View source for Dutch units of measurement

{{Use dmy dates|date=October 2021}}
[[Image:Gouda-Waag-01.jpg|thumb|339px|Relief on [[Weigh house|De Waag]], [[Gouda, South Holland|Gouda]] made by [[Bartholomeus Eggers]] in 1668]]
The '''Dutch units of measurement''' used today are those of the [[metric system]]. Before the 19th century, a wide variety of different weights and measures were used by the various Dutch towns and provinces. Despite the country's small size, there was a lack of uniformity. During the [[Dutch Golden Age]], these weights and measures accompanied the Dutch to the farthest corners of their colonial empire, including South Africa, [[New Amsterdam]] and the [[Dutch East Indies]]. Units of weight included the ''pond'', ''ons'' and ''last''. There was also an [[apothecaries' system]] of weights. The ''mijl'' and ''roede'' were measurements of distance. Smaller distances were measured in units based on parts of the body – the ''el'', the ''voet'', the ''palm'' and the ''duim''. Area was measured by the ''morgen'', ''hont'', ''roede'' and ''voet''. Units of volume included the ''okshoofd'', ''aam'', ''anker'', ''stoop'', and ''mingel''.<ref>Much of the information on this page was obtained from various unfootnoted articles found on the Dutch version of Wikipedia, including "Metriek stelsel", "Nederlands metriek stelsel", "Pond (massa)", "Ons (massa)", "Last", "Medicinaal pond", "Mijl (Nederland)", "Roede (lengte)",  "El (lengtemaat)", "Voet (lengte)", "Duim(lengte)", "Anker", "Aam", "Morgen" and "Roede" and "Hont". Some of the information was also found in other articles on the English Wikipedia, including "Apothecaries' system". In accordance with Wikipedia policy to avoid references to other Wikipedia articles, the source of this information is not footnoted in each sentence.</ref> At the start of the 19th century the Dutch adopted a unified [[metric system]]. It was based on a modified version of the metric system, different from the system used today. In 1869, this was realigned with the international [[metric system]]. These old units of measurement have disappeared, but they remain a colourful legacy of the Netherlands' maritime and commercial importance. The old units of measurement survive today in a number of Dutch sayings and expressions.

== Historical units of measure==
When [[Charlemagne]] was crowned [[Holy Roman Emperor]] in 800 AD, his empire included most of modern-day Western Europe including the [[Netherlands]] and [[Belgium]].  Charlemagne introduced a standard system of measurement across his domains using names such as "pound" and "foot". At the [[Treaty of Verdun]], the empire was divided between Charlemagne's three grandsons. [[Lothair II of Lotharingia|Lothair]] received the central portion, stretching from the Netherlands in the north to [[Upper Burgundy|Burgundy]] and [[Provence]] in the south.

Further fragmentation followed and with it various parts of the empire modified the units of measures in a manner that suited the local lord.  By the start of the [[religious wars]], the territories that made up the Netherlands, still part of the Holy Roman Empire, had passed into the lordship of the [[King of Spain]]. Each territory had its own variant of the original Carolingian units of measure. Under the [[Treaty of Westphalia]] in 1648, the seven Protestant territories that owed a nominal allegiance to the [[Prince of Orange]] seceded from the Holy Roman Empire and established their own confederacy but each kept its own system of measures.

===Weight===
[[Image:Stadhuis Bolsward 51.JPG|thumb|Scales at the town hall (and former weighhouse) in [[Bolsward]]]]

====Pond====
:*''[[:nl:Pond (massa)|pond]]'' (''[[pound (mass)|pound]]'') ([[Amsterdam]]) – 494.09 g (1.0893 [[pound (mass)|lb]]) (with variations, now 500 g)
:A ''pond'' was divided into sixteen ''ons''. A ''pond'' was roughly about the same size as a modern pound. It was generally around 480&nbsp;grams, but there was much variation from region to region. The most commonly used measure of weight was the Amsterdam pound.<ref name="Boxer">{{cite book|author=Charles Ralph Boxer|title=The Dutch Seaborne Empire 1600–1800|publisher=Hutchinson|year=1959|isbn=9780091310516|oclc=11348150}} Appendix</ref>

::* one [[Amsterdam]] pound (scale weight) (''Amsterdams pond – waaggewicht'') was 494.09 grams,
::* one [[Gorinchem]] pound (''Gorinchems pond'') was 466 grams,
::* one [[Utrecht]] heavy pound (''Utrechts zwaar pond'') was 497.8 grams.

:After the metric system was introduced in 1816, the word ''pond'' continued to be used, but for 1 kilogram. This doubling in size of the ''pond'' in one fell swoop created a good deal of confusion. The name "kilogram" was adopted in 1869, but the ''pond'' was only eliminated as a formal unit of measurement in 1937. ''Pond'' is still used today in everyday parlance to refer to 500 g, not far from its historical weight. The word ''pond'' is also used when referring to the pound used in English-speaking countries.

====Ons====
:*''[[:nl:Ons (massa)|ons, once]]'' ([[ounce]]) – {{frac|16}} pond = 30.881 g (1.0893 [[ounce|oz]]) (with variations, now 100 g)

:An ''ons'' was {{frac|1|16}} of a ''pond''. An ''ons'' was generally around 30&nbsp;grams, but there was much variation. The figures provided above for the weight of the various pounds used in the Netherlands can be divided by 16 to obtain the weights of the various ounces in use. After the metric system was introduced, the word ''ons'' continued to be used, but for 100 g. The ''ons'' was eliminated as a formal unit of measurement in 1937, but it is still used today in everyday parlance to refer to 100 g. In the Netherlands today the word ''ons'' does not commonly refer to its historical weight of around 30 g (the exact weight depending on where you were), but to 100 g.

====Last'' or ''Scheepslast==== 
:* ''scheepslast'' – 4,000 Amsterdam ''pond'' = {{convert|1976.4|kg|ST LT|abbr=on|lk=out}} 
:Meaning literally a "load", a ''last'' was essentially the equivalent of {{convert|120|cuft|m3|3}} of shipping space.<ref name="Boxer"/> A ''last'' in the [[Dutch East India Company]] (VOC) in the 17th century was about the same as 1,250&nbsp;kg, becoming later as much as 2,000&nbsp;kg.<ref>{{cite web|url=http://www.inghist.nl/Onderzoek/Projecten/VocGlossarium/zoekvoc |title=VOC Glossarium |date=5 June 2014 |publisher=Inghist.nl |access-date=2014-08-19}}</ref>

:In the Dutch fishery, a ''last'' was a measurement of the fish loaded into the various types of fishing boat in use (e.g. a ''bomschuit'', ''buis'', ''sloep'' or ''logger''). The last of these could take 35 to 40 ''last'' of fish, the exact amount depending on the location. In the [[South Holland]] fishing villages of [[Scheveningen]] and [[Katwijk]], it amounted to 17 crans (''kantjes'') of [[herring]]; in [[Vlaardingen]] 14 packed tons. A cran (''kantje'') held about 900 to 1,000 herring.<ref>A. Hoogendijk Jz., ''De grootvisserij op de Noordzee'', 1895</ref><ref>Piet Spaans, ''Bouwteelt'', 2007</ref> In [[Flanders]] a ''last'' was about 1,000&nbsp;kg of herring. The term fell out of use when the herring fishery disappeared.<ref>R. Degrijse, ''Vlaanderens haringbedrijf'', 1944</ref>

====Apothecaries' system====
:In the Netherlands (as in English-speaking countries) there was an [[apothecaries' system]] of weights.

::{| class="wikitable"  style="text-align:center;"
|-
! Unit !! Symbol !! Division !! Grains !! Grams
|-
! medicinal pound (''medicinaal pond'') 
| unicode|lb || 12 ''ons'' || 5760 || 373.241 72
|-
! medicinal ounce (''medicinaal ons'') 
| ℥ || 8 ''drachmen'' || 480 || 31.103 477
|-
! dram (''drachme'')
| ℨ || 3 ''scrupels'' || 60 || 3.887 9346
|-
! scruple (''scrupel'') 
| ℈ || 20 ''grein'' || 20 || 1.295 9782
|-
! grain (''grein'') 
| gr. || || 1 || 0.064 79891
|}

===Length===
====Mijl====
:* one Dutch mile or mijl ({{lang|nl|[[:nl:Mijl (Nederland)|mijl]]}}) = about 5½&ndash;6¼ km

:The usual {{lang|nl|Hollandse}} or {{lang|nl|Nederlandse mijl}} was actually the [[league (unit)|league]], the Celtic unit of distance notionally equivalent to an hour's walk ({{lang|nl|één uur gaans}}),<ref name = VOC>{{cite web|url=http://www.vocsite.nl/woordenlijst/navigatie.html |title=de VOC site – Woordenlijst – Navigatie "(the VOC site – Vocabulary – Navigation)" – (in Dutch) |publisher=Vocsite.nl |access-date=2014-08-19}}</ref> varying over different terrain. This was usually standardized at the value of 20,000 [[#Voet|feet]], although the foot varied over time and from region to region. The [[Amsterdam]] foot produced a mijl of around 3.52 miles or 5.66 km, while the [[Rijnland|Rhenish]] foot produced one of 3.9 miles or 6.28 km.

:In specific contexts, a separate mile might be used. Sailors used a [[nautical mile|nautical]] or [[geographical mile]] ({{lang|nl|geografische mijl}}) based on varying divisions of an equatorial degree. The traditional version was identical to the German and Scandinavian nautical mile of 4 [[minutes of arc]]{{mdash}}{{sfrac|1|15}} of an [[equator]]ial [[degree (angle)|degree]]{{mdash}}or about 7.4 km. Some, however, used the Portuguese maritime league ({{langx|pt|légua de 20 ao grau}}) of {{sfrac|1|20}} of a degree or about 5.56 km. The "Netherlands mile" was also used as a direct synonym for the [[kilometer]] between the beginning of Dutch [[metrification]] in 1816 and the completion of the reforms in 1869. (Within Dutch, the word {{lang|nl|mijl}} has now fallen out of use except in fixed expressions and references to [[English units|English]] and international nautical units.)

{{anchor|Roede}}

====Roede====
:The ''roede'' (literally, "rod") was generally somewhat smaller than the English rod, which is 16.5 feet (or 5.0292 metres). However, the length of a ''roede'', and the number of ''voeten'' in a ''roede'', varied from place to place. There could be anywhere from 7 to 21 ''voeten'' in a ''roede''. The ''roede'' used in the Netherlands for the measurement of long distances was generally the Rijnland rod. Other rods included:<ref name=deGelder167>de Gelder, page 167</ref>

::* one [[Rijnland]] rod (''Rijnlandse roede'') (= 12 Rijnland feet) was 3.767 m
::* one [[Amsterdam]] rod (''Amsterdamse roede'') (= 13 Amsterdam feet) was 3.68 m
::* one Bloois rod (''Blooise roede'') (= 12 feet) was 3.612 m
::* one [['s-Hertogenbosch]] rod ('''s-Hertogenbosche roede'') (= 20 feet) was 5.75 m
::* one Hondsbos and Rijp rod (''Hondsbosse en Rijp roede'') was 3.42 m
::* one Putten rod (''Puttense roede'') (= 14 feet) was 4.056 m
::* one Schouw rod (''Schouwse roede'') (= 12 feet) was 3.729 m
::* one Kings rod (in Friesland) (''Konings roede'') (= 12 feet) was 3.913&nbsp;m
::* one Gelderland rod (''Geldersche roede'') (= 14 feet) was 3.807&nbsp;m

:Today the word ''roede'' is not in common use in the Netherlands as a unit of measurement.

====El====
:The length represented by the Dutch ell was the distance of the inside of the arm (i.e. the distance from the armpit to the tip of the fingers), an easy way to measure length. The Dutch "ell", which varied from town to town ({{nowrap|55–75 cm)}}, was somewhat shorter than the English [[ell]] (114.3&nbsp;cm).  A section of measurements is given below:<ref>de Gelder, page 169</ref>

::* one [[The Hague]] ell or standard ell (''Haagse of gewone el'') = 69.425 cm
::* one [[Amsterdam]] ell (''Amsterdamse el'') = 68.78&nbsp;cm
::* one [[North Brabant|Brabant]] ell (''Brabantse el'') = 69.2&nbsp;cm or 16 ''tailles''
::* one [[Delft]] ell (''Delfsche el'') = 68.2&nbsp;cm
::* one [[Goes]] ell (''Goesche el'') = 69&nbsp;cm
::* one [[Twente]] ell (''Twentse el'') = 58.7&nbsp;cm

:In 1725 The Hague ell was fixed as the national standard for tax purposes and from 1816 to 1869, the word ''el'' was used in the Netherlands to refer to the metre. In 1869 the word ''meter'' was adopted and the ''el'', disappeared, both as a word and as a unit of measurement.

====Voet====
:The ''voet'' ("foot") was of the same order of magnitude as the [[Foot (unit)|English foot]] ({{convert|1|ft|cm|2|disp=output only}}), but its exact size varied from city to city and from province to province.  There were 10, 11, 12 or 13 ''duimen'' (inches) in a ''voet'', depending on the city's local regulations.  The Rijnland foot which had been in use since 1621 was most commonly used ''voet'' in the both Netherlands and in parts of Germany.  In 1807, de Gelder measured the copy of the Rijnland foot in the [[Leiden]] observatory to be {{val|0.3139465|u=m}} while Eytelwien found that the master copy that was in use in Germany was {{val|0.313853543|u=m}} – a difference of 0.03%.<ref>de Gelder, page 164</ref> In the seventeenth and eighteenth centuries Dutch settlers took the Rijnland foot to the [[Cape Colony]]. In 1859, by which time the colony had passed into British control, the [[Cape foot]] was calibrated against the English foot and legally defined as 1.033 English feet ({{val|0.314858|u=m}}).<ref>{{cite web
|title = Cape Foot
|url = http://www.sizes.com/units/cape_foot.htm
|publisher = Sizes
|access-date = 2011-12-26}}</ref>

:The following is a partial list of the various ''voeten'' in use the Netherlands:<ref name=deGelder167/>

::* one [[Rijnland]] foot (''Rijnlandse voet'') (= 12 Rijnland inches) was 31.4&nbsp;cm
::* one [[Amsterdam]] foot (''Amsterdamse voet'') (= 11 Amsterdam inches) was 28.3133 cm
::* one Bloois foot (''Blooise voet'') was 30.1&nbsp;cm
::* one [['s-Hertogenbosch]] foot ('''s-Hertogenbossche voet'') was 28.7&nbsp;cm
::* one Hondsbos and Rijp foot (''Honsbossche en Rijpse voet'') was 28.5&nbsp;cm
::* one Schouw foot (''Schouwse voet'') was 31.1&nbsp;cm
::* one [[Gelderland]] foot (''Geldersche voet'') was 29.2&nbsp;cm

:Today the word ''voet'' is not in common use in the Netherlands as a unit of measurement, except when referring to the English foot.

====Palm====
:*''kleine palm'' (small [[Palm (measurement)|palm]]) – 3&nbsp;cm (1.18&nbsp;in)<ref>{{cite web
|website = allesopeenrij.nl
|url=http://www.allesopeenrij.nl/lijsten/wetenschap/oudematen_gewichten.html
|title=Oude maten en gewichten ''Old measures and weights'' (data taken from ''Mariska van Venetië, Alles wat u beslist over Nederland moet weten. Uitgeverij Bert Bakker, Amsterdam, 2004'')
|publisher=Allesopeenrij – Nederland in lijsten [Everything in a row, The Netherlands in lists]
|quote = Follow link "verkeer & ruimte" and then "ouden maten en gewichten"
|access-date = 2010-02-06}}</ref>

:*''grote palm'' (large palm) – 9.6&nbsp;cm; after 1820, 10&nbsp;cm

====Duim====
:The ''duim'' ([[:nl:Duim (lengtemaat)|nl]]) ("thumb", but translated as "inch") was about the width of the top phalanx of the thumb of an adult man. It was very similar to the length of the English inch (2.54&nbsp;cm). Its exact length and definition varied from region to region, but was usually one-twelfth of a ''voet'', though the ''Amsterdamse duim'' was one eleventh of an ''Amsterdamse voet''.

::* one [[Amsterdam]] inch (''Amsterdamse duim'') was {{val|2.57393|u=cm}}
::* one [[Gelderland]] or [[Nijmegen]] inch (''Gelderse of Nijmeegse duim'') was 2.7&nbsp;cm
::* one [[Rijnland]] inch (''Rijnlandse duim'') was 2.61&nbsp;cm

:When the "Dutch metric system" (''Nederlands metriek stelsel'') was introduced in 1820 the word ''duim'' was used for the centimeter, but in 1870 was dropped. Today the word ''duim'' is not in common use in the Netherlands as a unit of measurement except when referring to the English inch.  The word is still used in certain expressions such as "''drieduims pijp''" (three-inch pipe) and "''duimstok''" (ruler or gauge).

===Area===
'''Morgen'''
{{main|morgen}}
:*''[[:nl:morgen (oppervlaktemaat)|morgen]]'' was 8,516 square metres (with variations).

:"Morgen" is [[Dutch language|Dutch]] for "morning". A morgen of land represented the amount of land that could be ploughed in a morning. The exact size varied from region to region. The number of ''roede'' in a ''morgen'' also varied from place to place, and could be anywhere from 150 to 900.

::* one [[Rijnland]] morgen (''Rijnlandse morgen'') = 8,516 square metres (Divided into 6 honts. A hont was divided into 100 square Rijnland rods. So there were 600 Rijnland rods in a ''morgen''. A Rijnland rod was divided into 144 square Rijnland feet.)
::* one [[de Bilt|Bilt]] morgen (''Biltse morgen'') = 9,200 square metres
::* one [[Gelderland]] morgen (''Gelderse morgen'') = 8,600 square metres
::* one [[Gooi]] morgen (''Gooise morgen'') = 9,800 square metres
::* one [['s-Hertogenbosch]] morgen (''Bossche morgen'') = 9,930 square metres (Divided into 6 loopense = 600 square roede = 240,000 square feet.)
::* one [[Veluwe]] morgen (''Veluwse morgen'') = 9,300 square metres
::* one [[Waterland]] morgen (''Waterlandse morgen'') = 10,700 square metres
::* one [[Zijpe|Zijp]] or [[Schermer]] morgen (''Zijper of Schermer morgen'') = 8,516 square metres

:During the French occupation, measurements were standardised and regional variations eliminated. Initially, the Napoleonic king [[Louis Napoleon]] decreed in 1806 that the [[Rijnland]] morgen would be used throughout the country, but this only lasted a few years. It wasn't long before the metric system was introduced. Since then land has been measured in square metres (hectares, [[Hectare#Are|are]]s and [[centiare]]s).

'''Hont'''

:A ''hont'' consisted of 100 ''roede''.The exact size of a ''hont'' of land varied from place to place, but the Rijnland ''hont'' was 1,400 square metres. Another name for ''hont'' was "''honderd''", a Dutch word meaning "hundred".  The word ''hond'' is derived from the earlier Germanic word ''hunda'',<ref>{{cite web|url=http://www.rzuser.uni-heidelberg.de/~cd2/drw/e/hu/hund-2.htm |title=Universität Heidelberg – "Hund" |publisher=Rzuser.uni-heidelberg.de |access-date=2014-08-19}}</ref> which meant "hundred" (or "dog"). After the metric system was introduced in the 19th century, the measurement fell into disuse.

'''Roede'''

:A square ''roede'' was also referred to as a ''roede''. ''Roede'' (or ''roe'') was both an area measurement as well as a linear measurement. The exact size of a ''roede'' depended on the length of the local ''roede'', which varied from place to place. The most common ''roede'' used in the Netherlands was the Rijnland rod.

::* one Rijnland rod (''Rijnlandse roede'') was 14.19 m<sup>2</sup>
::* one Amsterdam rod (''Amsterdamse roede'') was 13.52 m<sup>2</sup>
::* one 's-Hertogenbosch rod (''Bossche roede'') was 33.1 m<sup>2</sup>
::* one Breda rod (''Bredase roede'') was 32.26 m<sup>2</sup>
::* one Groningen rod (''Groningse roede'') was 16.72 m<sup>2</sup>
::* one Hondsbos rod (''Hondsbosse roede'') was 11.71 m<sup>2</sup>

:When the Dutch metric system (''Nederlands metriek stelsel'') was introduced in 1816, the old names were used for the new metric measures. An are was referred to as a "square rod" (''vierkante roede''). The rod and the square rod were abandoned by 1937, but the Rijnland rod (''Rijnlandse Roede''), abbreviated as "RR<sup>2</sup>", is still used as a measurement of surface area for flowerbulb fields.

'''Voet'''

::*''[[:nl:Voet (lengtemaat)#Oppervlaktemaat|Rijnlandse voet]]'' (''[[Rijnland]] square foot'') – 0.098596 m<sup>2</sup> (1.0163 sq ft)
::*''[[:nl:Voet (lengtemaat)#Oppervlaktemaat|Hertogenbossche voet]]'' (''[['s-Hertogenbosch]]'' ''square foot'') – 0.082369 m<sup>2</sup> (0.8866 sq ft)

:A square ''voet'' was also called a ''voet''. The word ''voet'' (meaning "foot") could refer to a foot or to a square foot. The exact size of a ''voet'' depended on the length of the local ''voet'', which changed from region to region. The most commonly used ''voet'' in the Netherlands was the Rijnland foot.

===Volume===

:The Dutch measures of volume, as with all other measures, varied from locality to locality. The modern-day equivalents are therefore only approximate and equating litres with [[quart]]s will not unduly distort the results (1 litre = 1.057 US quarts = 0.880 UK quarts) <!-- convert|1|L|USqt impqt|3}}  -->

'''Okshoofd'''
{{anchor|Okshoofd}}
:*''[[:nl:okshoofd|okshoofd]]'' (''oxhead'') – 6 ankers = 232 litres

:A ''okshoofd'' (earlier spelling: ''oxhoofd'') was a measurement of volume representing the volume held by a large barrel of wine. The measurement was also used for vinegar, tobacco and sugar. The measurement is still used by businesses in the wine and spirits trade. There were six ''ankers'' in an ''okshoofd''.

:There is a saying in Dutch: "You can't draw clean wine from an unclean oxhead". (''Men kan geen reine wijn uit een onrein okshoofd tappen''.)

'''Aam'''

:*''[[:nl:Aam (metrologie)|aam]]''  – 4 ankers = 155 litres

:There were four ''ankers'' in an ''aam''. It was used for measuring the volume of wine. The size of an ''aam'' varied from place to place. It was anything from 141 to 160 litres.

'''Anker'''

:*''[[:nl:Anker (wijn)|anker]]'' (''anchor'') = approximately 38.75 litres
:An ''anker'' was a measure of volume representing the volume held in a small cask holding around 45 bottles.

'''Stoop'''

:*''stoop'' – {{frac|1|16}} anker = 2.4 litres<ref name = VOC/>

'''Mingel'''

:*''mingel'' – {{1/2}} stoop = approximately 1.21 litres<ref>{{cite web
|url = http://www.deoudeflesch.nl/english.htm
|title = Home Page (English)
|publisher = "De Oude Flesch" (A society dedicated to the collecting of historic Dutch bottles)
|access-date = 2010-05-01
|archive-url = https://web.archive.org/web/20090228094049/http://www.deoudeflesch.nl/english.htm
|archive-date = 28 February 2009
|url-status = dead
}}</ref>

==Dutch metric system==
In 1792, the southern part of the Netherlands was incorporated into the [[First French Republic]], and in 1807, the rest of the Netherlands was incorporated into what had now become the [[First French Empire]] and as a result the Netherlands was forced to accept the [[French units of measurement]]. In 1812, France replaced the original [[metric system]] with the [[mesures usuelles]].

Under the [[Congress of Vienna]] in 1815, the [[Kingdom of the Netherlands]] which included [[Belgium]] and [[Luxembourg]] was established as a buffer state against France. Under the Royal decree of 27 March 1817 (''Koningklijk besluit van den 27 Maart 1817''), the newly formed [[Kingdom of the Netherlands]] abandoned the mesures usuelles in favour of the "Dutch" [[metric system]] (''Nederlands metrisch stelsel'') in which metric units were given the names of units of measure that were then in use.  Examples include:<ref>de Gelder, pages 155–157</ref>

'''Length'''
:1 ''mijl'' (mile) = 1 kilometre (1 statute mile = 1.609&nbsp;km)
:1 ''roede'' (rood) = 10 metres
:1 ''el'' (ell) = 1 metre (1 English ell of 45&nbsp;in = 1.143&nbsp;m)
:1 ''palm'' (hand)  = 10 centimetres (1 English hand = 10.16&nbsp;cm)
:1 ''duim'' (inch) = 1 centimetre (1 inch = 2.54&nbsp;cm)
:1 ''streep'' (line) = 1 millimetre (1 English line = 2.12&nbsp;mm)
'''Area'''
:1 ''bunder'' = 1 hectare
:1 ''vierkante roede'' (square rod) = 1 are or 100&nbsp;m<sup>2</sup>
'''Volume'''
:1 ''wisse'' or ''teerling el'' = 1 cubic metre.
:1 ''mud'' (bushel) = 100 litres
:1 ''kop'' (cup) = 1 litre (1 Australian cup = 250&nbsp;ml)
:1 ''maatje'' (small measure) = 100 millilitres
:1 ''vingerhoed'' (thimble) = 10 millilitres
'''Weight''' 
:1 ''pond'' (pound) = 1 kilogram (1 pound avoirdupois = 0.454&nbsp;kg)
:::(though in modern colloquial speech, 500&nbsp;g is also known as a ''pond''.
:1 ''ons'' (ounce) = 100 grams (1 ounce avoirdupois = 28.35&nbsp;g)
:1 ''lood'' (lead) = 10 grams
:1 ''wigtje'' (small weight) = 1 gram
:1 ''korrel'' (grain) = 0.1 gram

In 1816, the Netherlands and France were the only countries in the world that were using variations of the metric system. By the late 1860s, the German [[Zollverein]] and many other neighbouring countries had adopted the metric system, so in 1869 the modern names were adopted (''Wet van 7 April 1869, Staatsblad No.57''). A few of the older names remained officially in use, but they were eliminated when the system was further standardised by the 1937 Act on Weights and Measures (''IJkwet''). Nevertheless the ''ons'' and ''pond'' are still used colloquially to always mean respectively 100 grams and 500 grams.

==Modern metric system==
[[Image:N924 wegwijzer 06.JPG|thumb|Signposts showing number of [[kilometre]]s to nearest towns. A roadsign showing the speed limit in kilometres per hour is visible in the middle distance.]]

Today the Netherlands uses the [[International system of units]] (SI).

===Nomenclature===
The metric system in the Netherlands has virtually the same nomenclature as in English (to be noted that English got metre from French), except:

:* the "-er" spelling is used (e.g. ''kilometer''),
:* there is no plural form (e.g. "three metres" is expressed as "''drie meter''"),
:* ''ton'' is Dutch for "[[tonne]]". ''Ton'' is also used to refer to an amount of currency worth 100 thousand.
:* a few metric measurements unfamiliar to most English speakers are sometimes used to refer to property measurements (e.g. are and [[centiare]]).

===Standards===
On 30 October 2006, the Weights and Measures Act was replaced by the Metrology Act. The organisation currently responsible for weights and measures in the Netherlands is a private company called the ''Nederlands Meetinstituut'' (NMi). Literally, this means "Dutch Institute of Measures", but the organisation uses its Dutch name in English. The company was created in 1989 when the Metrology Service (Dienst van het IJkwezen) was privatised. At first, the sole shareholder was the Dutch government, but in 2001 the sole shareholder became TNO Bedrijven, a holding company for TNO, the Dutch Organisation for Applied Scientific Research.<ref>[http://nmi.nl/index.php?pageId=939&lg=en] {{webarchive|url=https://web.archive.org/web/20071028035608/http://nmi.nl/index.php?pageId=939&lg=en|date=28 October 2007}}</ref><ref>{{cite web
 |title       = History
 |url         = http://www.nmi.nl/metrology/what&how_metrology/history_metrology
 |publisher   = Dutch Metrology Institute/Nederlands Metrologie Instituut (NMI)
 |access-date  = 10 November 2012
 |url-status     = dead
 |archive-url  = https://web.archive.org/web/20120721225748/http://www.nmi.nl/metrology/what%26how_metrology/history_metrology
 |archive-date = 21 July 2012
}}</ref>

==See also==
* [[Historical weights and measures]]
* [[SI]]
* [[Weights and measures]]
* [[Kosten unit]]
{{systems of measurement}}

==Notes==
{{Reflist}}

== References ==
*{{cite book
|author = W.C.H. Staring
|title = De binnen- en buitenlandsche maten, gewichten en munten van vroeger en tegenwoordig, met hunne onderlinge vergelijkingen en herleidingen, benevens vele andere, dagelijks te pas komende opgaven en berekeningen. 
|edition = Vierde, herziene en veel vermeerderde druk
|language = nl
|year = 1902}}
*{{cite book
|author = J.M. Verhoef
|title = De oude Nederlandse maten en gewichten
|language = nl
|url = http://www.meertens.knaw.nl/mgw/
|trans-title=Old Dutch weights and measures
|edition = 2e druk
|year = 1983
|publisher =  P.J. Meertens-Instituut voor dialectologie, volkskunde en naamkunde van de Koninklijke Nederlande Akademie van Wetenschappen}}
*{{cite book
|url = https://books.google.com/books?id=XYVbAAAAQAAJ
|title = Allereerste Gronden der Cijferkunst
|author = Jacob de Gelder
|location = 's Gravenhage and Amsterdam
|language = nl
|year = 1824
|pages = 163–176
|publisher = de Gebroeders van Cleef
|trans-title=Introduction to Numeracy
|access-date = 2011-03-02}}

==External links==
* [http://nmi.nl/ NMI] (Nederlands Meetinstituut (NMi) There is some information in English, but very little on the historical system.)
* [https://web.archive.org/web/20131030010155/http://www.vsl.nl/3 VSL Dutch Metrology Institute]
* [http://www.rabbel.nl/Olddumes.html Cor Snabel's page on Old Dutch Measures] {{Webarchive|url=https://web.archive.org/web/20160815072902/http://rabbel.nl/Olddumes.html |date=15 August 2016 }} (A comprehensive collection of links and information.)
* [http://www.ppsimons.nl/stamboom/maten.htm Pieter Simons' page on "Oude Maten"] (Dutch only)
* [http://home.kpn.nl/vanadovv/Staring.html Oscar van Vlijmen's page on "Historische eenheden Nederland en België"] (Dutch only)
* [http://www.gmvv.org/ Dutch Weights and Measures Collectors Society]
{{systems of measurement}}

[[Category:Systems of units]]
[[Category:History of science and technology in the Netherlands]]
[[Category:Units of measurement by country]]