 | |
| Abbreviation | UKMA |
|---|---|
| Formation | 1999 (Constitution adopted in 2002) |
| Type | Advocacy group |
| Purpose | Promote metrication in the United Kingdom |
| Website | ukma.org.uk |
The UK Metric Association, or UKMA, is an advocacy group in the United Kingdom that argues for completion of metrication in the United Kingdom and advocates the use of the metric system among the general public in the UK.
UKMA was founded by Chris Keenan in 1999 and formally associated in 2002 as an independent, non-party political, single-issue organisation. [1] Later, an e-mail forum was started for supporters of metrication. In 2005, a website called ThinkMetric to help and encourage the general public to think in metric units was launched. In 2006, a blog called MetricViews was launched. [2]
The current chair of UKMA is Peter Burke, and the secretary is Ronnie Cohen. [3] As of April 2023, [update] its patrons are Gavin Esler, Jim Al-Khalili, Lord Kinnock and Lord Taverne. [4]
In July 2004, UKMA published its report, "A Very British Mess", as part of its campaign to end the simultaneous use of imperial and metric measurements and for the Government to complete the switch to metric units. [5] [6] In the foreward, its patron Geoffrey Howe confesses that "I didn’t challenge the decision to abolish the Metrication Board, when I was Chancellor of the Exchequer. I didn’t often run away from difficult decisions - but this is one that I did duck." [7]
In February 2006, UKMA called for the Government to set a date for the conversion of road signs from imperial to metric units. [8] [9]
The aims of UKMA contrast with those of the British Weights and Measures Association (BWMA), which opposes what it describes as "compulsory use of the metric system". [10] BWMA also campaigns against what it calls "unlawful metric pedestrian signs". [11] It claims that "hundreds of unlawful metric signs have been converted back to imperial, following letters of complaint by BWMA and its supporters". [12]
The imperial system of units, imperial system or imperial units is the system of units first defined in the British Weights and Measures Act 1824 and continued to be developed through a series of Weights and Measures Acts and amendments.
Metrication or metrification is the act or process of converting to the metric system of measurement. All over the world, countries have transitioned from local and traditional units of measurement to the metric system. This process began in France during the 1790s, and has persistently advanced over two centuries, accumulating into 95% of the world officially only using the modern metric system. Nonetheless, this also highlights that certain countries and sectors are either still transitioning or have chosen not to fully adopt the metric system.
Chinese units of measurement, known in Chinese as the shìzhì, are the traditional units of measurement of the Han Chinese. Although Chinese numerals have been decimal (base-10) since the Shang, several Chinese measures use hexadecimal (base-16). Local applications have varied, but the Chinese dynasties usually proclaimed standard measurements and recorded their predecessor's systems in their histories.
The pint is a unit of volume or capacity in both the imperial and United States customary measurement systems. In both of those systems it is traditionally one eighth of a gallon. The British imperial pint is about 20% larger than the American pint because the two systems are defined differently. Almost all other countries have standardized on the metric system, so although some of them still also have traditional units called pints, the volume varies by regional custom.
The long ton, also known as the imperial ton or displacement ton, is a measurement unit equal to 2,240 pounds (1,016.047 kg). It is the name for the unit called the "ton" in the avoirdupois system of weights or Imperial system of measurements. It was standardised in the 13th century. It is used in the United Kingdom and several other Commonwealth of Nations countries alongside the mass-based tonne defined in 1799, as well as in the United States for bulk commodities.
Metrication is the process of introducing the International System of Units, also known as SI units or the metric system, to replace a jurisdiction's traditional measuring units. U.S. customary units have been defined in terms of metric units since the 19th century, and the SI has been the "preferred system of weights and measures for United States trade and commerce" since 1975 according to United States law. However, conversion was not mandatory and many industries chose not to convert, and U.S. customary units remain in common use in many industries as well as in governmental use. There is government policy and metric (SI) program to implement and assist with metrication, however there is major social resistance for further metrication.
The Metrication Board was a non-departmental public body that existed in the United Kingdom to promote and co-ordinate metrication within the country. It was set up in 1969, four years after the metrication programme was announced, and wound down in 1981.
The US Metric Association (USMA), based in Windsor, Colorado, is a non-profit organization that advocates for total conversion of the United States to the International System of Units (SI). Founded on 27 December 1916 at Columbia University in New York City, it was originally called the American Metric Association. The USMA publishes a bi-monthly newsletter for its members on the state of the metric system in the United States called Metric Today.
The Metric Martyrs was a British advocacy group who campaigned for the freedom to choose what units of measurement are used by traders. The group believed that vendors should have the freedom to mark their goods with imperial weights and measurements alone. This opposes the current legal position that imperial units may be used so long as metric units are also displayed.
The spread of metrication around the world in the last two centuries has been met with both support and opposition.
Metrication in Canada began in 1970 and ceased in 1985. While Canada has converted to the metric system for many purposes, there is still significant use of non-metric units and standards in many sectors of the Canadian economy and everyday life today. This is mainly due to historical ties with the United Kingdom, the traditional use of the imperial system of measurement in Canada, proximity to the United States, and strong public opposition to metrication during the transition period.
Metrication in Australia effectively began in 1966 with the conversion to decimal currency under the auspices of the Decimal Currency Board. The conversion of measurements—metrication—commenced subsequently in 1971, under the direction of the Metric Conversion Board and actively proceeded until the Board was disbanded in 1981.
Metrication, the process of introducing the metric system of measurement in place of imperial units, has made steady progress in the United Kingdom since the mid-20th century but today remains equivocal and varies by context. Most of government, industry, commerce, and scientific research use the metric system. Imperial units are officially used to specify journey distances, vehicle speeds and the sizes of returnable milk containers, beer and cider glasses, fresh milk is often still sold in multiples of pints, with the metric equivalent also marked, and precious metals are sold by the troy ounce. Metric units must be used when selling other packaged or loose goods, and imperial units can stand alongside the metric units, but it cannot stand out more than the metric units. Imperial units are also often used to describe body measurements and vehicle fuel economy. The national curriculum requires metric units and imperial units that still remain in common usage to be taught in state schools.
Metrication, or the conversion to a measurement system based on the International System of Units (SI), occurred in India in stages between 1955 and 1962. The metric system in weights and measures was adopted by the Indian Parliament in December 1956 with the Standards of Weights and Measures Act, which took effect beginning 1 October 1958. The Indian Coinage Act was passed in 1955 by the Government of India to introduce decimal coinage in the country. The new system of coins became legal tender in April 1957, where the rupee consists of 100 paise. For the next five years, both the old and new systems were legal. In April 1962, all other systems were banned. This process of metrication is called "big-bang" route, which is to simultaneously outlaw the use of pre-metric measurement, metricate, reissue all government publications and laws, and change the education systems to metric.
Metrication in the Republic of Ireland happened mostly in the 20th century and was officially completed in 2005, with a few exceptions.
New Zealand started metrication in 1969 with the establishment of the Metric Advisory Board (MAB) and completed metrication on 14 December 1976. Until the 1970s, New Zealand traditionally used the imperial system for measurement, which it had inherited from the United Kingdom.
As of 2009, the European Union had issued two units of measurement directives. In 1971, it issued Directive 71/354/EEC, which required EU member states to standardise on the International System of Units (SI) rather than use a variety of CGS and MKS units then in use. The second, which replaced the first, was Directive 80/181/EEC, published in 1979 and later amended several times, which issued a number of derogations to the United Kingdom and Ireland based on the former directive.
The process of metrication in Barbados started in the early 1970s with an initiative by the government to push for industrialisation of the economy. The process has progressed slowly but the metric system has now replaced the previous imperial units.
The following outline is provided as an overview of and topical guide to the metric system:
The imperial and US customary measurement systems are both derived from an earlier English system of measurement which in turn can be traced back to Ancient Roman units of measurement, and Carolingian and Saxon units of measure.