Imperial scales may give short measure says metric group

The following news release was issued by UKMA at 02:00 on 18 January:

news release … news release … news release … news release … news release …

For immediate release

“Imperial scales may give short measure” says metric group

The general public would be well advised to avoid buying from traders who use illegal scales that only weigh in pounds and ounces – so says the UK Metric Association (UKMA). Imperial-only scales have not been checked by Trading Standards Officers for over eight years, and it is quite possible that they are no longer accurate. There is therefore a significant chance that when you buy from shop or market stall that uses illegal scales you will get less than you are paying for.

Responding to reports that a market stall-holder in Hackney is being prosecuted on Friday, 18 January for Weights and Measures offences, UKMA Chairman, Robin Paice, said; “Obviously, I can’t comment on this particular case as we don’t know the full facts. However, the publicity surrounding the case suggests that, like the so-called ‘metric martyrs’ in Sunderland and elsewhere, this is really a political stunt. People are entitled to campaign to change the law, but they are not entitled to break laws just because they disagree with them. They don’t deserve any sympathy.”


Since 2000, UK law has required that all shops and markets in the UK must weigh and measure at the point of sale (checkout) in grams and kilograms. Traders’ scales are periodically tested by Trading Standards Officers (TSOs) to ensure they are accurate. However, traders can still give an equivalent price in pounds and ounces if they wish. Customers can also order in pounds and ounces if they wish, and the shopkeeper or trader simply has to weigh out an equivalent amount in grams and kilograms.

Originally, it was intended that the option to show equivalent imperial prices would be phased out after 2009, but the European Commission has now proposed that this option should be retained indefinitely. However, increasingly, supermarkets are dropping the imperial equivalents, and customers are ordering at the deli counter in grams rather than obsolete ounces.

Unfortunately, egged on by populist, Eurosceptic politicians, some traders decided in 2000 to try to defy the law and continue weighing in pounds and ounces. The so-called “metric martyrs” (more accurately, they were “imperial luddites”) were found guilty of various offences under the Weights and Measures Act and fined. All their appeals to the UK courts and even the European Court of Human Rights were rejected in 2001/2.

The current issue in Hackney appears to be an attempt to re-run the same political stunt. It is unlikely to work, as it is now obvious that the law is home-grown UK law and not dictated by Brussels. People are getting rather bored by the antics of fringe politicians seeking bogus martyrdom.

UKMA Chairman, Robin Paice added:
“The purpose of the UK law is to ensure that consumers can compare goods in the supermarket and the street market on the same basis, using the same measurement units. How can you compare tomatoes at £2.09 per kilogram in the supermarket with tomatoes at 99p per pound in the market – unless you know the conversion factors and have a pocket calculator with you? It is fundamental to consumer protection that every body uses the same measurement units.

My advice to shoppers is this:

  • Avoid traders who use illegal imperial scales. You don’t know whether you are getting short measure.
  • Don’t waste your sympathy on traders who deliberately broke the law in order to seek bogus martyrdom. The vast majority of traders operate legally and cope perfectly well with metric measures.

Every country needs a single system of weights and measures that everybody understands and uses for all purposes. Nobody needs two systems.”

Notes for editors

(a) The UK Metric Association (UKMA) is an independent, non-party political, single issue organisation which advocates the full adoption of the international metric system (“Système International” – SI) for all official, trade, legal, contractual and other purposes in the United Kingdom as soon as practicable. UKMA is financed entirely by membership subscriptions and personal donations.

(b)Further extensive background information can be found generally on UKMA’s website at

(c) The following are available for interviews:

Robin Paice (Chairman of UKMA) on 023 9275 5268 or for radio/TV interviews in Portsmouth or Southampton

Derek Pollard (Secretary) on 020 8374 6997 for radio/TV interviews in London

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