Which Imperial Units Are Still Legal in the UK?
Which imperial units are still legal in the UK? The pint, troy ounce and road-sign miles, plus rules for showing pounds, feet and gallons beside metric.
Carolina
Carolina is the editor of Measurement Units. She writes and maintains the site's UK measuring guides and unit converters, checking conversion factors against NIST, BIPM and UK government sources.
Pint of Beer Size UK: How Many ml in a Pint?
Pint of beer size in the UK in ml: a pint is 568 ml, the legal measures pubs must use, how much head is allowed and how it compares with a US pint.
Is It Legal to Sell in Pounds and Ounces in the UK?
Is it legal to sell in pounds and ounces in the UK? What the law allows on labels and price tickets, the exceptions, and the 2023 decision to keep metric.
Weights and Measures Act 1985 Explained: A UK Guide
The Weights and Measures Act 1985 explained: units lawful for trade, short-weight offences, stamped scales, Trading Standards powers and the 2025 reforms.
When Did the UK Go Metric? Key Dates from 1965 to 2000
When did the UK go metric? Key dates from 1965 to 2000, why road signs and pints never changed, and what the law on metric and imperial units says today.
Why Does the UK Use Stone for Weight? A 14 lb History
Why does the UK use stone for weight? How the 14 lb stone came from the wool trade, what the law allows today and why Britons still weigh themselves in it.
Why Does the UK Still Use Miles? The History and the Law
Why does the UK still use miles? The law, the history and the practical reasons road signs stayed imperial while almost everything else went metric.
How to Measure Plant Pot Size in the UK: A Complete Guide
Selecting the right-sized pot for your plants is crucial for their health and growth. An undersized pot can restrict root development, leading to nutrient deficiencies and stunted growth. Conversely, an oversized pot can retain excessive moisture, promoting root rot and…
How to Measure for Nursing Bra UK
Finding the right nursing bra is essential for every breastfeeding mother. During pregnancy and postpartum, your body undergoes many changes, particularly in your breast size and shape. Navigating the world of nursing bras can be a daunting task, especially for…
How to Measure Humidity in Your Home: UK Guide
Humidity, the amount of water vapor in the air, plays a crucial role in our comfort and well-being. In the UK, with its variable climate, maintaining optimal indoor humidity levels is essential for a healthy living environment. High humidity can…