Unit Converter
Convert length, weight, temperature, volume and speed between metric and imperial — instantly, in either direction.
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Conversions use exact international definitions (1 inch = 25.4 mm, 1 lb = 453.59237 g, 1 UK pint = 568.26125 ml). Results are rounded to six significant figures.
Handy UK conversions to remember
Five miles is almost exactly eight kilometres, a kilogram is about 2.2 pounds, and a UK pint is 568 ml — noticeably bigger than the 473 ml US pint. For temperature, 16°C is a mild 61°F, and the two scales cross at −40°.
Fuel economy, body weight in stones and recipe measures are the classic UK mixed-unit traps: a stone is 14 lb (about 6.35 kg), and UK recipes' "pint of milk" means the imperial pint, not the US one.