# The Units of Measurement Regulations 1995, Schedule: RELEVANT IMPERIAL UNITS, CORRESPONDING METRIC UNITS AND METRIC EQUIVALENTS Relevant imperial unit Corresponding metric unit Metric equivalent Length inch centimetre 2.54 centimetres hand metre 0.1016 metre foot metre 0.3048 metre yard metre 0.9144 metre fathom metre 1.8288 metres chain metre, 20.1168 metres furlong kilometre 0.201168 kilometre mile kilometre 1.609344 kilometres nautical mile (UK) metre 1853 metres Area square inch square centimetre 6.4516 square centimetres square foot square metre 0.09290304 square metre square yard square metre 0.83612736 square metre rood square metre 1011.7141056 square metres acre square metre 4046.8564224 square metres square mile square kilometre 2.589988110336 square kilometres Capacity fluid ounce millilitre 28.4130625 millilitres gill litre 0.1420653125 litre pint litre 0.56826125 litre quart litre 1.1365225 litres gallon litre 4.54609 litres Pressure inch of water pascal 249.08891 pascals Mass grain gram 0.06479891 gram dram gram 1.7718451953125 grams ounce (avoirdupois) gram 28.349523125 grams troy ounce gram 31.1034768 grams pound kilogram 0.45359237 kilogram stone kilogram, 6.35029318 kilograms quarter kilogram 12.70058636 kilograms cental kilogram 45.359237 kilograms hundredweight kilogram, 50.80234544 kilograms ton tonne 1.0160469088 tonnes Force pound-force newton 4.4482216152605 newtons ton-force kilonewton 9.96401641818352 kilonewtons Volume cubic inch cubic centimetre 16.387064 cubic centimetres cran cubic decimetre 170.478375 cubic decimetres cubic foot cubic metre 0.028316846592 cubic metre bushel cubic metre 0.03636872 cubic metre cubic yard cubic metre 0.764554857984 cubic metre Power horsepower kilowatt 0.74569987158227022 kilowatt Temperature degree Fahrenheit degree Celsius [See regulation 3(4)] Energy foot pound-force joule 1.3558179483314004 joules British thermal unit kilojoule 1.05505585257348 kilojoules therm megajoule 105.505585257348 megajoules Illuminance foot candle lux 10.763910416709 lux Speed knot (UK) metres per second 0.51477 metres per second --- Source: https://www.legislation.gov.uk/uksi/1995/1804/schedule (the official version) Page: https://openlegislation.uk/units-of-measurement-regulations-1995/schedule Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.