Measures

Length

–         1 inch (in) = 25.4 millimitres (mm)

–         1 foot (ft) = 30.48 centimetres (cm)

–         1 yard (yd) = 0.914 metre (m)

–         1 mile = 1.609 kilometres (km)

Area

–         1 square foot (sq ft) = 929.03 sq cm

–         1 acre = 0.405 hectare (ha)

–         1 sq mile = 259 ha

Weight

–         1 ounce (oz) = 28.35 grams (g)

–         1 pound (lb) = 0.454 kilogram (kg)

–         1 stone (st) = 6.356 kg

–         1 ton (t) = 1016.04 kg

Capacity (British)

–         1 pint (pt) = 0.568 litre (l)

–         1 quart (qt) = 1.136 l

–         1 gallon (gal) = 4.546 l