Distancia

1 inch (in) 2.54 cm
1 foot (ft) = 12 inches 30.48 cm
1 yard (yd) = 3 feet 0.91 m
1 mile (ml) 1.61 km

Peso

1 ounce (oz) 28.35 g
1 pound (lb) = 16 ounces 0.454 kg
1 stone (st) = 14 pounds 6.35 kg
1 hundredweight (cwt) = 8 stones 50.80 kg
1 ton = 20 cwt (Britain) 1016 kg
1 ton = 20 cwt (USA) 907.18 kg

Area

1 square inch (sq in) 6.45 cm2
1 square mile (sq ml) 2.59 km2
1 acre 0.45 hectáreas

Líquidos (Britain)

1 gill 0.14 litros
1 pint (pt) = 4 gills 0.57 litros
1 quart (qt) = 2 pints 1.14 litros
1 gallon (gal) = 4 quarts 4.54 litros

Líquidos (USA)

1 US liquid gill 0.118 litros
1 US liquid pint = 4 gills 0.473 litros
1 US liquid quart = 2 pints 0.946 litros
1 US gallon = 4 quarts 3.785 litros