Weight is measured in ounces and pounds (avoirdupois) as in the U.S. Volume is measured in Imperial gallons, quarts, pints, and fluid ounces.

Imperial units, units of measurement of the British Imperial System, the official system of … Ancient Roman liquid measures Roman unit Equal to Metric Imperial US fluid ligula 1 ⁄ 288 congius 11.4 mL 0.401 fl oz 0.385 fl oz cyathus 1 ⁄ 72 congius 45 mL 1.58 fl oz 1.52 fl oz acetabulum 1 ⁄ 48 congius 68 mL 2.39 fl oz 2.30 fl oz quartarius 1 ⁄ 24 congius 136 mL 4.79 fl oz 4.61 fl oz hemina or cotyla 1 ⁄ 12 congius 273 mL 9.61 fl oz

Metric weight units are based around the weight of respective metric volumes of water. The Imperial gallon was originally defined as 10 pounds (4.5359 kg) of water in 1824, and refined as exactly 4.54609 litres in 1985. In Imperial units …units of measurement of the British Imperial System, the traditional system of weights and measures used officially in Great Britain from 1824 until the adoption of the metric system beginning in 1965.The United States Customary System of weights and measures is derived from the British Imperial System.Imperial units… Read More

Traditional British measures distinguish between weight and volume. For example, a liter of water weighs one kilogram. Imperial / American measurements. Weight tables. METRIC EQUIVALENTS AVOIRDUPOIS OR COMMERCIAL WEIGHT; 1 long ton = 1.016 metric ton = 1016 kilograms: 1 short tun = 0.9072 metric ton = 907.2 kilograms: 1 pound av.

Precious metals are normally measured in "troy" units (troy pounds and troy ounces), please do not confuse these with the standard measurements. Weight conversion calculator for metric and imperial units including Kilograms, ounces and Pounds.