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Mass or Weight

  1. Metric Units

    1 tonne = 1000 kilograms
    1 kilogram = 2.21 pounds (approx.)
  2. Imperial Units

    1 ton = 2240 pounds
    1 pound = 0.45 kilogram (approx.)
    1 ounce = 1/16 pound
  3. Chinese Units

    1 picul (tam) = 100 catties
    1 catty (kan) = 0.61 kilogram (approx.)
    1 tael (leung) = 1/16 catty
    1 mace (tsin) = 1/160 catty
    1 candareen (fan) = 1/1600 catty

Length

  1. Metric Units

    1 kilometre = 1000 metres
    1 metre = 3.28 feet (approx.)
  2. Imperial Units

    1 mile = 1760 yards
    1 yard = 0.91 metre (approx.)
    1 foot = 1/3 yard
    1 inch = 1/36 yard
  3. Chinese Units

    1 chek = 0.37 metre (approx.)
    1 tsun = 0.1 chek
    1 fan = 0.1 tsun

Area

  1. Metric Units

    1 hectare = 100 ares
    1 are = 100 square metres
    1 square metre = 10.76 square feet (approx.)
    1 square decimeter = 0.01 square metre
  2. Imperial Units

    1 square mile = 640 acres
    1 acre = 4840 square yards
    1 square yard = 0.84 square meter (approx.)
    1 square foot = 1/9 square yard
    1 square inch = 1/144 square foot

Volume

  1. Metric Units

    1 cubic metre = 1000 cubic decimetres
    1 cubic decimetre = 1 litre
    1 litre = 0.04 cubic foot (approx.)
  2. Imperial Units

    1 cubic yard = 27 cubic foot
    1 cubic foot = 28.32 litres (approx.)
    1 cubic inch = 1/1728 cubic foot

Capacity

  1. Metric Units

    1 litre = 0.22 gallons (approx.)
  2. Imperial Units

    1 gallon = 4.55 litres (approx.)

Units of Measurement Commonly Used and the Conversion Factors