| mg | i- milligram
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| carat | i- carat (metric)
- Unit of mass used for diamonds and other precious stones. Jewelers everywhere now use a metric carat defined in 1907 to be exactly 200 milligrams.
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| g | i- gram
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| kg | i- kilogram
- Base unit of mass in the SI and MKS versions of the metric system.
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| quintal | i- quintal
- Metric unit of mass equal to 100 kilograms or approximately 220.4623 pounds.
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| t | i- ton (metric)
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| u | i- atomic unit mass
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Unit of mass used by chemists and physicists for measuring the masses of atoms and molecules.
Careful experiments have measured the size of this unit;
the currently accepted value (1998) is 1.660 538 73 x 10-24 grams.
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| gr | i- grain
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The UK- and US-sytem of apothecaries weight units is based on the grain:
1 scruple = 20 grains
1 (apoth) drachm (UK) = 3 scruples
1 (ap) dram (US) = 3 scruples
1 apoth ounce (UK) = 8 drachms
1 ap ounce (US) = 8 drachms
[1 grain = (1/7000) lb]
For more info see pound
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| dram | i- dram
- Unit of weight in the traditional avoirdupois system equal to 1/16 ounce or 1/256 pound
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| oz | i- ounce
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The UK- and US-system of avoirdupois weight units is based on the pound lb:
1 pound = 7000 grains
1 ounce = 16 drams
1 pound = 16 ounces
1 stone = 14 pounds
1 quarter = 2 stones
1 hundredweight (UK) = 4 quarters
1 ton (UK) = 20 hundredweights (UK)
For more info see pound
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| lb | i- pound
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In 1959 the national laboratory of Australia, Canada, Great Brittan, New Sealand, USA and South Africa
have decided to define the weight of the pound for precision measurements as:
1 lb = 0,453 59237 kg
Before the
Uklb = 0,453 592 338 kg and the
Uslb = 0,453 592 427 7 kg
For more info see ounce
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| stone | i- stone
- Traditional British unit of weight. The stone was standardized at 14 pounds avoirdupois or approximately 6.350 29 kilograms. The stone equal exactly 1/2 quarter or 1/8 hundredweight.
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| Quarter | i- Quarter
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| hundredweight US | i- hundredweight US
- The U.S. hundredweight is equal to 100 pounds. British version is often called the long hundredweight and the American is called the short hundredweight or cental.
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| Hundredweight UK | i- Hundredweight UK
- Traditional unit of weight equal to 1/20 ton UK or 112 pounds avoirdupois, about 50.8023 kg
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| Uston | i- USton
- 1 USton = 1 short (of nett) ton = 2000 lb
For more info see pound
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| Ukton | i- UKton
- 1 UKton = 1 long (of gross) ton (US) = 2240 lb
For more info see pound
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