Electron rest mass
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Lunar mass
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Picul
Picul is the English word for a traditional Chinese measurement of weight called dàn (擔) in Mandarin Chinese or tam (擔) in Cantonese language. One picul is 100 catty. In Hong Kong, one picul is equivalent to 60.478982 kilogramme, and in ordinance 22 of 1884, one picul is 133+⁄3 lb. avoir. The picul... -
Mace
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Pennyweight
A pennyweight (abbreviated dwt) is a unit of mass that is equal to 24 grains, 1/240 of a troy pound, 1/20 of a troy ounce, approximately 0.055 ounces, and approximately 1.555 grams. Historically, a British penny's weight was literally, as well as monetarily, 1/240 of a troy pound of sterling silver... -
Stone
The stone is a unit of measure, which in practice is usually a mass of about 6.35 kilograms. When it ceased to be legal for trade in United Kingdom in 1985, it was defined in British legislation as being a weight or mass [sic] equal to 14 [avoirdupois] pounds. It was also formerly used in several... -
Catty
Catty is the English word for a traditional Chinese unit of mass called a jīn (Chinese characters: 斤) in Mandarin Chinese (or gan in Cantonese, kin or kun in Minnan , kin in Japanese and 'cân' in Vietnamese) used across East Asia. The English word catty originated from the Malay word kati. The kati... -
Milligram
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Atomic mass unit
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Cental
In Imperial units, a hundredweight (“long”) is defined as 112 pounds avoirdupois, or 8 stone, or four quarters (50.80234544 kg). This is so close to 50 kg that the transition to metric equivalents has been easy.In U.S. customary units, a hundredweight (“short”) is defined as 100 pounds (equivalent... -
Planck mass
In physics, the Planck mass (mP) is the unit of mass in the system of natural units known as Planck units. It is defined so that where c is the speed of light in a vacuum, G is the gravitational constant, and ħ is the reduced Planck constant. Particle physicists and cosmologists often use the...