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A decametre (International spelling as used by the International Bureau of Weights and Measures and by most English speaking countries, [1] [2] United States spelling dekameter or decameter [3] [4]), symbol dam ("da" for the SI prefix deca-, [1] "m" for the SI unit metre), is a unit of length in the International System of Units (SI) equal to ten metres.
US spelling: cubic hectometer: 1.0 hm 3 (35,000,000 cu ft) cubic decametre: dam3 dam 3: US spelling: cubic dekameter: 1.0 dam 3 (35,000 cu ft) cubic metre: m3 m 3: US spelling: cubic meter one kilolitre 1.0 m 3 (35 cu ft) cubic decimetre: dm3 dm 3: US spelling: cubic decimeter one litre 1.0 dm 3 (61 cu in) cubic centimetre: cm3 cm 3: US ...
Length; system unit code (other) symbol or abbrev. notes conversion factor/m combinations SI: gigametre: Gm Gm US spelling: gigameter: 1.0 Gm (620,000 mi) megametre: Mm Mm US spelling: megameter: 1.0 Mm (620 mi) kilometre: km km US spelling: kilometer: 1.0 km (0.62 mi) km mi; hectometre: hm hm US spelling: hectometer: 1.0 hm (330 ft) decametre ...
US spelling: cubic hectometer: 1.0 hm 3 (35,000,000 cu ft) cubic decametre: dam3 dam 3: US spelling: cubic dekameter: 1.0 dam 3 (35,000 cu ft) cubic metre: m3 m 3: US spelling: cubic meter one kilolitre 1.0 m 3 (35 cu ft) cubic decimetre: dm3 dm 3: US spelling: cubic decimeter one litre 1.0 dm 3 (61 cu in) cubic centimetre: cm3 cm 3: US ...
11 cm = 1.1 dm – length of an average potato in the US; 13 cm = 1.3 dm – body length of a Goliath birdeater; 15 cm = 1.5 dm – approximate size of largest beetle species; 19 cm = 1.9 dm – length of a banana; 26.3 cm = 2.6 dm – length of average male human foot; 29.98 cm = 2.998 dm – distance light in vacuum travels in one nanosecond
For example, driving distances are normally given in kilometres (symbol km) rather than in metres. Here the metric prefix 'kilo-' (symbol 'k') stands for a factor of 1000; thus, 1 km = 1000 m. The SI provides twenty-four metric prefixes that signify decimal powers ranging from 10 −30 to 10 30, the most recent being adopted in 2022.
When applying prefixes to units of volume, which are expressed in units of length cubed, the cube operators are applied to the unit of length including the prefix. An example of converting cubic centimetre to cubic metre is: 2.3 cm 3 = 2.3 (cm) 3 = 2.3 (0.01 m) 3 = 0.0000023 m 3 (five zeros). [18]: 143
Unit of measure cubic metre litre Reference size Usage 1 cubic metre = 1 = 1000: base unit in SI 1 barrel = 0.158 987 294 928 = 158.987294928 = 42 US gallons = 9,702 cubic inches: e. g. for oil: 1 cubic foot = 0.028 316 846 592 = 28.316864592 = 1,728 cubic inches: 1 cubic decimetre = 0.001 = 1: 1 litre = 0.001 = 1: 1 gallon (US) = 0.003 785 411 ...