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The decimetre (SI symbol: dm) is a unit of length in the metric system equal to 10 −1 metres ( 1 / 10 m = 0.1 m). To help compare different orders of magnitude , this section lists lengths between 10 centimetres and 100 centimetres (10 −1 metre and 1 metre).
10.16 cm = 1.016 dm — 1 hand used in measuring height of horses (4 inches) 12 cm = 1.2 dm — diameter of a Compact Disc (CD) (= 120 mm) 15 cm = 1.5 dm — length of a Bic pen with cap on; 22 cm = 2.2 dm — diameter of a typical soccer ball; 30.48 cm = 3.048 dm — 1 foot; 30 cm = 3 dm — typical school-use ruler length (= 300 mm)
The decimetre (or decimeter in American English; symbol: dm), is a unit of length in the International System of Units, equal to one tenth of a metre, ten centimetres, one hundred millimetres, and 3.937 inches. [1]
A value in decimal degrees to 5 decimal places is precise to 1.11 metres (3 ft 8 in) at the equator. Elevation also introduces a small error: at 6,378 metres (20,925 ft) elevation, the radius and surface distance is increased by 0.001 or 0.1%.
≡ 1 dm 3 [19] ≡ 0.001 m 3: load: ≡ 50 cu ft = 1.415 842 3296 m 3: ... ≡ One rpm equals one rotation completed around a fixed axis in one minute of time.
The solar flux unit is a unit of spectral irradiance equal to 10 −22 W⋅m −2 ⋅Hz −1 (100 yW⋅m −2 ⋅Hz −1). The nox (nx) is a unit of illuminance equal to 1 millilux ( 1 mlx ). The nit (nt) is a unit of luminance equal to one candela per metre squared ( 1 cd⋅m −2 ).
In both customary and imperial units, one foot comprises 12 inches, and one yard comprises three feet. Since an international agreement in 1959, the foot is defined as equal to exactly 0.3048 meters. Historically, the "foot" was a part of many local systems of units, including the Greek, Roman, Chinese, French, and English systems. It varied in ...
The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of 1 / 299 792 458 of a second, where the second is defined by a hyperfine transition frequency of caesium.