1 decimetre
From Infogalactic: the planetary knowledge core
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A clickable mosaic of objects
at scales within direct human experience, from the micrometric (10−6 m, top left) to the multi-kilometric (105 m, bottom right).
at scales within direct human experience, from the micrometric (10−6 m, top left) to the multi-kilometric (105 m, bottom right).
An adult human foot is about 28 centimetres long.
To help compare different orders of magnitude this page lists lengths between 10 centimetres and 100 centimetres (10−1 metre and 1 metre).
Distances shorter than 10 centimetres
Contents
Conversions
10 centimetres (abbreviated to 10 cm) is equal to:
- 1 decimetre (dm), a term not in common use
- 100 millimetres
- 3.9 inches
- a side of a square of area 0.01 m2[note 1]
- the edge of a cube with a volume of 1×10−3[note 1] (one litre)
Wavelengths
- 10 cm = 1.0 dm[note 1] – wavelength of the highest UHF radio frequency, 3 GHz
- 12 cm = 1.2 dm – wavelength of the 2.45 GHz ISM radio band
- 21 cm = 2.1 dm – wavelength of the 1.4 GHz hydrogen emission line, a hyperfine transition of the hydrogen atom
- 100 cm = 10 dm – wavelength of the lowest UHF radio frequency, 300 MHz
Human-defined scales and structures
- 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 Association football (soccer ball)
- 30.48 cm = 3.048 dm – 1 foot (measure)
- 30 cm = 3 dm – typical school-use ruler length (= 300 mm)
- 60 cm = 6 dm – standard depth (front to back) of a domestic kitchen worktop in Europe (= 600 mm)
- 90 cm = 9 dm – average length of a rapier, a fencing sword[1]
- 91.44 cm = 9.144 dm – one yard (measure)
Nature
- 10 cm = 1 dm – diameter of the human cervix upon entering the second stage of labour[citation needed]
- 15 cm = 1.5 dm – approximate size of largest beetle species[citation needed]
- 29 cm = 2.9 dm – length of average human foot[citation needed]
- 29.98 cm = 2.998 dm – distance light travels in one nanosecond
- 31 cm = 3.1 dm – wingspan of largest butterfly species Ornithoptera alexandrae[citation needed]
- 50 to 65 cm = 5–6.5 dm – a pizote's tail[citation needed]
- 66 cm = 6.6 dm – length of the longest pine cones (produced by the Sugar pine[2])
See also
Notes
- ↑ 1.0 1.1 1.2 m is an abbreviation of metre; cm of centimetre; dm of decimetre; m2 is short for square metre; m3 is short for cubic metre
