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The newton (symbol: N) is the SI unit of force. It is named after Sir Isaac Newton in recognition of his work on classical mechanics.
Definition
A newton is the amount of force required to accelerate a mass of one kilogram at a rate of one meter per second squared.
- 1 N = 1 kg·m/s2
Conversions
Units of force
|
Newton
(SI unit) |
Dyne |
Kilogram-force
(Kilopond) |
Pound-force |
Poundal |
| 1 N |
= 1 kg·m/s² |
= 105 dyn |
≈ 0.10197 kp |
≈ 0.22481 lbf |
≈ 7.2330 pdl |
| 1 dyn |
= 10−5 N |
= 1 g·cm/s² |
≈ 1.0197×10−6 kp |
≈ 2.2481×10−6 lbf |
≈ 7.2330×10−5 pdl |
| 1 kp |
= 9.80665 N |
= 980665 dyn |
= gn·(1 kg) |
≈ 2.2046 lbf |
≈ 70.932 pdl |
| 1 lbf |
≈ 4.448222 N |
≈ 444822 dyn |
≈ 0.45359 kp |
= gn·(1 lb) |
≈ 32.174 pdl |
| 1 pdl |
≈ 0.138255 N |
≈ 13825 dyn |
≈ 0.014098 kp |
≈ 0.031081 lbf |
= 1 lb·ft/s² |
| The value of gn as used in the official definition of the kilogram-force is used here for all gravitational units. |
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This SI unit is named after Isaac Newton. As for all SI units whose names are derived from the proper name of a person, the first letter of its symbol is uppercase (N). But when an SI unit is spelled out, it should always be written in lowercase (newton), unless it begins a sentence or is the name "degree Celsius".
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Non-SI units of force
