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Conversions of many more force units
| Our physics teacher always said to us: One Newton is a bar of chocolate. 102 gram ≈ 1 Newton. |
| Weight is a) the force to a body in a gravitational field as the weight force, b) the mass of a physical body. |
Conversion of newton to kilogram
Not for physic professors and science teachers :-) Only for domestic use on Earth.
Force is not Mass!
1 N is the force of Earth's gravity on a mass of about 102 g = (1 / 9.81 kg).
| Simply enter the value to the left or the right side. The calculator works in both directions of the ↔ sign. |
The force conversion formulas |
| Since 1977 kgf and kilopond (unit symbol kp) are no longer the
permissible unit of force. It was formerly a base unit of the Technical
measurement system. Correct is now only N (pronounced Newton). 1 kilogram force (kgf) was the force of gravity, which is pushing a mass of 1 kg at one place in the world on the ground; calculated according to Newton's law force = mass × acceleration. Since the acceleration is dependent on the location, the weight force is varying. Usually, however, the standard acceleration of gravity is used. 1 kgf = 9.80665 newtons. |
| kg is a mass unit and newton is a force unit. Mass is called weight (in non-scientific affairs) F = m × g or m = F / g Gravity of Earth g = 9.80665 m/s² Mass m = 1 N / (9.80665 m/s²) = 1 kg × m/s² / (9.80665 m/s²) = 0.101972 kg = 101.972 g A mass m = 101.972 g has a weight force of F = 1 N. |
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Pressure p = F / A (force divided by area), force F = p × A (pressure times area), area A = F / p (force divided by pressure) |
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Definition: Kilogram The kilogram or kilogramme, (symbol: kg) is the SI base unit of mass. A gram is defined as one thousandth of a kilogram. Conversion of units describes equivalent units of mass in other systems. Definition: Newton In physics, the newton (symbol: N) is the SI unit of force, named after Sir Isaac Newton in recognition of his work on classical mechanics. It was first used around 1904, but not until 1948 was it officially adopted by the General Conference on Weights and Measures (CGPM) as the name for the mks unit of force. |
Force conversion chart
| To convert from | to | multiply by |
| dyn; dyn | newton; N | 1.0 × 10−5 |
| kilogram-force; kgf = kilopond kp | newton; N | 9.80665 |
| kilopond; kp = kilogram-force | newton; N | 9.80665 |
| kip; 1 kip = 1000 lbf | newton; N | 4.448222 × 103 |
| kip; 1 kip = 1000 lbf | kilonewton; kN | 4.448222 |
| ounce (avoirdupois)-force; ozf | newton; N | 2.780139 × 10−1 |
| poundal | newton ; N | 1.382550 × 10−1 |
| pound-force: lbf | newton; N | 4.448222 |
| pound-force per pound ; lbf/lb (thrust to mass ratio) | newton per kilogram; N/kg | 9.80665 |
| ton-force; 2000 lbf | newton; N | 8.896443 × 103 |
| ton-force; 2000 lbf | kilonewton; kN | 8.896443 |
| pound-force per foot; lbf/ft | newton per meter; N/m | 1.459390 × 10 |
| pound-force per inch; lbf/in | newton per meter; N/m | 1.751268 × 102 |
Some force conversion factors from non-SI units
| Unit | Symbol | Equivalent SI Value |
| dyne | dyn | 10.0 µN |
| grain-force | grf | 635.4602 µN |
| gram-force | gf | 9.80665 mN |
| poundal | pdl | 138.2550 mN |
| ounce-force (avdp) | ozf | 278.0139 mN |
| pound-force | lbf | 4.448222 N |
| kilogram-force | kgf | 9.80665 N |
| kilopond | kp | 9.80665 N |
| sthène | sthène | 1.0 kN |
| kip = 1 000 lbf | kip | 4.448222 kN |
| ton-force US = 2 000 lbf (short) | tonf US | 8.896443 kN |
| tonne-force = 1 000 kgf (metric) | tf | 9.80665 kN |
| ton-force UK = 2 240 lbf (long) | tonf UK | 9.964016 kN |
Force conversion chart
Sorted from small to large
| Name of Force unit, F | Symbol | Definition | Relation to SI unit newton, N |
| newton (SI unit) | N | ≡ kg·m/s² | - |
| atomic unit of force | au | ≡ me·α2·c2/a 0 | ≈ 8.238 722 241×10−8 N |
| dyne (cgs unit) | dyn | ≡ g·cm/s² | = 10−5 N = 10µN |
| gravet | - | ≡ g × 1 g | = 9.806 65 mN |
| poundal | pdl | ≡ 1 lb·ft/s² | = 0.138 254 954 376 N |
| ounce-force | ozf | ≡ g × 1 oz | = 0.278 013 850 953 781 2 N |
| pound-force | lbf | ≡ g × 1 lb | = 4.448 221 615 260 5 N |
| kilogram-force;kilopond; grave | kgf; kp | ≡ g × 1 kg | = 9.806 65 N |
| sthene (mts unit) | sn | ≡ 1 t·m/s² | = 1 kN |
| kip; kip-force | kip; kipf; klbf | ≡ g × 1000 lb | = 4.448 221 615 260 5 kN |
| ton-force US | tnf | ≡ g × 1 sh tn | = 8.896 443 230 521 kN |
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