How much force is that in other units?
Convert between newtons, kilonewtons, kilogram-force, pound-force, kips, dynes and poundals.
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Result
444.8 N
100 pounds-force is about 444.8 newtons
- The other way round: 1 N ≈ 0.2248 lbf.
In all units
- Newtons
- 444.8 N
- Kilonewtons
- 0.4448 kN
- Dynes
- 44,480,000 dyn
- Kilograms-force
- 45.36 kgf
- Pounds-force
- 100 lbf
- Ounces-force
- 1,600 ozf
- Kips
- 0.1 kip
- Poundals
- 3,217 pdl
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Convert between newtons, kilonewtons, kilogram-force, pound-force, kips, dynes and poundals.
How to use
- Type the force you want to convert.
- Choose the units to convert from and to. Use the swap button to flip them.
How it works
Force is mass times acceleration. The SI unit is the newton (N): the force that speeds up one kilogram by one metre per second every second. Every unit here is converted through newtons.
Kilogram-force and pound-force are the weight of one kilogram or one pound under standard gravity, 9.80665 m/s². So 1 kgf = 9.80665 N exactly and 1 lbf = 0.45359237 × 9.80665 ≈ 4.4482 N. A kip is 1,000 lbf, a dyne is 0.00001 N and a poundal accelerates one pound by one foot per second squared.
The definitions come from the BIPM SI Brochure and NIST Special Publication 811. Real weight varies a little with place, because gravity does; these units use the standard value.
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Frequently asked questions
How many newtons is 1 kg?
A kilogram is a mass, not a force. Its weight under standard gravity is 1 kgf = 9.80665 N.
How many newtons is a pound-force?
About 4.4482 N.
What is a kip?
A kip (kilopound) is 1,000 pound-force, about 4.448 kN. American structural engineers use it.
How many newtons are in a kilonewton?
Exactly 1000 N. Divide a force in newtons by 1000 to express it in kN.
Does a force conversion depend on local gravity?
No. kgf and lbf use fixed standard gravity in their definitions. The actual weight of a mass can change with gravity, but the unit conversion does not.
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