Force Calculator
F = ma, in newtons, kilograms-force and pounds-force.
Work out Force. F = ma, in newtons, kilograms-force and pounds-force. States its idealisation instead of hiding it.
Standard gravity by definition. Local values run 9.78 to 9.83.
Force (newtons)
98.066
10 kgf · 22.05 lbf
F = ma. A newton is small — roughly the weight of a medium apple — which is why the same force reads as 98.1 N but only 10 kgf. Mass and weight are different quantities: your mass is the same on the Moon, your weight is a sixth.
How the Force Calculator works
Force is mass times acceleration. A newton is small — roughly the weight of a medium apple — so the same figure is also given in kilograms-force and pounds-force, which is how scales and specifications usually report it.
Also known as: f = ma calculator · newtons calculator · how to calculate force · force formula calculator
Frequently asked questions
How do I calculate force?
Multiply mass by acceleration. 10 kg accelerating at 1 g weighs 98.07 newtons.
What is the difference between mass and weight?
Mass is how much matter there is; weight is the force gravity exerts on it. Your mass is unchanged on the Moon, your weight is about a sixth.
How many newtons is a kilogram?
A kilogram is not a force, but a kilogram-force — the weight of 1 kg under standard gravity — is 9.80665 newtons.
How do I convert newtons to pounds?
Multiply by 0.2248. So 100 N is 22.48 pounds-force.
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