Force Converter
Convert force between newtons, kilonewtons, pound-force, kilogram-force, and more. Calculates in your browser.
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About force conversions
Enter a value and choose the units to convert between. Each force unit is defined against a single base unit, so any pair lines up consistently, the table shows your value in every force unit at once.
What this does
A force converter changes a force value between units — newtons, kilonewtons, dynes, kilogram-force, gram-force, pound-force, and ounce-force.
How to use it
- Enter a value and pick its unit.
- Choose the unit to convert to.
- Read the converted result instantly.
- Swap the units to reverse the conversion.
How it works
Each value is converted to newtons — the SI unit of force — first, then to the target unit. One kilogram-force is the weight of a kilogram under standard gravity, 9.80665 N.
N = lbf × 4.44822
Understanding your result
The newton is the SI unit of force; the gravitational units (kilogram-force, pound-force) are simply the weight of that mass under standard gravity, which is why they convert by the 9.80665 factor. Keep force (newtons) distinct from mass (kilograms): a kilogram-force is a force, a kilogram is a mass.
Example
One pound-force is about 4.448 newtons, so 100 lbf is about 444.8 N.
Sources & methodology
Last updated .
Frequently asked questions
How many newtons are in a pound-force?
One pound-force is about 4.448 newtons, so the value in newtons is always larger.
What is the difference between kilogram-force and kilogram?
A kilogram is a unit of mass; a kilogram-force is the force that mass exerts under standard gravity (9.80665 N). One is mass, the other is force.
Is my data stored?
No. Everything is calculated locally in your browser.
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