This converter turns kilograms-force into newtons instantly, using the exact factor 1 kilogram-force = 9.80665 newtons. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
The force gravity exerts on one kilogram — a legacy metric unit. The SI unit: the force that accelerates one kilogram at one metre per second squared.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
kilograms-force- The amount you are converting, measured in kilograms-force
9.80665- The exact number of newtons in one kilogram-force
newtons- The converted result
How it works, step by step
- Enter the number of kilograms-force you want to convert.
- The value is multiplied by 9.80665, the exact conversion factor.
- The result is displayed in newtons, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 kilograms-force
Multiply 5 by 9.80665. That gives 49.0332 newtons. A quick sanity check: one kilogram-force is larger than one newton, so the number should get bigger — and it does.
Converting 72 kilograms-force
72 × 9.80665 = 706.0788 newtons. Working backwards, 706.0788 ÷ 9.80665 returns 72 kilograms-force, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many newtons are in one kilogram-force?
Exactly 9.80665. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert kilograms-force to newtons?
Newtons = kilograms-force × 9.80665. To reverse it, divide instead: kilograms-force = newtons ÷ 9.80665, which is the same as multiplying by 0.1019716213.
Is the kilogram-force bigger than the newton?
Yes. One kilogram-force equals 9.80665 newtons, so it is the larger unit.
Why does my answer differ slightly from other kilogram-force to newtons converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a kilogram-force?
The force gravity exerts on one kilogram — a legacy metric unit.
What is a newton?
The SI unit: the force that accelerates one kilogram at one metre per second squared.
Kilograms-Force to newtons reference table
| Kilograms-Force | Newtons |
|---|---|
| 0.5 kgf | 4.9033 N |
| 1 kgf | 9.8066 N |
| 2 kgf | 19.6133 N |
| 3 kgf | 29.42 N |
| 5 kgf | 49.0332 N |
| 10 kgf | 98.0665 N |
| 15 kgf | 147.0998 N |
| 20 kgf | 196.133 N |
| 25 kgf | 245.1662 N |
| 50 kgf | 490.3325 N |
| 75 kgf | 735.4987 N |
| 100 kgf | 980.665 N |
| 250 kgf | 2,451.66 N |
| 500 kgf | 4,903.32 N |
| 1000 kgf | 9,806.65 N |
Exact factor: 1 kilogram-force = 9.80665 newtons. Values rounded for display.