Newtons to kilograms-force
Multiply newtons by 0.101972 to get kilograms-force.
100 N = 10.1972 kgf
How to convert newtons to kilograms-force
The kilogram-force is the force of one kilogram under standard gravity, exactly 9.80665 N. The newton is the SI unit of force — one kg accelerated at one m/s².
Worked example — 100 N: 100 × 0.101972 = 10.1972 kgf.
Newtons to kilograms-force table
| Newtons | Kilograms-force |
|---|---|
| 1 N | 0.101972 kgf |
| 5 N | 0.509858 kgf |
| 10 N | 1.0197 kgf |
| 50 N | 5.0986 kgf |
| 100 N | 10.1972 kgf |
| 200 N | 20.3943 kgf |
| 500 N | 50.9858 kgf |
| 1,000 N | 101.9716 kgf |
| 5,000 N | 509.8581 kgf |
Reverse and related
About newtons and kilograms-force
Newton (N)
1 N = 0.101972 kgfDefinition. The SI unit of force — one kg accelerated at one m/s²
History and origin
The newton is the SI unit of force, named after Isaac Newton, defined as the force that accelerates one kilogram at one metre per second squared. It replaced a patchwork of older force units.
Current use
Newtons are used in physics and engineering to state loads and forces.
Source: NIST SP 811, App. B (force). lbf and kgf are exact via the pound/kilogram and standard gravity 9.80665 m/s² (CGPM 1901); SP 811 prints them rounded
Kilogram-force (kgf)
1 kgf = 9.8067 NDefinition. The force of one kilogram under standard gravity, exactly 9.80665 N
History and origin
The kilogram-force, also called the kilopond, is the weight of one kilogram under standard gravity, exactly 9.80665 newtons. It was common before the newton became standard.
Current use
Kilograms-force still appear in some engineering and in torque specifications outside the United States.
Source: NIST SP 811, App. B (force). lbf and kgf are exact via the pound/kilogram and standard gravity 9.80665 m/s² (CGPM 1901); SP 811 prints them rounded
Where people use this
Newtons: physics, engineering loads. Kilograms-force: engineering outside the US, torque specs. 9.80665 N is exactly 1 kgf.
Every value is carried to full double precision; the display is rounded.
Both units are defined in NIST SP 811, App. B (force). lbf and kgf are exact via the pound/kilogram and standard gravity 9.80665 m/s² (CGPM 1901); SP 811 prints them rounded.
Questions people ask
How many kgf is 9.80665 N?
9.80665 newtons is exactly 1 kilogram-force.
How many N in a kilogram-force?
One kilogram-force is 9.80665 N.
How many kgf is 100 N?
100 N is about 10.2 kgf.