How do I convert newtons to kg?
Type a value in either box, and the answer shows it in the other unit as you type.
- Kilograms (kg)
- 0.101972
1 N is the weight of 0.101972 kg at standard gravity.
Kilograms (kg): 0.101972. 1 N is the weight of 0.101972 kg at standard gravity.
Kilograms (kg) by newtons (N)
How to calculate
Converts newtons (N) to kilograms (kg) and back, with the exact unit definitions.
Example with the default inputs (Newtons (N) 1): 1 N is the weight of 0.101972 kg at standard gravity.
Formula: kg = N × 0.101971621298 (the same as N ÷ 9.80665)
- Kilograms here are the mass that weighs this force under standard gravity, 9.80665 m/s² exactly (NIST SP 811): kg = N ÷ 9.80665, the size of a kilogram-force (kgf).
- Exact on the typed decimals: at most 6 decimal places (6 significant digits below 0.0001), rounded half up; an answer of 1 billion or more shows at most 15 significant digits.
Worked examples
Each example is checked against the calculator on every build.
- Newtons (N) 1 gives Kilograms (kg) 0.101972.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Newtons (N) 9.80665 gives Kilograms (kg) 1.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Kilograms (kg) 1 gives Newtons (N) 9.80665.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
Other questions people ask
Can you convert newtons to kg?
Only through gravity: a newton is a force and a kilogram is a mass. A mass m weighs F = m × g, so m = F ÷ g. With standard gravity, 9.80665 m/s² exactly (NIST SP 811), 1 N is the weight of 0.101972 kg.
How do I convert newtons to kg?
Divide by 9.80665: kg = N × 0.101971621298 (the same as N ÷ 9.80665). For example, 100 N ÷ 9.80665 = 10.197162 kg.
How many newtons is 1 kg?
9.80665 N, the weight of 1 kg at standard gravity. NIST SP 811 calls this force a kilogram-force (kgf): 1 kgf = 9.80665 N exactly.
What if I use g = 9.8 or 9.81?
The mass changes a little: 100 N ÷ 9.81 = 10.19368 kg and 100 N ÷ 9.8 = 10.204082 kg, against 10.197162 kg with standard gravity. This converter uses 9.80665 m/s², the standard value in NIST SP 811.
How do I convert kg back to newtons?
Multiply by 9.80665, or type the kilograms into the second box and the converter works it out. 10 kg weighs 98.0665 N at standard gravity.