Kilogram-force to Newtons Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: To convert kilogram-force to newtons, multiply by 9.80665. For example, 10 kgf is 98.0665 N. One kilogram-force equals 9.80665 N.

Use the Kilogram-force to Newtons Converter

Kilogram-force to Newtons formula and what each symbol means

N = kgf × 9.80665

Symbols used in the formula
SymbolMeaning
kgfKilogram-force
NNewton

Kilogram-force to Newtons examples

1 kgf

1 kgf × 9.80665 = 9.80665 N.

10 kgf

10 kgf × 9.80665 = 98.0665 N.

100 kgf

100 kgf × 9.80665 = 980.665 N.

Kilogram-force compared with Newtons

One kgf is 9.807 times as large as one N, so your number gets bigger when you convert kilogram-force to newtons and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.

About kilogram-force and newtons

Kilogram-force (kgf): The weight of one kilogram at standard gravity, 9.80665 N. Newton (N): The SI unit of force.

Where kilogram-force to newtons conversions are used

Physics problems with Newton’s second law work in newtons. Engineering loads and structural calculations use newtons or kilonewtons.

How to calculate Kilogram-force to Newtons step by step

  1. Enter the value in kgf (the starting unit).
  2. Multiply by 9.80665, because 1 kgf = 9.80665 N.
  3. The product is the value in N. To go back, divide by 9.80665 or multiply by 0.1019716.

Popular force conversions

How to read your Kilogram-force to Newtons result

Quick estimate: multiply by about 10 to get newtons from kilogram-force; this is within 2.0% of the exact factor. The newton is the force that gives 1 kg an acceleration of 1 m/s².

KILOGRAM-FORCENEWTONS
19.80665
219.6133
549.03325
1098.0665
20196.133
50490.3325
100980.665
1,0009,806.65

Newtons to Kilogram-force: quick table

NEWTONSKILOGRAM-FORCE
10.1019716
50.5098581
101.019716
252.549291
505.098581
10010.19716
25025.49291
50050.98581

Common mistakes when calculating Kilogram-force to Newtons

  • Rounding g to 9.8 when high precision is needed.
  • Dividing when you should multiply: from kgf to N multiply by 9.80665; from N to kgf divide by 9.80665.

Kilogram-force to Newtons FAQ

How many N are in 1 kgf?

1 kgf equals 9.80665 N.

How many kgf are in 1 N?

1 N equals 0.1019716 kgf.

Is 1 kgf = 9.80665 N an exact conversion?

Yes. The kilogram-force and the newton are both defined exactly in SI terms, so the ratio has no measurement uncertainty; 9.80665 is just that ratio shown to 7 significant figures.

What is a kilogram-force (kgf)?

The weight of one kilogram at standard gravity, 9.80665 N.

How can I estimate kilogram-force to newtons in my head?

Quick estimate: multiply by about 10 to get newtons from kilogram-force; this is within 2.0% of the exact factor.

What is 500 kgf in newtons?

500 kgf = 4,903.325 N (since 500 × 9.80665).

What is 15 kgf in newtons?

15 kgf = 147.0998 N (since 15 × 9.80665).

What is 75 kgf in newtons?

75 kgf = 735.4987 N (since 75 × 9.80665).

How many decimals should I keep when converting kgf to N?

Match the precision of your original measurement. For example, 98.0665 N rounds to 98.1 N at 3 significant figures; keep more digits only for engineering or scientific work.

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Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors