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Pounds-force to Kilograms-force Converter

Convert pounds-force (lbf) to kilograms-force (kgf), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter a force, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
The unit you want the answer in. Swap exchanges the two units.
Result
0.45359237 kgf
nanonewtons
4,448,221,615.26 nN
micronewtons
4,448,221.61526 µN
millinewtons
4,448.22161526 mN
newtons
4.44822161526 N
kilonewtons
0.00444822161526 kN
meganewtons
4.44822161526 × 10⁻⁶ MN
grams-force
453.59237 gf
ounces-force
16 ozf
dynes
444,822.161526 dyn
poundals
32.1740485564 pdl

1 lbf = 0.45359237 kgf

Show the working
  1. 1 lbf = 0.45359237 kgf
  2. 1 × 0.45359237 = 0.45359237 kgf

How to convert pounds-force to kilograms-force

1 lbf = 0.45359237 kgf, so multiply by 0.45359237 to go from pounds-force to kilograms-force. Going the other way, 1 kgf = 2.20462262185 lbf.

kgf = lbf × 0.45359237
lbf = kgf × 2.20462262185

Worked example:

1 lbf = 0.45359237 kgf
5 × 0.45359237 = 2.26796185 kgf

Pounds-force to kilograms-force table

Pounds-forceKilograms-force
1 lbf0.45359237 kgf
2 lbf0.90718474 kgf
3 lbf1.36077711 kgf
4 lbf1.81436948 kgf
5 lbf2.26796185 kgf
6 lbf2.72155422 kgf
7 lbf3.17514659 kgf
8 lbf3.62873896 kgf
9 lbf4.08233133 kgf
10 lbf4.5359237 kgf
15 lbf6.80388555 kgf
20 lbf9.0718474 kgf
25 lbf11.33980925 kgf
30 lbf13.6077711 kgf
40 lbf18.1436948 kgf
50 lbf22.6796185 kgf
75 lbf34.01942775 kgf
100 lbf45.359237 kgf
250 lbf113.3980925 kgf
500 lbf226.796185 kgf
1000 lbf453.59237 kgf

About the units

Pounds-force (lbf)
Pounds-force, a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
Kilograms-force (kgf)
Kilograms-force, a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed