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📏 Pounds-force to Kilograms-force Converter

Convert pounds-force (lbf) to kilograms-force (kgf) instantly, with the formula, a worked example and a conversion table.

Quick answer: 1 pound-force (lbf) = 0.45359237 kilograms-force (kgf). Formula: kgf = lbf × 0.45359237.

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Pounds-force to Kilograms-force Converter inputs

Result

1 lbf =

0.45359237 kgf

kgf = lbf × 0.45359237

1 pound-force = 0.45359237 kgf · kgf to lbf

Pounds-force to Kilograms-force conversion table

Pounds-force (lbf)Kilograms-force (kgf)
0.1 lbf0.045359237 kgf
0.5 lbf0.22679618 kgf
1 lbf0.45359237 kgf
2 lbf0.90718474 kgf
3 lbf1.3607771 kgf
5 lbf2.2679619 kgf
10 lbf4.5359237 kgf
20 lbf9.0718474 kgf
25 lbf11.339809 kgf
50 lbf22.679619 kgf
100 lbf45.359237 kgf
1,000 lbf453.59237 kgf

Other force conversions

lbf to Nlbf to kNlbf to kgflbf to dyn

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How to convert pounds-force to kilograms-force

Multiply the number of pounds-force by 0.45359237 to get kilograms-force: kgf = lbf × 0.45359237.

Example: 5 lbf = 2.2679619 kgf.

The pound-force (lbf) and the kilogram-force (kgf) are both units of force. Need the opposite direction? Use the kgf to lbf converter.

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Metric and imperial units

The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.

Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.

This converter covers 18 categories and 106 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure, power, angle, force, torque, frequency, flow rate, illuminance, density.

Frequently asked questions

How many kilograms-force are in a pound-force?

1 pound-force = 0.45359237 kilograms-force.

How do I convert pounds-force to kilograms-force?

Use the formula kgf = lbf × 0.45359237. For example, 5 lbf = 2.2679619 kgf.

How do I convert kilograms-force back to pounds-force?

1 kilogram-force = 2.2046226 pounds-force. Use the kgf to lbf converter linked on this page.

Are these conversions exact?

Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.