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Pound to Kilogram Converter

Convert Pound (lb) to Kilogram (kg) instantly. Free online weight conversion tool.

1 lb

0.453592 kg

1 kg = 2.204624 lb

Pound to Kilogram Conversion Table

Pound (lb)Kilogram (kg)
1 lb0.4536 kg
5 lb2.268 kg
10 lb4.5359 kg
25 lb11.3398 kg
50 lb22.6796 kg
100 lb45.3592 kg
250 lb113.398 kg
500 lb226.796 kg
1000 lb453.592 kg

How to Convert Pound to Kilogram

To convert Pound (lb) to Kilogram (kg), multiply the value by the conversion factor. 1 lb = 0.453592 kg.

Use our free online converter above for instant, accurate results. No signup required.

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Pound to Kilogram — FAQ

How accurate is the Pound to Kilogram conversion?

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The conversion uses an exact or high-precision factor sourced from international standards (BIPM/NIST). Results are computed with 64-bit floating-point arithmetic and displayed to up to 10 significant figures to minimize rounding errors for all practical purposes.

Can I convert multiple values at once?

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The conversion table above shows common values automatically. For bulk conversions, use the interactive weight converter where you can type any value and see the result instantly. The converter supports all units in the weight category, not just lb and kg.

Is this converter free to use?

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Yes. This converter is completely free with no account or sign-up required. It runs entirely in your browser and works on desktop, tablet, and mobile devices.

Where does the conversion factor between lb and kg come from?

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Conversion factors are sourced from definitions published by the International Bureau of Weights and Measures (BIPM) and the US National Institute of Standards and Technology (NIST). Many factors are exact treaty definitions, such as the inch being defined as exactly 2.54 centimeters.

What other weight units can I convert?

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The Weight converter supports all common units in this category. Use the interactive converter to explore all available units and switch between any pair instantly.