1 pound to kilograms

1 pound = 0.453592 kilograms

Rounded to a practical precision: 0.45 kg.

pounds

kilograms

How the calculation works

One pound is 0.453592 kilograms, so:

1 lb × 0.453592 = 0.453592 kg

Reversing it, 0.453592 kilograms ÷ 0.453592 returns 1 pounds.

Nearby values

Pounds	Kilograms
0.5 lb	0.226796 kg
1 lb	0.453592 kg
1.5 lb	0.680389 kg
2 lb	0.907185 kg
2.5 lb	1.13398 kg
3 lb	1.36078 kg

About these units

Pound (lb) — The international avoirdupois pound is exactly 0.45359237 kilograms and is the primary weight unit in the United States.

Kilogram (kg) — The kilogram is the SI base unit of mass, defined since 2019 in terms of the Planck constant.

Frequently asked questions

How many kilograms is 1 pound?

1 pound is 0.453592 kilograms.

How do I convert pounds to kilograms myself?

Multiply by 0.453592. To go back, divide by 0.453592 — or multiply by 2.20462.

Is this figure exact?

The conversion factor between the pound and the kilogram is fixed by definition. The figure above is rounded for readability; the converter carries full precision.

Convert other values

Full pounds to kilograms converter · All weight converters