Kilograms to Pounds Converter

About the kg to lb calculation

One kilogram is exactly 2.2046 pounds, so converting between them is a single multiplication. Enter any value above and the result updates as you type. The SI base unit of mass, and how bodyweight is quoted in most of the world. The everyday US weight unit. Defined as exactly 0.45359237 kg since 1959.

Formula

lb = kg × 2.2046

1 kg = 2.2046 lb
1 lb = 0.453592 kg

Worked example

To convert 70 kg, multiply by 2.2046: 70 × 2.2046 = 154.324 lb.

Frequently asked questions

How many pounds are in a kilogram?

There are 2.2046 pounds in one kilogram. To convert any amount, multiply the number of kilograms by 2.2046.

How do I convert pounds back to kilograms?

Divide instead of multiplying, or equivalently multiply by 0.453592. One pound is 0.453592 kilograms.

Is this conversion exact?

Yes. Since the international agreement of 1959, the relationship between kilograms and pounds is defined exactly rather than measured, so the only rounding here is in how many decimal places we show.

Where is each of these units used?

Kilograms: the SI base unit of mass, and how bodyweight is quoted in most of the world. Pounds: the everyday US weight unit. Defined as exactly 0.45359237 kg since 1959.

Sources

• NIST Special Publication 811 — Guide for the Use of the International System of Units