Pound to Kilogram Converter (lb to kg)

How to Convert Pound to Kilogram

Formula: Kilogram = Pound × 0.45359237

Example: 1 lb = 0.45359237 kg

You can also use the interactive converter above. Simply enter any Pound value and the equivalent Kilogram value will appear instantly. Click the ⇄ button to reverse the conversion.

Beyond the calculator above, it helps to understand what these two units actually represent and where you will run into them in everyday life.

Step-by-step example — Convert 10 lb to kg:

What is Pound and Kilogram?

A Pound (lb) is a US customary and imperial unit of mass, defined as exactly 0.45359237 kilograms.

A Kilogram (kg) is the SI base unit of mass, defined via the Planck constant. It is the standard everyday mass unit almost everywhere outside the US.

Real World Uses of Pound to Kilogram Conversion

• Pound: Commonly used for stating body weight in the US, UK and a few other countries.
• Kilogram: Commonly used for pricing fruits, vegetables and groceries by weight.
• Pound: Commonly used on US food packaging and for stating body weight in the United States and UK.
• Kilogram: Commonly used as the standard unit for body weight on medical scales worldwide.

Frequently Asked Questions

What is the formula to convert Pound to Kilogram?

The formula is: Kilogram = Pound x 0.45359237. Multiply any Pound value by 0.45359237 to get the equivalent in Kilogram.

What is 1 Pound in Kilogram?

1 lb = 0.45359237 kg.

How many Pound are in 1 Kilogram?

1 kg = 2.20462262 lb.

Is Pound bigger or smaller than Kilogram?

Pound is smaller than Kilogram. 1 Kilogram = 2.20462262 lb.

What is 150 lb in kg?

150 lb = 68.0388555 kg.

What is 70 kg in lb?

70 kg = 154.3235835 lb.

Where does the pound's abbreviation 'lb' come from?

The abbreviation 'lb' comes from libra, the Latin word for the Roman unit of weight the pound was historically based on.