Pounds to Kilograms Converter
Convert pounds to kilograms instantly online. Enter any weight in pounds and get the exact kilogram equivalent — useful for fitness, travel, medical records, and international communication.
Pounds to Kilograms Converter
Use this converter when you need to express a weight in metric units — for doctor visits, gym equipment calibrated in kg, international shipping, or understanding a weight listed in kilograms.
Quick Reference Table
About the Pounds to Kilograms Converter
The pound (lb) is the primary unit of mass in the US customary and British imperial systems. Most of the world uses kilograms, the SI base unit of mass. The conversion factor is 1 lb = 0.45359237 kg exactly (defined by international agreement). This converter uses that precise factor to give you accurate results to up to 6 significant figures.
When to use this tool
Use this converter when you need to express a weight in metric units — for doctor visits, gym equipment calibrated in kg, international shipping, or understanding a weight listed in kilograms.
Common use cases
How to use this converter
- Type your value into the field.
- The result appears instantly in the field as you type.
- Click Convert to confirm and see the full formula in the result card below.
- Use Use Result to chain conversions, or Clear to start fresh.
Tips for accurate conversions
- The exact conversion factor is 1 lb = 0.45359237 kg — this tool uses the full precision.
- To convert kg back to lbs, use the Kilograms to Pounds converter.
- For small weights, use the Ounces to Grams converter — grams are the metric equivalent of ounces.