Pounds to Kilograms Converter
Formula
kg = lbs ÷ 2.20462
To convert pounds to kilograms, divide the pound value by 2.20462. One kilogram equals approximately 2.205 pounds. The kilogram is the base unit of mass in the metric system.
How to use
- Enter the Weight in Pounds.
- Read the equivalent weight in kilograms below.
- Adjust the value to convert any other weight.
Example
Convert 150 lbs: 150 ÷ 2.20462 = 68.04 kg. So 150 pounds is about 68 kilograms.
Frequently Asked Questions
How many kg is 150 lbs?
150 lbs equals approximately 68.04 kg.
How many kg is 200 lbs?
200 lbs equals approximately 90.72 kg.
Is a kilogram heavier than a pound?
Yes, 1 kilogram equals about 2.205 pounds, so a kilogram is roughly 2.2 times heavier than a pound.
Why does the US use pounds?
The US uses the imperial system inherited from the British Empire. While most countries adopted the metric system, the US retained pounds for everyday weight measurements.
How do I convert pounds and ounces to kilograms?
First turn the ounces into a fraction of a pound by dividing by 16, then add that to the pounds and divide the total by 2.20462. For example, 8 lbs 4 oz is 8.25 lbs, which equals about 3.74 kg. This is commonly needed to record a baby's birth weight in metric units.
Why do gyms and barbell plates list weights in both pounds and kilograms?
Standard barbell plates come in both systems, with common pound plates at 45, 35, 25, and 10 lbs and kilogram plates at 20, 15, 10, and 5 kg. Competition lifting under the IWF and IPF uses kilograms, so serious lifters often train in kg, while most US commercial gyms default to pounds. A 45 lb plate is about 20.4 kg, close to but not the same as a 20 kg plate, so don't assume they match.