Pounds to Kilograms Converter
Enter a weight in pounds to see it in kilograms right away. Edit either box and the other updates live. The math runs in your browser.
How to convert pounds to kilograms
- Type the weight in pounds into the left box.
- Read the kilogram value in the right box as it updates live.
- Edit the kilogram box instead to convert back to pounds.
Examples
One pound
1 lb
0.4536 kg
Body weight
150 lb
68.04 kg
Frequently asked questions
What is the formula to convert pounds to kilograms?
Multiply the weight in pounds by 0.45359237. So kg = lb times 0.45359237. For example, 10 lb becomes 10 times 0.45359237, which is about 4.536 kg.
How do I convert my body weight from pounds to kilograms?
Multiply your weight in pounds by 0.45359237. A 150 lb person weighs about 68.04 kg, and a 200 lb person weighs about 90.72 kg.
What are some common pounds to kilograms conversions?
1 lb is about 0.4536 kg, 10 lb is about 4.536 kg, 50 lb is about 22.68 kg, and 100 lb is about 45.36 kg.
Is this conversion exact?
Yes. One pound is defined as exactly 0.45359237 kilograms, so the calculation is precise. Results are rounded for display, but the underlying math is exact.
How many pounds are in one kilogram?
One kilogram is about 2.2046 pounds. To go the other way, divide kilograms by 0.45359237, or multiply by 2.2046226218.
Is my data sent anywhere?
No. The conversion runs entirely in your browser, so the weights you enter never leave your device.
Related tools
Kilograms to Pounds
Convert kilograms to pounds instantly. Type a mass in kg and get lb, with the formula and a quick reference table. Runs in your browser.
Ounces to Grams
Convert ounces to grams instantly. Type a weight in oz and get grams, with the formula and a quick reference table. Runs in your browser.
Binary to Decimal
Convert binary to decimal online. Paste any binary number, with or without spaces, and get the exact base-10 value instantly. Runs in your browser.
Binary to Hex
Convert binary to hexadecimal online. Paste a binary number and get exact hex, with optional uppercase. Handles huge values. Runs in your browser.
Celsius to Fahrenheit
Convert Celsius to Fahrenheit instantly. Type a temperature in C and get F, with the formula and a quick reference table. Runs in your browser.
Centimeters to Inches
Convert centimeters to inches instantly. Type a length in cm and get inches, with the formula and a quick reference table. Runs in your browser.