lbs to kg – convert pounds to kilograms
Convert lbs to kg (pounds to kilograms) for body weight, shipping, recipes and more. This page links to the main mass converter with lb → kg pre-selected so you can type a value once and share or bookmark the result.
Open the interactive lb → kg converter:
Use main converter (lb → kg) or switch to kg → lbThe homepage supports kilograms, grams, milligrams, pounds, ounces and stone, all using the same precise conversion engine.
Quick reference: lbs to kg
The exact factor is 1 lb = 0.45359237 kg. Here are some common pound values converted to kilograms:
| Pounds (lb) | Kilograms (kg, approx.) |
|---|---|
| 100 lb | 45.4 kg |
| 120 lb | 54.4 kg |
| 150 lb | 68.0 kg |
| 180 lb | 81.6 kg |
| 200 lb | 90.7 kg |
| 220 lb | 99.8 kg |
| 250 lb | 113.4 kg |
Why convert pounds to kilograms?
People usually convert lb to kg when they:
- Use US or UK scales but track weight in kilograms or BMI charts.
- Read shipping labels and parcel limits shown only in pounds.
- Compare gym programmes written in kilograms with local lb plates.
- Move between metric countries and places that still use pounds.
More weight converters on this site
lbs to kg FAQ
How do you calculate kg from lb exactly?
Multiply the number of pounds by 0.45359237. Example: 200 lb × 0.45359237 ≈ 90.72 kg.
Why do health charts often use kilograms?
Medical and scientific communities use the metric system, so kg is the standard for BMI and clinical guidelines.
Are US and UK pounds the same?
Yes – modern “international avoirdupois” pounds are the same in the US and UK, so this converter works for both.
Page last updated: 2 December 2025.