Weight Converter
Convert between kilograms, pounds, ounces, grams, and stone instantly.
Last updated: September 23, 2026
KG to LBS quick reference
| Kilograms | Pounds |
|---|---|
| 1 kg | 2.20 lbs |
| 5 kg | 11.02 lbs |
| 10 kg | 22.05 lbs |
| 25 kg | 55.12 lbs |
| 50 kg | 110.23 lbs |
| 75 kg | 165.35 lbs |
| 100 kg | 220.46 lbs |
How the conversion works
1 kilogram equals exactly 2.20462 pounds. This tool uses that precise conversion factor for kg/lbs, along with standard factors for grams (1 kg = 1,000 g), ounces (1 lb = 16 oz, so 1 kg ≈ 35.27 oz), and stone (1 stone = 14 lbs ≈ 6.35 kg), so results match what you'd get from a reference chart or scale conversion table.
Stone: a UK-specific unit worth knowing
Stone is used for body weight almost exclusively in the UK and Ireland someone described as "12 stone 4" is giving weight in stone-and-pounds, similar to how US height is given in feet-and-inches. It's rarely used for anything other than human body weight; UK shipping, cooking, and product weights are given in kilograms and grams like the rest of Europe. If you're converting a UK weight reference and only see a number like "12st 4lb," that's 12 stone plus 4 additional pounds, equal to about 78 kg (172 lbs) total.
Shipping and postage use cases
International shipping is one of the most common reasons to convert weight: US carriers and postal rates are calculated in pounds and ounces, while nearly every other country's postal service and most international carriers (and customs forms) use kilograms and grams. Getting the conversion right matters for cost many carriers round up to the next whole unit, so a package listed as 2.3 kg might get billed as 3 kg, similarly to how a US package just over 5 lbs gets billed at the 6 lb rate.
FAQ
How many pounds is a stone?
One stone equals 14 pounds, or about 6.35 kilograms. Stone is commonly used for body weight in the UK and Ireland.
Why do US and UK recipes use different weight units?
US recipes typically use ounces and pounds, while most other countries use grams and kilograms. This converter works both directions, so you can convert a recipe either way.
How many grams are in an ounce?
1 ounce equals approximately 28.35 grams. This is the standard avoirdupois ounce used for everyday weight (as opposed to the slightly different troy ounce used for precious metals).
Is the ounce used for weight the same as a fluid ounce?
No a weight ounce (oz) measures mass, while a fluid ounce (fl oz) measures volume. They happen to share a name because a fluid ounce of water weighs close to (but not exactly) one ounce, which causes frequent confusion in recipes and shipping forms.
Why do airlines list baggage weight limits in kilograms even for US flights?
Most airlines operate internationally and standardize policies globally in kilograms, converting to pounds only for the US market's convenience so a "23 kg" bag limit (about 50.7 lbs) is the actual global standard being applied.
How precise are the conversions in this tool?
This tool uses the exact defined conversion factor (1 kg = 2.20462 lbs) rather than a rounded approximation, so results are accurate to five decimal places more precise than most kitchen or bathroom scales can actually measure.