How to use the Weight Converter
- Type the weight you want to convert.
- Choose the unit you're converting from and the unit you want.
- Read the result instantly. Use the swap button to convert the other way.
- Check the tables below for every unit and common values.
What does this tool do?
The international avoirdupois pound is defined as exactly 0.45359237 kg. An ounce is 1/16 of a pound and a stone (still used for body weight in the UK and Ireland) is 14 pounds.
Watch out for “tons”: a metric ton (tonne) is 1,000 kg, a US short ton is 2,000 lb (907 kg) and a UK long ton is 2,240 lb (1,016 kg).
Why use it?
- Convert body weight, recipes and shipping weights.
- Handles stones and all three kinds of ton.
- Exact factors.
Use cases
- Convert body weight between kg, pounds and stones.
- Follow recipes that use grams or ounces.
- Check parcel and luggage weights against airline or courier limits.
Common weight conversions
Quick reference:
| Metric | Imperial / US |
|---|---|
| 1 kg | 2.2046 lb |
| 0.4536 kg | 1 lb |
| 100 g | 3.527 oz |
| 28.35 g | 1 oz |
| 6.35 kg | 1 st |
| 70 kg | 154.3 lb (11 st 0.3 lb) |
| 1 t | 2,204.6 lb |
Common mistakes
- Mixing up the three kinds of ton — a US ton is 907 kg, a UK ton 1,016 kg and a metric tonne 1,000 kg.
- Using fluid ounces for weight. Fluid ounces measure volume; an ounce of weight (28.35 g) only matches a fluid ounce for water-like liquids.
The formula
Privacy
The calculation happens instantly in your browser. The numbers you enter are not sent to our servers or saved. There's no account to create and nothing to install.
Frequently asked questions
How much is 150 pounds in kg?
150 lb is 68.04 kg (150 × 0.45359237). Going the other way, 5 kg is 11.02 lb.
How many ounces are in a kilogram?
35.274 ounces. 200 g, a common recipe amount, is about 7.05 oz.
How many pounds are in a kilogram?
One kilogram is about 2.20462 pounds. A quick mental shortcut is to double the kilograms and add 10%: 50 kg is about 100 + 10 = 110 lb.
How do I convert stone to kilograms?
One stone is 14 pounds, or about 6.35 kg. So 11 stone is about 69.9 kg. For stone and pounds, convert the stone first, then add the pounds at 0.4536 kg each.
Last reviewed by the M2Toolkit team.