Weight Converter
Type any value — all units update instantly
Quick conversions:
Weight & Mass Unit Converter
Convert between all major weight and mass units instantly. From everyday uses like checking your baggage weight limit, to cooking conversions and scientific measurements — this tool covers all common units.
Key Conversion Reference
1 kilogram (kg) = 2.20462 pounds = 1,000 grams
1 pound (lb) = 0.453592 kg = 16 ounces
1 stone = 14 pounds = 6.35029 kg
1 ounce (oz) = 28.3495 grams
1 tonne = 1,000 kg = 2,204.62 pounds
1 gram = 0.001 kg = 0.035274 ounces
1 pound (lb) = 0.453592 kg = 16 ounces
1 stone = 14 pounds = 6.35029 kg
1 ounce (oz) = 28.3495 grams
1 tonne = 1,000 kg = 2,204.62 pounds
1 gram = 0.001 kg = 0.035274 ounces
📘 Example Scenarios
Scenario 1 — Arun checks airline baggage 🧳
Arun's bag weighs 23 kg and the airline's limit is 50 lbs. He types 23 in the kg field and sees 50.7 lbs — just barely over! He removes a book (0.5 kg) and it's fine at 49.6 lbs. Saved from a baggage fee.
Scenario 2 — Emma follows a US recipe 🍳
Emma's recipe calls for 8 oz of cream cheese but her scale is in grams. She types 8 in the oz field and sees 226.8 grams — so she measures out 227g. Perfect conversion for baking.
Frequently asked questions
1 pound = 0.453592 kg. To quickly estimate: divide pounds by 2.2 to get approximate kilograms.
A stone is a unit of weight used mainly in the UK and Ireland for body weight. 1 stone = 14 pounds = 6.35 kg. So someone who weighs "10 stone" = 63.5 kg = 140 lb.
Mass is the amount of matter in an object (measured in kg or lb). Weight is the force of gravity on that mass. On Earth they're proportional, but on the Moon you'd weigh 1/6 as much while your mass stays the same.