How many pounds is one kilogram?

1 kg = 2.2046226 lb, and 1 lb = 0.45359237 kg exactly. So an 80 kg person weighs about 176.4 lb. One ounce (oz) is 1/16 lb = 28.3495 g.

What is a stone in kg and pounds?

1 stone (st) = 14 lb = 6.35029318 kg. Body weight is often given in stone in the UK and Ireland — e.g. 11 st 4 lb is 11×14 + 4 = 158 lb ≈ 71.7 kg.

Is a US ton the same as a UK ton or a tonne?

No, all three differ. A tonne (metric ton) = 1000 kg. A US short ton = 2000 lb ≈ 907.185 kg. A UK long ton = 2240 lb ≈ 1016.05 kg. This tool lists all three so you can convert precisely.

The metric carat (ct) is a mass unit for gemstones and pearls: 1 ct = 200 mg = 0.2 g exactly. Don't confuse it with karat (gold purity), which is not a mass at all.

Weight & Mass Converter

Enter a weight or mass in any common unit and see it in all the others instantly: milligram (mg), metric carat (ct), gram (g), kilogram (kg), tonne (t), ounce (oz), pound (lb), stone (st), US short ton and UK long ton. The value is converted to kilograms internally and then to every unit, so conversions are exact. The avoirdupois units derive from the exact definition 1 lb = 0.45359237 kg. Handy for cooking and shipping (g, kg, oz, lb), body weight (kg, lb, stone), jewellery (carat) and freight (tonne, US/UK ton). Everything is computed locally in your browser.

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ValueUnit

1,000,000

ct (carat)

5,000

g (gram)

1,000

t (tonne)

0.001

35.273962

2.2046226

st (stone)

0.15747304

ton (US)

0.00110231

ton (UK)

0.00098421

How to use

Type a weight or mass value.
Pick the unit you entered it in.
Read the value in every other unit and copy whichever you need.

Frequently asked questions

How many pounds is one kilogram?: 1 kg = 2.2046226 lb, and 1 lb = 0.45359237 kg exactly. So an 80 kg person weighs about 176.4 lb. One ounce (oz) is 1/16 lb = 28.3495 g.
What is a stone in kg and pounds?: 1 stone (st) = 14 lb = 6.35029318 kg. Body weight is often given in stone in the UK and Ireland — e.g. 11 st 4 lb is 11×14 + 4 = 158 lb ≈ 71.7 kg.
Is a US ton the same as a UK ton or a tonne?: No, all three differ. A tonne (metric ton) = 1000 kg. A US short ton = 2000 lb ≈ 907.185 kg. A UK long ton = 2240 lb ≈ 1016.05 kg. This tool lists all three so you can convert precisely.
What is a carat?: The metric carat (ct) is a mass unit for gemstones and pearls: 1 ct = 200 mg = 0.2 g exactly. Don't confuse it with karat (gold purity), which is not a mass at all.