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Weight Converter

Convert weight (mass) between metric and imperial units — kilograms, pounds, ounces, grams, stones, milligrams and metric tons. Enter a value, choose your units, and see the result plus a full conversion table.

Convert

Result
3.28084 ft

Conversion table

Unit Value
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How it works

Every unit is converted through a common base, the kilogram. The value is converted to kilograms, then to the target unit:

result = value × (factorfrom ÷ factorto)

where each factor is the unit's mass in kilograms. The key definitions are:

Worked example

Convert 70 kilograms to pounds:

And 12 ounces to grams: 12 × 28.3495 ≈ 340.19 g.

Common real-world conversions: a 180 lb person weighs 81.6 kg (or 12 st 12 lb in UK terms); a recipe's 250 g of flour is about 8.8 oz; and a 2,000 lb shipment is 0.907 metric tons — note the US "short ton" (2,000 lb) is lighter than the metric ton (2,204.6 lb), a frequent source of freight-quote confusion.

Popular kg, lb and oz conversions

For kilograms to pounds, multiply kilograms by 2.20462. For pounds to kilograms, multiply pounds by 0.453592. The converter applies the full conversion factor before rounding the displayed result.

  • 1 kg = 2.20462 lb
  • 1 lb = 0.453592 kg
  • 8.8 oz = about 0.249 kg
  • 1 stone = 14 lb = about 6.35029 kg
  • 1 metric ton = 1,000 kg

Enter either value above to convert kg to lbs, pounds to kg, ounces to kilograms, or kilograms to stone and pounds without creating separate pages for each unit pair.

Frequently asked questions

How many pounds are in a kilogram?
One kilogram is about 2.20462 pounds. To convert kilograms to pounds, multiply by 2.20462; to convert pounds to kilograms, multiply by 0.45359237 instead.
What is the difference between mass and weight?
In physics, mass is the amount of matter (measured in kilograms) and weight is the force gravity exerts on it. In everyday use the terms are interchangeable, and this tool converts the common 'weight' units people use day to day.
How many pounds are in a stone?
One stone equals exactly 14 pounds, or about 6.35 kilograms. Stones are still commonly used for body weight in the UK and Ireland.
How do I convert grams to ounces?
Divide grams by 28.3495 to get ounces, since one ounce is about 28.35 grams. For example, 500 g ÷ 28.3495 ≈ 17.64 oz.
What's the difference between a metric ton, a US ton and a UK ton?
A metric ton (tonne) is 1,000 kg ≈ 2,204.6 lb. The US 'short ton' is 2,000 lb ≈ 907.2 kg, and the UK 'long ton' is 2,240 lb ≈ 1,016 kg. Shipping and freight documents should always say which one they mean — this converter uses the metric ton.
Are these the same ounces used for gold and silver?
No. Precious metals use the troy ounce (about 31.103 g), which is roughly 10% heavier than the standard avoirdupois ounce (28.35 g) this converter uses for everyday weight.

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