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Weight Converter

Convert between metric and imperial weight units instantly. Supports milligrams, grams, kilograms, metric tons, ounces, pounds, stone, US tons, and imperial tons.

Enter a weight value, choose your units, and see the result instantly with a full conversion table.

Result

2.2046244
Kilogram to Pound
Input1 kg
Output2.2046244 lb

Quick Reference: 1 kg in All Units

Milligram (mg)1000000
Gram (g)1000
Kilogram (kg)1
Metric Ton (t)0.001
Ounce (oz)35.273991
Pound (lb)2.2046244
Stone (st)0.15747312
US Ton (Short) (short ton)0.001102311
Imperial Ton (Long) (long ton)0.00098420644

How to Use This Tool

  1. Enter the weight value you want to convert.
  2. Select the unit you are converting from in the "From" dropdown.
  3. Select the unit you want to convert to in the "To" dropdown.
  4. Read the converted result and comparison instantly.
  5. Use "Swap Units" to quickly reverse the From and To units.
  6. Check the Quick Reference table to see your value converted into every supported unit at once.

Formula & How It Works

Weight Conversion Formula

result = value × (fromFactor ÷ toFactor)

Every unit has a conversion factor expressed in grams. The value is normalized to grams (value × fromFactor), then divided by the target unit's factor to get the final result.

Pounds to Kilograms

kg = lb × (453.592 ÷ 1000)

1 pound is defined as exactly 453.592 grams, so converting to kilograms means multiplying by the pound factor and dividing by 1000 (grams per kilogram).

Imperial Weight Relationships

1 stone = 14 lb; 1 US (short) ton = 2000 lb; 1 imperial (long) ton = 2240 lb

These traditional imperial relationships are used to derive each unit's gram-based conversion factor (e.g. 1 stone = 6350.29 g).

Practical Examples & Common Use Cases

Converting body weight from pounds to kilograms

5 lb × (453.592 ÷ 1000) = 5 × 0.453592 = 2.2680 kg.

Converting kilograms to pounds and stone for UK body weight

70 kg × (1000 ÷ 453.592) ≈ 154.32 lb, which is about 11 stone (154.32 ÷ 14 ≈ 11.02).

Converting a shipment weight from metric tons to US tons

3 metric tons × (1,000,000 ÷ 907,185) ≈ 3.31 US (short) tons.

Frequently Asked Questions

One kilogram equals approximately 2.20462 pounds. To convert kilograms to pounds, multiply by 2.20462. For a quick estimate, double the kg value and add 10%.

A US (short) ton equals 2,000 pounds (907.185 kg), while an imperial (long) ton equals 2,240 pounds (1,016.047 kg). A metric ton equals 1,000 kg (2,204.62 lbs), falling between the two.

A stone is an imperial unit equal to 14 pounds (approximately 6.35 kg). It is primarily used in the United Kingdom and Ireland for expressing body weight. For example, 150 lbs is about 10 stone 10 lbs.

Technically, mass is the amount of matter in an object (measured in kilograms), while weight is the force of gravity on that mass (measured in Newtons). In everyday use on Earth, the terms are used interchangeably because gravity is essentially constant at the surface.

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