Weight Converter
Convert between milligrams, grams, kilograms, tonnes, ounces, pounds, stones, and more.
Result
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All conversions
What is Weight Converter?
A weight converter lets you switch between metric and imperial mass units instantly. Weight (more precisely, mass) is expressed in grams and kilograms in the metric system, and in ounces, pounds, and stones in the imperial system. Conversions are common in cooking, shipping, fitness tracking, and international trade where different regions use different standards.
How to use
- 1 Type the weight value you want to convert into the Value field.
- 2 Choose the source unit from the From dropdown.
- 3 Choose the target unit from the To dropdown.
- 4 The converted result and a full comparison table appear automatically.
- 5 Click the swap button to flip the conversion direction.
Formula
Example calculation
To convert 10 pounds to kilograms: 10 lb × 0.453592 kg/lb = 4.536 kg. Conversely, 4.536 kg / 0.453592 = 10 lb.
Frequently asked questions
How many pounds are in a kilogram?
One kilogram equals approximately 2.20462 pounds. Equivalently, one pound equals 0.453592 kilograms.
What is a stone in pounds?
One stone equals 14 pounds. The stone is an imperial unit still commonly used in the UK to express body weight.
What is the difference between mass and weight?
Mass measures the amount of matter in an object (kg, lb) and does not change with location. Weight is the gravitational force on that mass and varies with gravity. In everyday use the terms are used interchangeably.
How do I convert ounces to grams?
Multiply the number of ounces by 28.3495. For example, 8 oz × 28.3495 = 226.8 g.
What is a metric tonne?
A metric tonne (also spelled ton) equals 1000 kilograms or about 2204.62 pounds. It is distinct from the US short ton (907.185 kg) and the UK long ton (1016.05 kg).