Mass Calculator
Convert mass between common units quickly and accurately.
Results
Converted Mass
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Conversion Factor
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What is Mass?
Mass is a measure of the amount of matter in an object. Unlike weight, mass does not change with location or gravity. Common units include grams, kilograms, pounds, and ounces.
How to Use This Calculator
- Enter the mass value you want to convert.
- Select the current unit in the "From Unit" dropdown.
- Select the desired unit in the "To Unit" dropdown.
- Click "Convert Mass" to see the result.
Frequently Asked Questions
What is the difference between mass and weight?
Mass is the amount of matter in an object and is constant. Weight is the force of gravity acting on that mass and changes depending on location.
How many grams are in a kilogram?
There are 1,000 grams in one kilogram.
How do I convert pounds to kilograms?
Multiply pounds by 0.453592 to get kilograms. This calculator does it automatically.
What is a stone?
A stone is a British imperial unit of mass equal to 14 pounds or approximately 6.35 kilograms.