Weight converter
Enter a weight in any unit and instantly see the equivalent in milligrams, grams, kilograms, ounces, pounds, and stone. All conversion happens locally in your browser. Our servers are not involved at any point.
How it works
Each unit is stored as a multiplier relative to a base unit. When you enter a value, the tool converts it to the base unit first, then multiplies by each target unit's factor. Temperature is handled separately using its own formulas (°C → °F: multiply by 9/5 then add 32; °C → K: add 273.15). All conversion runs in your browser. Our servers are not involved.
Processing runs in your browser
All conversions happen instantly in your browser tab. Our servers are not involved at any point.
Related operations
For converting between bytes, kilobytes, and gigabytes, try the byte converter. To work with fractions alongside metric values, use the fraction calculator. For taking a percentage of a converted value, see the percentage calculator.
Frequently asked questions
- How many pounds are in a kilogram?
- 1 kilogram equals approximately 2.20462 pounds. To convert kg to lbs, multiply by 2.20462.
- How many grams are in an ounce?
- 1 ounce (avoirdupois) equals 28.3495 grams. To convert oz to g, multiply by 28.3495.
- What is a stone in kg?
- 1 stone equals 14 pounds, which is approximately 6.35029 kilograms. The stone unit is commonly used in the UK and Ireland for body weight.
- How many ounces are in a kilogram?
- About 35.274 ounces. The converter takes the ounce as one sixteenth of the pound, which is defined as exactly 0.45359237 kg.
Last reviewed September 30, 2026
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