Mass & Weight Converter
Convert mass units instantly: kilogram, gram, milligram, microgram, tonne, pound and more. Precise factors, all units shown at once.
| Unit | Value |
|---|---|
| kilogram (kg) | |
| gram (g) | |
| milligram (mg) | |
| microgram (µg) | |
| tonne (t) | |
| pound (lb) | |
| ounce (oz) | |
| stone (st) | |
| short ton (ton (US)) | |
| long ton (ton (UK)) | |
| carat (ct) | |
| grain (gr) | |
| troy ounce (ozt) | |
| dalton (u) (Da) |
Tip: double-click a row to convert from that unit. Click a value to copy it. Expressions like 3*12 are accepted.
How to use the Mass & Weight Converter
- Type the value you want to convert (expressions are allowed).
- Choose the unit you are converting from.
- Read the result in every other unit in the table — it updates as you type.
About this tool
Enter a value and choose its unit; the mass is converted to all 14 supported units simultaneously. Conversions use exact definitions where they exist (e.g. 1 inch = 25.4 mm, 1 lb = 0.453 592 37 kg).
Common conversions
| 1 kg = 1000 g | 1 g = 0.001 kg |
| 1 kg = 1 000 000 mg | 1 mg = 0.000001 kg |
| 1 kg = 1 000 000 000 µg | 1 µg = 1 × 10⁻⁹ kg |
| 1 kg = 0.001 t | 1 t = 1000 kg |
| 1 kg = 2.204622622 lb | 1 lb = 0.45359237 kg |
| 1 kg = 35.27396195 oz | 1 oz = 0.0283495231 kg |