Correct convention
This tool converts mass, although everyday searches often call it weight.
Weight and Mass Converter
Convert kilograms, pounds, ounces, stones and tonnes without mixing mass and force.
Local conversion with no external APIs or value storage.
Converted value
Conversion table
| Unit | Converted value |
|---|---|
| Microgram (µg) | 1,000,000,000 |
| Milligram (mg) | 1,000,000 |
| Gram (g) | 1,000 |
| Kilogram (kg) | 1 |
| Metric tonne (t) | 0.001 |
| Ounce (oz) | 35.27396195 |
| Pound (lb) | 2.2046226218 |
| Stone (st) | 0.15747304442 |
| US short ton (US ton) | 0.001102311311 |
| Imperial long ton (UK ton) | 0.000984206528 |
| Carat (ct) | 5,000 |
| Grain (gr) | 15,432.358353 |
The conversion runs locally. Values are not sent to servers, stored by default or processed through external APIs.
How to use this converter
- 1
Enter a valid numeric value.
- 2
Choose the source and destination units.
- 3
Adjust precision, then copy or review equivalents.
Precise, private conversion
Important distinctions
Metric tonnes, US short tons and imperial long tons are separate units.
Local calculation
Values remain in the browser and are not stored by default.
Frequently asked questions
How is the conversion calculated?
This tool converts mass, although everyday searches often call it weight.
What important distinction should I consider?
Metric tonnes, US short tons and imperial long tons are separate units.
Are conversions exact?
Defined factors are exact where an exact definition exists; display may be rounded to the selected precision.
Are my values sent or stored?
No. Everything is calculated locally without external APIs or default storage.