Weight Converter
Convert mg, g, kg, tons, ounces, pounds, stones.
Enter a value to convert instantly between units of weight (mass) — milligrams, grams, kilograms, metric tons, ounces, pounds and stones. Everything runs locally in your browser.
Your input is processed locally in your browser — nothing is uploaded, stored or logged.
Saved you time?Buy me a coffee
How it works
- 1 Type a value.
- 2 Pick the units to convert from and to.
- 3 Copy the result, or Swap to reverse.
Common use cases
- Convert recipe weights.
- Switch grams and ounces.
- Check parcel weight in lb or kg.
- Convert body weight units.
Frequently asked questions
Is my input sent to a server?
No. Every calculation runs locally in your browser — your input is never uploaded, stored or logged.
Weight or mass?
These are mass units (e.g. 1 lb = 453.59237 g). On Earth they map directly to everyday weight.
Is it really free?
Yes — free, with no signup and no limits.