Weight and mass, metric to imperial and back
Convert grams, kilograms, and tonnes against ounces, pounds, and stone from a single input. It's the tool for reading a recipe in grams when your scale shows ounces, converting a parcel weight for a shipping label, or logging body weight in the unit your app expects.
Kitchen, gym, and shipping ready
Handy anchors: 1 kg ≈ 2.205 lb, 100 g ≈ 3.53 oz, and 1 stone = 14 lb = 6.35 kg. Everything is calculated client-side and updates as you type, so batch-converting a list of weights is just a matter of changing the number.
Features
- 01
- Enter one value, see every weight/mass unit at once
- 02
- kg ↔ lb, g ↔ oz, stone, tonne, and US ton
- 03
- From/To selector with instant swap
- 04
- Click-to-copy on any unit
- 05
- Precise SI-based factors, computed locally
