Weight Converter
Convert weights
0.001
Metric Tons (t)
1,000
Grams (g)
1,000,000
Milligrams (mg)
2.2046
Pounds (lb)
35.274
Ounces (oz)
0.157473
Stones (st)
0.001102
US Tons (ton)
5,000
Carats (ct)
Click any result to use it as input
Weight Converter
Convert weights
Features
- Convert between metric (mg/g/kg/t) and imperial (oz/lb/stone/US ton)
- Precise factors: 1 lb = 0.45359237 kg, 1 oz = 28.3495231 g, 1 stone = 6.35029318 kg, 1 carat = 0.2 g
- Specialised units: carat (gemstones), grain (firearms/pharmacy)
- Decimal precision configurable
- Runs entirely in your browser
How to use
- Enter your input data in the provided field.
- Configure any options as needed.
- View the results instantly and copy or download the output.
Tips & Best Practices
- The international pound (1 lb = 0.45359237 kg) replaced regional pounds in 1959; older conversions may differ slightly.
- Stone (14 lb) is still used in the UK and Ireland for body weight. 12 stone ≈ 76.2 kg.
- US ton (2000 lb) and UK long ton (2240 lb) differ — the converter exposes both for clarity.
- Carat (200 mg) is used only for gemstones; in pharmaceutical contexts, a "grain" is 64.7989 mg.
- Everything is computed locally; no values leave your browser.
FAQ
Is this tool free to use?
Yes, completely free with no registration, no limits, and no hidden costs.
Is my data private?
All processing happens in your browser. No data is ever sent to any server or third party.
Does it work offline?
Once loaded, the tool works entirely offline. All processing is done client-side with JavaScript.
Which browsers are supported?
Works in Chrome, Firefox, Safari, Edge, and all modern browsers on desktop and mobile.
Can I use the results commercially?
Yes, all output is yours to use freely in any personal or commercial project without restrictions.