Weight And Mass Converter
Enter one value and instantly see all common metric and imperial equivalents. Results update live while you type.
Tip: you can edit either input field and the opposite value updates automatically.
Enter a value to plot it on the spectrum.
All Units
Click any value to copy it.
Scale Context (Compared In Kilograms)
Bars cap at 100% to keep the visual readable for very large values.
How This Converter Works
Each unit is defined as a fixed number of grams. The converter first maps your input to grams, then converts grams to every target unit.
targetValue = grams / targetFactorInGrams
| Unit | Exact grams | Typical use |
|---|---|---|
| Gram (g) | 1 | Nutrition labels, small ingredients |
| Kilogram (kg) | 1,000 | Body weight, shipping, groceries |
| Ounce (oz) | 28.349523125 | Food portions, packaging |
| Pound (lb) | 453.59237 | US body weight, parcels |
| Stone (st) | 6,350.29318 | UK and Ireland body weight |
| Metric ton (t) | 1,000,000 | Cargo and industrial loads |
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Weight Converter FAQ
How do I convert kilograms to pounds?
Multiply kilograms by 2.2046226218. For example, 70 kg is about 154.32 lb.
What is the exact definition of one pound?
One international avoirdupois pound is exactly 453.59237 grams.
Is stone still used today?
Yes. Stone is still commonly used in the UK and Ireland for body weight. One stone equals 14 pounds.
How many ounces are in a pound?
There are exactly 16 ounces in one pound. This is a fixed conversion in the avoirdupois system.
What is a metric ton?
A metric ton (or tonne) is exactly 1,000 kilograms or 1,000,000 grams. It is used for measuring large cargo and industrial loads.
Can I convert between grams and ounces for cooking?
Yes. One ounce equals 28.349523125 grams. For cooking, many recipes round to 28.35 grams per ounce for convenience.
Does this converter send data to a server?
No. All calculations run in your browser. No values are sent or stored.
Privacy & Limitations
- All calculations run entirely in your browser -- nothing is sent to any server.
- Results are computed using standard formulas and should be verified for critical applications.
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