Weight Converter
Convert weight between kilograms, grams, pounds, ounces, stones, tonnes, quintals and traditional Indian units like tola, seer and maund.
What is the Weight Converter?
Weight (strictly, mass) is measured in kilograms in the metric system. Pounds and ounces are used in the US and UK, and tola remains common for gold in India.
How does it work?
Every unit is defined by an exact factor relative to the kilogram. The value is converted to the kilogram and then to the target unit, so any pair of units can be converted consistently. Results are shown with up to 10 significant digits.
Formula
1 lb = 0.45359237 kg (exact)
1 tola = 11.6638 g
1 quintal = 100 kg
Example
70 kg = 154.32 lb. 10 grams of gold = 0.857 tola.
Common conversions
| From | To | Multiply by |
|---|
| Kilograms | Pounds | 2.20462 |
| Pounds | Kilograms | 0.453592 |
| Grams | Ounces | 0.035274 |
| Ounces | Grams | 28.3495 |
| Stones | Kilograms | 6.35029 |
| Tonnes | Kilograms | 1,000 |
| Quintals | Kilograms | 100 |
| Tola | Grams | 11.6638 |
Quick reference: kilograms to pounds
For a rough mental estimate, double the kilograms and add 10%: 70 kg × 2 = 140, plus 14 is 154 lb. To go from pounds to kilograms, halve the pounds and subtract 10% of the result.
| Kilograms | Pounds |
|---|
| 1 kg | 2.205 lb |
| 5 kg | 11.02 lb |
| 10 kg | 22.05 lb |
| 50 kg | 110.23 lb |
| 70 kg | 154.32 lb |
| 100 kg | 220.46 lb |
Indian units: tola, seer and maund
The tola is still widely used for gold and silver. Its standard value is 11.6638 grams, but many jewellers quote gold prices per 10 grams, and some trade uses a rounded 10-gram tola. Ten grams of gold is about 0.857 standard tola. Check which definition a jeweller is using before comparing prices.
The seer and maund were traditional units for grain and produce. Their official values were about 0.933 kg and 37.32 kg, but local versions varied from region to region. Today they appear mainly in older records and rural markets. The quintal (100 kg) is the standard unit for crop prices such as minimum support prices.
Mass and weight
Strictly, kilograms and pounds measure mass, the amount of matter in an object. Weight is the force gravity exerts on that mass. In everyday use the two are treated as the same, and all scales in shops and clinics are calibrated in mass units.
The pound is defined exactly as 0.45359237 kg, so conversions between metric and imperial units are exact; any differences come only from rounding.
Where conversions go wrong
- US and UK tons differ: a US short ton is 907.18 kg and a UK long ton is 1,016.05 kg, while a metric tonne is 1,000 kg.
- Troy ounces, used for gold and silver prices internationally, are 31.1035 grams, heavier than the ordinary 28.35-gram ounce.
- Cooking recipes measured in cups measure volume, not weight; use the cooking unit converter for those.
Frequently asked questions
How many grams are in a tola?
One tola is 11.6638 grams. Jewellers sometimes round a tola to 10 grams for gold pricing, so check which definition is being used.
How many grams are in a pound?
One pound is exactly 453.59237 grams, often rounded to 454 grams.
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