Weight Converter
All Weight Conversion Calculators
What is Weight or Mass?
Weight is an object's relative mass and the force of gravity on an object. According to NASA, weight or mass is the force generated by the gravitational attraction of the earth.[1]
Because the mass of an object is really the force of gravity on it, the mass of an object will be the same everywhere on Earth.
In space objects are weightless and the mass of an object on another planet with a different gravitational force will be different.
Scales are instruments that measure weight and vary in size from fitting into your pocket to being larger than a semi truck. Common measures of weight are tons, pounds, ounces, and grams.
Tons, pounds, and ounces are US customary and imperial units of mass, while kilograms, grams, and other multiples of the gram are metric units of mass.
How to Convert Units of Weight
There are two steps to convert a unit of weight to a different unit.
First, you'll need to find the conversion ratio, or the rate of one unit to another. Use the conversion chart below to find the conversion ratio for your two units.
Once you've found the conversion ratio, simply multiply the value you want to convert by the conversion ratio.
Weight Conversion Chart
| Convert From | Ton | Pound | Ounce | Metric Ton | Long Ton | Kilogram | Gram | Milligram | Carat | Calorie | Stone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 ton = | 1 t | 2,000 lb | 32,000 oz | 0.907185 t | 0.892857 lt | 907.18474 kg | 907,185 g | 907,184,740 mg | 4,535,924 ct | 7,000,000 kcal | 142.857143 st |
| 1 pound = | 0.0005 t | 1 lb | 16 oz | 0.000454 t | 0.000446 lt | 0.453592 kg | 453.59237 g | 453,592 mg | 2,268 ct | 3,500 kcal | 0.071429 st |
| 1 ounce = | 0.00003125 t | 0.0625 lb | 1 oz | 0.00002835 t | 0.000027902 lt | 0.02835 kg | 28.349523 g | 28,350 mg | 141.747616 ct | 218.75 kcal | 0.004464 st |
| 1 metric ton = | 1.102311 t | 2,205 lb | 35,274 oz | 1 t | 0.984207 lt | 1,000 kg | 1,000,000 g | 1,000,000,000 mg | 5,000,000 ct | 7,716,179 kcal | 157.473044 st |
| 1 long ton = | 1.12 t | 2,240 lb | 35,840 oz | 1.016047 t | 1 lt | 1,016 kg | 1,016,047 g | 1,016,046,900 mg | 5,080,235 ct | 7,840,000 kcal | 159.999999 st |
| 1 kilogram = | 0.001102 t | 2.204623 lb | 35.273962 oz | 0.001 t | 0.000984 lt | 1 kg | 1,000 g | 1,000,000 mg | 5,000 ct | 7,716 kcal | 0.157473 st |
| 1 gram = | 0.0000011023 t | 0.002205 lb | 0.035274 oz | 0.000001 t | 0.00000098421 lt | 0.001 kg | 1 g | 1,000 mg | 5 ct | 7.716179 kcal | 0.000157 st |
| 1 milligram = | 0.0000000011023 t | 0.0000022046 lb | 0.000035274 oz | 0.000000001 t | 0.00000000098421 lt | 0.000001 kg | 0.001 g | 1 mg | 0.005 ct | 0.007716 kcal | 0.00000015747 st |
| 1 carat = | 0.00000022046 t | 0.000441 lb | 0.007055 oz | 0.0000002 t | 0.00000019684 lt | 0.0002 kg | 0.2 g | 200 mg | 1 ct | 1.543236 kcal | 0.000031495 st |
| 1 calorie = | 0.00000014286 t | 0.000286 lb | 0.004571 oz | 0.0000001296 t | 0.00000012755 lt | 0.00013 kg | 0.129598 g | 129.59782 mg | 0.647989 ct | 1 kcal | 0.000020408 st |
| 1 stone = | 0.007 t | 14 lb | 224 oz | 0.00635 t | 0.00625 lt | 6.350293 kg | 6,350 g | 6,350,293 mg | 31,751 ct | 49,000 kcal | 1 st |
Common Conversions
- Tons to pounds weight conversion
- 1 ton is equal to 2,000 pounds
- Tons to metric tons weight conversion
- 1 ton is equal to 0.907185 metric tons
- Pounds to grams weight conversion
- 1 pound is equal to 453.59237 grams
- Pounds to kilograms weight conversion
- 1 pound is equal to 0.453592 kilograms
- Pounds to ounces weight conversion
- 1 pound is equal to 16 ounces
- Ounces to milligrams weight conversion
- 1 ounce is equal to 28,350 milligrams
References
- NASA, What is Weight?, https://www.grc.nasa.gov/WWW/k-12/airplane/weight1.html
