# Weight Conversion Calculators

**US Customary & Imperial Units**

**SI Units**

**Other Units**

## What is Weight/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.

## Units of Weight Measurement

## Common Weight Measurement 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

## Weight Unit Conversion Table

Convert From | Ton | Pound | Ounce | Metric Ton | Long Ton | Kilogram | Gram | Milligram | Carat |
---|---|---|---|---|---|---|---|---|---|

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 |

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 |

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 |

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 |

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 |

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 |

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 |

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 |

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 |

## References

- NASA, What is Weight?, https://www.grc.nasa.gov/WWW/k-12/airplane/weight1.html