Calculator Soup^{®}

This online conversion calculator will convert among different units of weight or mass. For more specific calculations use avoirdupois unit conversions and troy unit conversions.

Conversions are performed by using a conversion factor. By knowing the conversion factor, converting between units can become a simple multiplication problem:

**S * C = E**

Where **S** is our starting value, **C** is our conversion factor, and **E** is our end converted result.

To simply convert from any unit into grams^{}, for example, from 5 kilograms, just * multiply by* the conversion value in the right column in the table below.

5 kg * 1000 [ (g

^{}) / (kg) ] = 5000 g^{}

To convert from g^{} into units in the left column * divide by* the value in the right column or, multiply by the reciprocal, 1/x.

5000 g

^{}/ 1000 [ (g^{}) / (kg) ] = 5 kg

To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into grams then divide by the factor for B to convert out of g^{}. Or, you can find the single factor you need by dividing the A factor by the B factor.

For example, to convert from kilograms to pounds you would multiply by 1000 then divide by 453.59237. Or, multiply by 1000/453.59237 = 2.204622. So, to convert directly from kg to lb, you multiply by 2.204622.

To Convert from Unit |
Unit Symbol |
and Convert to ( g ) |
Multiply by ( g / Unit ) |
---|---|---|---|

carat (metric) | ct | gram | 0.2 |

point (metric) | pt | gram | 0.002 |

dram (avdp) | dr | gram | 1.771845195 |

dram (troy) | dr | gram | 3.8879346 |

grain (metric) | gr | gram | 0.05 |

grain (troy) | gr | gram | 0.06479891 |

gram |
g |
gram |
1 |

hundredweight (long) | hwt | gram | 50802.34544 |

hundredweight (short) | hwt | gram | 45359.237 |

kilogram | kg | gram | 1000 |

megagram | Mg | gram | 1000000 |

milligram | mg | gram | 0.001 |

ounce (avdp) | oz | gram | 28.34952313 |

ounce (troy) | oz | gram | 31.1034768 |

pennyweight | dwt | gram | 1.55517384 |

pound (avdp) | lb | gram | 453.59237 |

pound (metric) | lb | gram | 500 |

pound (troy) | lb | gram | 373.2417216 |

slug | slug | gram | 14593.903 |

stone | st | gram | 6350.29318 |

ton-assay (long) | l AT | gram | 32.666667 |

ton-assay (short) | sh AT | gram | 29.166667 |

ton (long) | l tn | gram | 1016046.909 |

ton (short) | sh tn | gram | 907184.74 |

ton-metric | t | gram | 1000000 |

tonne (U.S. metric ton) | t | gram | 1000000 |

The National Institute of Standards and Technology (NIST) - *The NIST Guide for the use of the International System of Units* - Appendix B, subsections B.8 Factors for Units Listed Alphabetically and B.9 Factors for units listed by kind of quantity or field of science.

Lide, David R., Daniel (Editor-in-Chief). *CRC Handbook of Chemistry and Physics, 89th Edition* New York, NY: CRC Press, p. 1-28, 2008.

Wikipedia contributors. "Conversion of units" Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, last visited 24 Jun. 2011.

**Cite this content, page or calculator as:**

Furey, Edward "Weight (Mass) Conversion Calculator" From *http://www.CalculatorSoup.com* - Online Calculator Resource.