The ** conversion calculator** converts to and from **carats, grams, hectograms, kilograms, milligrams, ounces, pounds** as well as other less commonly used units (see below). Select what you want to convert from and what you want to convert to. Then press the "Conversion calculator" button.

Unit | Symbol | Description |
---|---|---|

attogram | ag | Metric system. One Quintillionth of a gram. |

attotonne | at | One quintillionth of a tonne. |

carat | CD | The carat is used to measure gems and pearls. One carat is equal to 200 mg. |

cental | cwt | Cental is another name for short hundredweight. One cental is equal to 100 pounds avoirdupois. |

centigram | cg | A hundredth of a gram in the metric system |

centitonne | ct | One hundredth of a tonne |

decagram | dag | Metric system. One decagram is 10 grams |

decatonne | dat | One decatonne is 10 tonnes |

decigram | dg | A tenth of a gram in the metric system. |

decitonne | dt | One tenth of a tonne. |

exagram | Eg | One exagram in the metric system is equal to one quadrillion (1000000000000000) kilograms. |

exatonne | Et | One exatonne is equal to one quintillion (1000000000000000000) tonnes. |

femtogram | fg | Metric system. One quadrillionth of a gram. |

femtotonne | ft | One quadrillionth of a tonne. |

gigagram | Gg | Metric system. One gigagram is equal to one million kilograms. |

gigatonne | Gt | One gigatonne is equal to one billion (1000000000) tonnes. |

grain | gr | One grain is equal to 64.79891 mg. |

gram | g | A gram, in the metric system, is equal to one thousandth of a kilogram. |

gross ton | L/T | Gross ton is another name for the long ton. It has been replaced by the metric ton for most uses. |

hectogram | hg | Metric system. One hectogram is 100 grams. |

hectotonne | ht | One hectotonne is 100 tonnes. |

hundredweight (long) | cwt | In the imperial system, the long hundredweight is equal to 112 pounds avoirdupois. |

hundredweight (short) | cwt | In US customary units, one short hundredweight is equal to 100 pounds avoirdupois. |

imperial ton | L/T | Imperial ton is another name for the long ton. It has been replaced by the metric ton for most uses. |

kilogram | kg | Metric system. Kilogram is the base unit for mass in the International System of Units. It's equal to about 2.2 lb. |

kilotonne | kt | One kilotonne is equal to 1000 tonnes. |

long ton | L/T | The long ton is equal to 2240 pounds. It has been replaced by the metric ton in most uses. |

megagram | Mg | Metric system. One megagram is one thousand kilograms. |

megatonne | Mt | One megatonne is one million tonnes. |

metric grain | gr | metric grain is a unit used to measure pearls and diamonds. One metric grain is equal to 50 mg. |

metric ton | M/T | Metric ton is another name for tonne. It's equal to one thousand kilogram. |

microgram | ug | Metric system. One millionth of a gram. |

microtonne | ut | One millionth of a tonne. |

millicentigram | mcg | An obsolete unit of measure that is equal to 10ug |

milligram | mg | A thousandth of a gram in the metric system. |

millitonne | mt | One thousandth of a tonne (one kilogram). |

nanogram | ng | Metric system. One billionth of a gram. |

nanotonne | nt | One billionth of a tonne. |

ounce | oz | One avoirdupois ounce is equal to 437.5 grains or about 28.350 grams. |

pennyweight | dwt | 1 pennyweight is equal to 24 grains. It's an obsolete unit of measure. |

petagram | Pg | Metric system. One petagram is equal to one trillion (1000000000000) kilograms. |

petatonne | Pt | Metric system. One petatonne is equal to one quadrillion (1000000000000000) tonnes. |

picogram | pg | Metric system. One trillionth of a gram. |

picotonne | pt | One trillionth of a tonne. |

pound | lb | This is the international avoirdupois pound and is equal to 16 ounces or 453.59237 grams. |

short ton | S/T | One short ton is also referred to as ton in the United States. It's equal to 2000 pounds. |

stone | st | The stone is a unit of measure in the imperial system. One stone is equal to 14 pounds. |

teragram | Tg | Metric system. One teragram is equal to one billion (1000000000) kilograms. |

teratonne | Tt | One teratonne is equal to one trillion (1000000000000) tonnes. |

ton | S/T | 1 ton (short ton) is equal to 2000 pounds. |

tonne | t | One tonne, also known as metric tonne is equal to 1000 kilograms. |

troy ounce | oz | One troy ounce is equal to 480 grains in the troy system. |

troy pound | lb | One troy pound equals 12 troy ounces. The troy pound is used for measuring precious metals and stones. |

weight ton | L/T | Weight ton is another name for the long ton. It has been replaced by the metric ton for most uses. |