Weight and Mass Converter

A metric unit used for extremely small masses.

Also written as micrograms, mcg.

A metric unit used for very small masses.

Also written as milligrams, mgs.

A metric unit used for small masses.

Also written as grams, gr.

The SI base unit for mass.

Also written as kilograms, kgs, kilo, kilos.

A customary unit used for light weights.

Also written as ounce, ounces, ozs.

A customary unit used for body weight and shipping.

Also written as pound, pounds, lbs, lbm.

A British customary unit often used for body weight.

Also written as stone, stones.

A metric unit for large masses.

Also written as metric ton, metric tons, tonne, tonnes.

A metric unit for heavy mass.

Also written as tonne, tonnes, metric tonne, metric tonnes.

An imperial ton used for heavy mass.

Also written as long ton, long tons.

A US customary ton used for heavy mass.

Also written as short ton, short tons, us ton, us tons.

A small mass unit used for gemstones.

Also written as carats.

A tiny mass unit used for atoms and molecules.

Also written as amu, dalton, daltons, Da.

Exagram is a metric mass unit built from decimal SI prefixes.

Petagram is a metric mass unit built from decimal SI prefixes.

Teragram is a metric mass unit built from decimal SI prefixes.

Gigagram is a metric mass unit built from decimal SI prefixes.

Megagram is a metric mass unit built from decimal SI prefixes.

Hectogram is a metric mass unit built from decimal SI prefixes.

Dekagram is a metric mass unit built from decimal SI prefixes.

Decigram is a metric mass unit built from decimal SI prefixes.

Centigram is a metric mass unit built from decimal SI prefixes.

Nanogram is a metric mass unit built from decimal SI prefixes.

Picogram is a metric mass unit built from decimal SI prefixes.

Femtogram is a metric mass unit built from decimal SI prefixes.

Attogram is a metric mass unit built from decimal SI prefixes.

Dalton is a scientific mass unit for atomic, particle, or theoretical scales.

Kilogram-force square second per meter is a specialist mass unit for less common conversion scenarios.

Kilopound is a specialist mass unit for less common conversion scenarios.

Kip is a specialist mass unit for less common conversion scenarios.

Slug is a specialist mass unit for less common conversion scenarios.

Pound-force square second per foot is a specialist mass unit for less common conversion scenarios.

Pound (troy or apothecary) is a trade, apothecary, or precious-metal mass unit.

Ounce (troy) is a trade, apothecary, or precious-metal mass unit.

Ounce (apothecary) is a trade, apothecary, or precious-metal mass unit.

Dram (avoirdupois) is a trade, apothecary, or precious-metal mass unit.

Dram (apothecary) is a trade, apothecary, or precious-metal mass unit.

Poundal is a specialist mass unit for less common conversion scenarios.

Ton (assay) US is a trade, apothecary, or precious-metal mass unit.

Ton (assay) UK is a trade, apothecary, or precious-metal mass unit.

Kiloton (metric) is a bulk mass unit for commerce, freight, or traditional weighing.

Quintal (metric) is a bulk mass unit for commerce, freight, or traditional weighing.

Hundredweight US is a bulk mass unit for commerce, freight, or traditional weighing.

Hundredweight UK is a bulk mass unit for commerce, freight, or traditional weighing.

Quarter US is a bulk mass unit for commerce, freight, or traditional weighing.

Quarter UK is a bulk mass unit for commerce, freight, or traditional weighing.

Stone US is a bulk mass unit for commerce, freight, or traditional weighing.

Pennyweight is a trade, apothecary, or precious-metal mass unit.

Scruple (apothecary) is a trade, apothecary, or precious-metal mass unit.

Grain is a trade, apothecary, or precious-metal mass unit.

Gamma is a specialist mass unit for less common conversion scenarios.

Talent (Biblical Hebrew) is a historical mass unit from biblical-era measurement systems.

Mina (Biblical Hebrew) is a historical mass unit from biblical-era measurement systems.

Shekel (Biblical Hebrew) is a historical mass unit from biblical-era measurement systems.

Bekan (Biblical Hebrew) is a historical mass unit from biblical-era measurement systems.

Gerah (Biblical Hebrew) is a historical mass unit from biblical-era measurement systems.

Talent (Biblical Greek) is a historical mass unit from biblical-era measurement systems.

Mina (Biblical Greek) is a historical mass unit from biblical-era measurement systems.

Tetradrachma (Biblical Greek) is a historical mass unit from biblical-era measurement systems.

Didrachma (Biblical Greek) is a historical mass unit from biblical-era measurement systems.

Drachma (Biblical Greek) is a historical mass unit from biblical-era measurement systems.

Denarius (Biblical Roman) is a historical mass unit from biblical-era measurement systems.

Assarion (Biblical Roman) is a historical mass unit from biblical-era measurement systems.

Quadrans (Biblical Roman) is a historical mass unit from biblical-era measurement systems.

Lepton (Biblical Roman) is a historical mass unit from biblical-era measurement systems.

Planck Mass is a scientific mass unit for atomic, particle, or theoretical scales.

Electron Mass (rest) is a scientific mass unit for atomic, particle, or theoretical scales.

Muon Mass is a scientific mass unit for atomic, particle, or theoretical scales.

Proton Mass is a scientific mass unit for atomic, particle, or theoretical scales.

Neutron Mass is a scientific mass unit for atomic, particle, or theoretical scales.

Deuteron Mass is a scientific mass unit for atomic, particle, or theoretical scales.

Earth's Mass is an astronomical mass reference.

Sun's Mass is an astronomical mass reference.