Home › Weight and Mass
Weight and Mass converter
Mass, from micrograms to tons. 16 units, converted from one table of exact factors.
—
Worth knowing. An ounce of gold and an ounce of flour are not the same weight — gold is sold in troy ounces, which are about 10% heavier. Both are in the table.
1 kilogram in every other weight and mass unit
Computed by the same engine that runs the converter above, so these can never drift apart from it.
| From | Equals | Unit |
|---|---|---|
| 1 kilogram | 1,000 | gram (g) |
| 1 kilogram | 1,000,000 | milligram (mg) |
| 1 kilogram | 1,000,000,000 | microgram (µg) |
| 1 kilogram | 0.001 | metric ton (t) |
| 1 kilogram | 2.2046226 | pound (lb) |
| 1 kilogram | 35.273962 | ounce (oz) |
| 1 kilogram | 0.15747304 | stone (st) |
| 1 kilogram | 0.0011023113 | US ton (ton) |
| 1 kilogram | 0.00098420653 | long ton (long ton) |
| 1 kilogram | 5,000 | carat (ct) |
| 1 kilogram | 15,432.358 | grain (gr) |
| 1 kilogram | 32.150747 | troy ounce (oz t) |
| 1 kilogram | 2.6792289 | troy pound (lb t) |
| 1 kilogram | 564.38339 | dram (dr) |
| 1 kilogram | 0.068521766 | slug (slug) |
What each unit actually is
Most converters give you a number and stop. Where a figure is exact by definition we say so, and where it is an average or shifts with conditions we say that too — that is usually the thing you needed to know.
| Unit | Symbol | What it actually is |
|---|---|---|
| kilogram | kg | The SI base unit. Redefined in 2019 in terms of the Planck constant, so it no longer depends on a metal cylinder in Paris. |
| gram | g | One thousandth of a kilogram. Exact. |
| milligram | mg | One millionth of a kilogram. Exact. |
| microgram | µg | One billionth of a kilogram. |
| metric ton | t | 1,000 kg. Exact. Also called a tonne. |
| pound | lb | Exactly 0.45359237 kg since 1959. |
| ounce | oz | One sixteenth of a pound. Exact. |
| stone | st | 14 pounds. Exact. Still used for body weight in Britain and Ireland. |
| US ton | ton | 2,000 pounds. Exact. Also called a short ton. |
| long ton | long ton | 2,240 pounds. Exact. The British ton. |
| carat | ct | Exactly 200 mg since 1907. Used for gemstones. |
| grain | gr | One 7,000th of a pound. Exact. Used for bullets and medicines. |
| troy ounce | oz t | Exact. Heavier than an ordinary ounce; used for precious metals. |
| troy pound | lb t | 12 troy ounces. Exact. Lighter than an ordinary pound. |
| dram | dr | One sixteenth of an ounce. Exact. |
| slug | slug | The imperial unit of mass. One slug accelerates at 1 ft/s² under one pound of force. |
Every converter on the site
LengthVolumeAreaSpeedTimePressureEnergyPowerData StorageAngleTemperatureFuel economyForceDensityTorqueAccelerationFrequencyFlowElectric chargeElectric currentVoltageElectric resistanceIlluminationSoundTypographyData transferAngular velocityAngular accelerationSpecific volumeMoment of inertiaVolume (dry)Metric prefixesLuminanceLuminous intensityMagnetic fluxMagnetic flux densityMagnetomotive forceMagnetic field strengthFuel efficiency (mass)Fuel efficiency (volume)Temperature intervalThermal expansionThermal resistanceThermal conductivitySpecific heat capacityHeat densityHeat flux densityHeat transfer coefficientRadiation (dose equivalent)Radiation (activity)Radiation (exposure)Radiation (absorbed dose)Volume (lumber)Moment of forceDigital image resolutionFlow (mass)Flow (molar)Mass flux densityConcentration (molar)Concentration (solution)Viscosity (dynamic)Viscosity (kinematic)Surface tensionPermeability (vapour)Linear charge densitySurface charge densityVolume charge densityLinear current densitySurface current densityElectric field strengthElectric resistivityElectric conductanceElectric conductivityCapacitanceInductance