Mass units converter
Mass (weight) units converter - converts units between metric (tons, kilograms, etc.), Avoirdupois/US (pounds, ounces) and troy systems

# Inputs data - value and unit, which we're going to convert

 Value Unit kiloton (gigagram) [kton, Gg]ton (megagram) [ton, Mg]quintal [q]kilonewton [kN]kilogram [kg]hectogram [hg]decagram [dag]gram [g]carat [ct]centigram [cg]milligram [mg]microgram [µg]nanogram [ng]atomic mass unit [u]long ton [ton]short ton [sh tn]long hundredweight [cwt]short hundredweight [sh cwt]stone [st]pound [lb av]ounce [oz av]dram [dr av]grain [gr]pound [lb t]ounce [oz t]dram [dr t]pennyweight [dwt, pwt]scruple [s ap]grain [gr]carat [kt]mitedoite Decimals 0123456789

# metric

 Unit Symbol Symbol(plain text) Value Notes kiloton (gigagram) Show source$kton$ kton, Gg 0.000001 Equivalent to one thousand tons or one million kilograms. See ton unit for more information.$1\ kton = 1000\ ton = 10^6\ kg$ ton (megagram) Show source$ton$ ton, Mg 0.001 Equivalent to one thousand kilograms or one million grams. See the kilo unit to learn more.$1\ ton = 1000\ kg = 10^6\ g$ quintal Show source$q$ q 0.01 Unit of mass used in agriculture. One quintal corresponds to one hundred kilograms (100 kg). See the kilogram unit to learn more.$1\ q = 100\ kg$ kilonewton Show source$kN$ kN 0.009806652 Colloquially equivalent to the mass of the body, which when placed in the gravitational field of the Earth will act on the force of one kilonewton. Since in the formal language newton is a forc eunit, not mass, the use of this phrase is not currently recommended.$1\ kN\ (mass) = \frac{1000\ N}{\text{gravitational acceleration}} \approx \frac{1000\ kg \cdot \cancel{m/s^2}}{9.81\ \cancel{m/s^2}} \approx 101.9716005\ kg$ kilogram Show source$kg$ kg 1 The basic unit of mass in SI system. From May 20, 2019, the following kilogram definition applies: „Kilogram, kg, unit of mass in SI. It is defined by adopting the set numerical value of the Planck constant h, which is 6.62607015⋅10 −34 , expressed in the unit J · s, which is equal to kg⋅m2 ⋅s-1, with the meter and second being defined by c and ∆νCs.” hectogram Show source$hg$ hg 10 One hundred grams or one tenth of a kilogram. See the kilo unit to learn more.$1\ hg = 100\ g = \frac{1}{10}\ kg$ decagram Show source$dag$ dag 100 Ten grams or one hundredth of a kilogram.$1\ dag = 10\ g = \frac{1}{100}\ kg$ gram Show source$g$ g 1000 One thousandth of a kilo. Before the spread of SI units, it was the basic mass unit in the centimeter-gram-second system (CGS). See the kilogram unit to learn more.$1\ g = \frac{1}{1000}\ kg$ carat Show source$ct$ ct 5000 A unit of mass used in jewelry to determine the weight of stones and pearls, as well as the purity of gold. One carat corresponds to two tenths of a gram (0.2 g). See the gram unit to learn more.$1\ ct = \frac{2}{10}\ g = 0.2\ g$ centigram Show source$cg$ cg 100000 Equivalent to one hundredth of a gram. See the gram unit to learn more.$1\ cg = \frac{1}{100}\ g = 0.01\ g$ milligram Show source$mg$ mg 1000000 Equivalent to one millionth of a gram. Unit often used in chemistry for weighing reagents on a laboratory scale. See the gram unit to learn more.$1\ mg = \frac{1}{1000}\ g = 0.001\ g$ microgram Show source$\mu g$ µg 1000000000 Equivalent to one millionth of a gram. See the gram unit to learn more.$1\ \mu g = 10^{-6}\ g$ nanogram Show source$ng$ ng 1×1012 Equivalent to one billionth of a gram. See the gram unit to learn more.$1\ ng = 10^{-9}\ g$ atomic mass unit Show source$u$ u 6.022141287×1026 A unit of mass used in chemistry and atomic physics. Another name for this unit is dalton. One dalton corresponds to one twelfth of the mass of a carbon atom 12C, which is approximately the mass of one hydrogen atom.$1\ u = \frac{1}{12} m_{^{12}C} \approx m_{H}$

# Avoirdupois, U.S.

 Unit Symbol Symbol(plain text) Value Notes long ton Show source$ton$ ton 0.000984207 Equivalent to two thousand two hundred and forty US pounds (2240 lbs). See the pound unit for more information.$1\ ton = 2240\ lbs$ short ton Show source$\text{sh tn}$ sh tn 0.001102311 Equivalent to two thousand US pounds (2000 lbs). See the pound unit for more information.$1\ ton = 2000\ lbs$ long hundredweight Show source$cwt$ cwt 0.019684131 Equivalent to one hundred and twelve US pounds (112 lbs). See the pound unit for more information.$1\ cwt = 112\ lbs$ short hundredweight Show source$\text{sh cwt}$ sh cwt 0.022046226 Equivalent to one hundred US pounds (100 lbs) . See the pound unit for more information.$1\ sh\ cwt = 100\ lbs$ stone Show source$st$ st 0.157473044 Unit of mass used in Great Britain. One stone corresponds to fourteen pounds (14 lbs). See the pound unit for more information.$1\ st = 14\ lbs$ pound Show source$\text{lb av}$ lb av 2.204622622 Unit of mass used in Anglo-Saxon countries. One international pound corresponds to approximately four hundred and fifty grams.$1\ lb = 0.45359237\ kg$ ounce Show source$\text{oz av}$ oz av 35.27396195 Equivalent to one sixteenth pound. See the pound unit for more information.$1\ oz\ av = \frac{1}{16}\ lb$ dram Show source$\text{dr av}$ dr av 564.383391293 Equivalent to one sixteenth ounce or one two hundred and fifty sixths of a pound. See ounce or pound units for more information.$1\ dr = \frac{1}{16}\ oz = \frac{1}{256}\ lb$ grain Show source$gr$ gr 15432.3583529 Equivalent to 1/7000 pounds. See the pound unit for more information.$1\ gr = \frac{1}{7000}\ lb$

# troy & apothecaries

 Unit Symbol Symbol(plain text) Value Notes pound Show source$\text{lb t}$ lb t 2.679228881 Historic mass unit used until 1879 in Great Britain to determine the mass of precious metals. One troy pound corresponded to approximately one third of a kilogram.$1\ lb\ t = 0.373241722\ kg$ ounce Show source$\text{oz t}$ oz t 32.150746569 Equivalent to one-twelfth of troy pound. See the troy pound unit for more information.$1\ oz\ t = \frac{1}{12}\ lb\ t$ dram Show source$\text{dr t}$ dr t 257.205972549 Equivalent to one-eighth of troy ounce (1/8 oz t) or one-ninety-sixth of troy pound (1/96 lb t). See troy ounce or pund to learn more.$1\ oz\ t = 1\ dr\ t = \frac{1}{8}\ oz\ t = \frac{1}{96}\ lb\ t$ pennyweight Show source$\text{dwt}$ dwt, pwt 643.014931373 Equivalent to one two hundred forty troy pounds (1/240 lb t) or one twentieth troy ounce (1/20 oz t). See troy pound or ounce units to learn more.$1\ dwt = \frac{1}{20}\ oz\ t = \frac{1}{240}\ lb\ t$ scruple Show source$\text{s ap}$ s ap 771.617917647 Equivalent to one-third of troy dram (1/3 dr t) or one two hundred eighty-eight of troy pound (1/288 lb t). See troy dram or pound units to learn more.$1\ s\ ap = \frac{1}{3}\ dr\ t = \frac{1}{288}\ dr\ t$ grain Show source$\text{gr}$ gr 15432.3583529 Equivalent to twenty scruples (20 s ap) or 1/5760 of troy pound. See the scruple of troy pound units to learn more.$1\ gr\ t = 20\ ap\ s = \frac{1}{5760}\ lb\ t$ carat Show source$\text{kt}$ kt 48733.7632199 Equivalent to three and one sixth of troy grains (3 1/6 gr t). See the troy grain unit to learn more.$1\ kt\ t = 3 \frac{1}{6}\ gr\ t = \frac{19}{34560}\ lb\ t$ mite Show source$-$ - 308647.167059 Equivalent to four hundred scruples (400 s ap) or 1/115200 of troy pound. See the scruple or troy pound units to learn more.$1\ \text{mite (troy)} = 400\ ap\ s = \frac{1}{115200}\ lb\ t$ doite Show source$-$ - 7407532.00941 Equivalent to twenty-four mites (24 mite) or 1/2764800 of troy pound. See unit or troy pound units to learn more.$1\ \text{doite (troy)} = 24\ \text{mite (troy)} = \frac{1}{2764800}\ lb\ t$

# Some facts

• The mass is a measure of the amount of substance.
• The mass conception is closely related to the concept of inertia. This is a feature of material objects, which basically means that the body once set in motion retains its speed as long as it will not work on any external forces.
• The mass of body also determines the gravitation force. Any two bodies interact with force directly proportional to the product of their masses.
• There are objects without mass for example photons.
• In the first half of the twentieth century, Einstein created theory saying there is equivalence of mass and energy. This theory is related to one of the most famous physical formulas: E = mc2. The theory has been confirmed experimentally and succesfully applied to create nucler power plant and nuclear weapon. In both cases the energy is "created", while loss of mass is noticed. In other words, the mass is converted into energy.

# How to convert

• Enter the number to field "value" - enter the NUMBER only, no other words, symbols or unit names. You can use dot (.) or comma (,) to enter fractions.
Examples:
• 1000000
• 123,23
• 999.99999
• Find and select your starting unit in field "unit". Some unit calculators have huge number of different units to select from - it's just how complicated our world is...
• And... you got the result in the table below. You'll find several results for many different units - we show you all results we know at once. Just find the one you're looking for.

# Tags and links to this website

Tags:
Tags to Polish version: