Weight Converters
Convert weight and mass between kilograms, pounds, ounces, grams, stones, and tons. Essential for cooking, shipping, fitness tracking, and international trade. See also our KG to LBS, Grams to Ounces, and Pounds to Stone converters.
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Popular Weight Converters:
What is a Weight Converter?
A weight converter is a tool that converts measurements between different units of mass and weight such as kilograms, pounds, ounces, grams, and tons. It is widely used in cooking, shipping, fitness, science, and international trade where different weight systems are standard.
How to Convert Weight Units
Select the unit you want to convert from and the unit you want to convert to using the dropdown menus. Enter your value in the input field and the converter will instantly display the equivalent weight in your target unit. Use the popular conversion links below for quick access to common weight conversions.
Weight Conversion Formulas
History of Weight Measurement
Weight measurement originated with the beam balance in ancient Egypt and Mesopotamia around 3000 BCE. The pound has roots in the Roman libra, while the kilogram was defined during the French Revolution as the mass of one liter of water. In 2019, the kilogram was redefined based on the Planck constant, making it the last SI base unit freed from a physical artifact.
About This Weight Converter
This weight converter supports over 60 units including kilograms, grams, milligrams, pounds, ounces, metric tons, short tons, long tons, stone, carats, grains, slugs, and atomic mass units. It handles metric, imperial, and US customary weight systems with high precision.
Frequently Asked Questions
How many pounds are in a kilogram?
There are approximately 2.20462 pounds in one kilogram. To convert kg to lbs, multiply the kilogram value by 2.20462.
What is the difference between mass and weight?
Mass is the amount of matter in an object (measured in kilograms), while weight is the force of gravity on that mass (measured in newtons). In everyday use, the terms are used interchangeably.
How many grams are in an ounce?
There are approximately 28.3495 grams in one ounce (avoirdupois). For troy ounces used in precious metals, one troy ounce equals 31.1035 grams.
How do I convert stones to pounds?
Multiply the number of stones by 14 to get pounds. For example, 10 stone = 140 pounds. The stone is commonly used in the UK and Ireland for body weight.
What is the difference between a short ton and a metric ton?
A short ton (US ton) equals 2,000 pounds (907.185 kg). A metric ton (tonne) equals 1,000 kilograms (2,204.62 pounds). A metric ton is about 10% heavier than a short ton.
Metric Conversion Factor Tables for Weight Converter
| Units to convert | Multiply By The Number | Convert as Unit |
|---|---|---|
| Grains (gr) | 0.0648 | Grams (g) |
| Grams (g) | 0.002205 | Pounds (lbs) |
| Metric Tons (t) | 0.9842 | Tons (long 2240lb) |
| Metric Tons (t) | 1.1023 | Tons (short 2000lb) |
| Grains (gr) | 0.0000648 | Kilograms (kg) |
| Grams (g) | 15.4324 | Grains (gr) |
| Pounds (lbs) | 0.4535925 | Kilograms (kg) |
| Tons (long 2240lb) | 1.016 | Metric Tons (t) |
| Tons (short 2000lb) | 907.1848 | Kilograms (kg) |
| Tons (short 2000lb) | 0.9072 | Metric Tons (t) |
| Ounce (oz) | 28.35 | Grams (g) |
| Pounds (lbs) | 453.592 | Grams (g) |
| Ton | 907.185 | Kilograms (kg) |
| Long Ton | 1016.047 | Kilograms (kg) |
Weightconverters & it's abbreviations
| Unit | Abbreviation | Unit | Abbreviation | Unit | Abbreviation |
|---|---|---|---|---|---|
| Kilogram | kg | Gram | g | Milligram | mg |
| Metric Ton | t | Pound | lbs | Ounce | oz |
| Carat | car, ct | Short Ton (US) | ton | Long Ton (UK) | ton |
| Atomic Mass Unit | Da, u | Stone (UK) | st | Grain | gr |
| Pennyweight | pwt | Slug | slug | Hundredweight (US) | cwt |
| Hundredweight (UK) | cwt | Microgram | µg | Nanogram | ng |
Complete list of Weight conversion units and its conversion.
- 1 kilogram [kg] = 1000 gram [g]
kg to g → - 1 kilogram [kg] = 2.2046226218 pound [lbs]
kg to lbs → - 1 kilogram [kg] = 35.2739619496 ounce [oz]
kg to oz →
- 1 kilogram [kg] = 0.1574730444 stone (UK)
kg to stone → - 1 gram [g] = 0.001 kilogram [kg]
g to kg → - 1 gram [g] = 1000 milligram [mg]
g to mg →
- 1 gram [g] = 15.4323583529 grain [gr]
g to grain → - 1 milligram [mg] = 0.001 gram [g]
mg to g → - 1 milligram [mg] = 0.000001 kilogram [kg]
mg to kg →
- 1 ton (metric) [t] = 1000 kilogram [kg]
metric ton to kg → - 1 ton (metric) [t] = 2204.6226218 pound [lbs]
metric ton to lbs → - 1 ton (metric) [t] = 1000000 gram [g]
metric ton to g →
- 1 pound [lbs] = 453.59237 gram [g]
pounds to grams → - 1 pound [lbs] = 16 ounce [oz]
pounds to ounces → - 1 pound [lbs] = 453592.37 milligram [mg]
lbs to mg →
- 1 ounce [oz] = 28.349523125 gram [g]
ounces to grams → - 1 ounce [oz] = 0.028349523 kilogram [kg]
oz to kg → - 1 ounce [oz] = 0.0625 pound [lbs]
ounces to pounds →
- 1 carat [car, ct] = 0.0002 kilogram [kg]
carat to kg → - 1 carat [car, ct] = 0.2 gram [g]
carat to g → - 1 carat [car, ct] = 200 milligram [mg]
carat to mg →
- 1 ton (short) (US) = 0.90718474 ton (metric) [t]
short ton to metric ton → - 1 ton (long) (UK) = 1016.0469088 kilogram [kg]
long ton to kg → - 1 ton (long) (UK) = 2240 pound [lbs]
long ton to lbs →
- 1 stone (UK) = 6350.29318 gram [g]
stone to g → - 1 grain [gr] = 0.00006479891 kilogram [kg]
grain to kg → - 1 grain [gr] = 0.06479891 gram [g]
grain to g →
- 1 hundredweight (US) = 45.359237 kilogram [kg]
cwt (US) to kg → - 1 hundredweight (US) = 100 pound [lbs]
cwt (US) to lbs → - 1 hundredweight (UK) = 50.80234544 kilogram [kg]
cwt (UK) to kg →
- 1 scruple [s.ap] = 0.0012959782 kilogram [kg]
scruple to kg → - 1 scruple [s.ap] = 1.2959782 gram [g]
scruple to g → - 1 microgram [µg] = 0.000001 milligram [mg]
µg to mg →
- 1 quarter (US) [qr] = 11.33980925 kilogram [kg]
quarter (US) to kg → - 1 quarter (US) [qr] = 25 pound [lbs]
quarter (US) to lbs → - 1 quarter (UK) [qr] = 12.70058636 kilogram [kg]
quarter (UK) to kg →
- 1 poundal [pdl] = 0.014098081 kilogram [kg]
poundal to kg → - 1 hectogram [hg] = 0.1 kilogram [kg]
hg to kg → - 1 hectogram [hg] = 100 gram [g]
hg to g →
- 1 centigram [cg] = 0.01 gram [g]
cg to g → - 1 Atomic mass unit [Da] = 1.66053e-27 kilogram [kg]
amu to kg → - 1 Atomic mass unit [Da] = 1.66053e-24 gram [g]
amu to g →
- 1 kilogram [kg] = 1000000 milligram [mg]
kg to mg → - 1 kilogram [kg] = 0.001 ton (metric) [t]
kg to metric ton → - 1 kilogram [kg] = 5000 carat [car, ct]
kg to carat →
- 1 gram [g] = 0.0022046226 pound [lbs]
g to lbs → - 1 gram [g] = 0.0352739619 ounce [oz]
grams to ounces → - 1 gram [g] = 5 carat [car, ct]
g to carat →
- 1 milligram [mg] = 1000 microgram [µg]
mg to µg → - 1 milligram [mg] = 0.0000022046 pound [lbs]
mg to lbs → - 1 milligram [mg] = 0.005 carat [car, ct]
mg to carat →
- 1 ton (metric) [t] = 1.1023113109 ton (short) (US)
metric ton to short ton → - 1 ton (metric) [t] = 0.9842065276 ton (long) (UK)
metric ton to long ton → - 1 pound [lbs] = 0.45359237 kilogram [kg]
lbs to kg →
- 1 pound [lbs] = 0.0714285714 stone (UK)
pounds to stone → - 1 pound [lbs] = 7000 grain [gr]
lbs to grain → - 1 pound [lbs] = 0.0005 ton (short) (US)
lbs to short ton →
- 1 ounce [oz] = 28349.523125 milligram [mg]
oz to mg → - 1 ounce [oz] = 437.5 grain [gr]
oz to grain → - 1 ounce [oz] = 141.747615625 carat [car, ct]
oz to carat →
- 1 carat [car, ct] = 0.00705479239 ounce [oz]
carat to oz → - 1 ton (short) (US) = 907.18474 kilogram [kg]
short ton to kg → - 1 ton (short) (US) = 2000 pound [lbs]
tons to pounds →
- 1 ton (long) (UK) = 1.0160469088 ton (metric) [t]
long ton to metric ton → - 1 stone (UK) = 6.35029318 kilogram [kg]
stone to kg → - 1 stone (UK) = 14 pound [lbs]
stone to pounds →
- 1 grain [gr] = 64.79891 milligram [mg]
grain to mg → - 1 slug = 14.593902937 kilogram [kg]
slug to kg → - 1 slug = 32.1740486 pound [lbs]
slug to lbs →
- 1 hundredweight (UK) = 112 pound [lbs]
cwt (UK) to lbs → - 1 pennyweight [pwt] = 0.00155517384 kilogram [kg]
pwt to kg → - 1 pennyweight [pwt] = 1.55517384 gram [g]
pwt to g →
- 1 microgram [µg] = 1e-9 kilogram [kg]
µg to kg → - 1 nanogram [ng] = 0.001 microgram [µg]
ng to µg → - 1 nanogram [ng] = 1e-12 kilogram [kg]
ng to kg →
- 1 quarter (UK) [qr] = 28 pound [lbs]
quarter (UK) to lbs → - 1 pound (troy) [lb t] = 0.3732417216 kilogram [kg]
troy pound to kg → - 1 pound (troy) [lb t] = 373.2417216 gram [g]
troy pound to g →
- 1 dekagram [dag] = 10 gram [g]
dag to g → - 1 dekagram [dag] = 0.01 kilogram [kg]
dag to kg → - 1 decigram [dg] = 0.1 gram [g]
dg to g →