The Mass and Weight Unit Conversion Calculator helps you to convert quickly and accurately between different units of measurement including kilograms, ounces and pounds.
- Metric ton (t) converter
- Long ton (lt) converter
- Short ton (tn) converter
- Kilogram (kg) converter
- Decagram (dag) converter
- Gram (g) converter
- Milligram (mg) converter
- Ounce (oz) converter
- Pound (lbs) converter
- Carat (ct) converter
How shall I use the Mass and weight unit converter?
Select the unit of mass you want to convert from, then the unit you want to convert to. Then enter the mass value you want to convert in the box below. The conversion happens immediately. Our Mass Unit Conversion Calculator works in both directions: If you enter a value in the other field, it can also change the unit back from it. You can also decide how many decimal places you would like to see in the result. If you click on the Clear button, you can delete the digits you have already entered.
Which units of measurement does the Mass and Weight Unit Conversion Calculator know?
Conversion can be run between the following units of mass and weight*:
- Units of the SI system: kilogram (derived units: dekagram, gram, milligram).
- Non-SI units: ton, quintal, carat
- British (Imperial) or US (customary) units: pound (lb), ounce (oz)
*The range of units of weight and mass may be extended on request.
How shall I convert between units of mass or weight?
First, a short sidenote: In everyday life, we often use the word “weight” to refer to mass, even though the two concepts are not exactly the same. Mass is a property of physical bodies that measures their inertia. Unlike weight, mass remains the same wherever the physical body is placed (i.e. the mass is constant).
Conversion between mass units usually involves a simple multiplication or division. You only have to know the correct conversion rate. This piece of information is enough to be able to convert 1 kg into grams. Let’s take a simple example!
Let’s say that you want to find out how many grams 5 kilograms weigh. We know that 1 kg = 1000 g (so this is the conversion rate between kg and g). So if you want to calculate how many grams 5 kilograms are, you need to do the following:
- You only have to multiply 5 with the conversion rate (i.e. with 1,000).
- The result is 5,000, so 5 kg = 5,000 g.
- OK, but what if you want to make a conversion in the opposite direction? If you want to convert from grams to kilograms, you have to use the conversion rate mentioned above. Yet, this is the opposite direction, so instead of multiplication, we use the conversion rate for division. In this example it means:
- You would like to know how many kilograms 5000 grams is.
- Divide 5000 by 1000.
- The result is: 5 (kg).
Weight and Mass Unit Conversion Chart
These are the most common and most frequently searched mass unit conversions:
(Results are rounded to 4 digits.)
| METRIC TON (t) |
| 1 metric ton (t) = 0.9842 long tons (lt) |
| 1 metric ton (t) = 1.1023 short tons (tn) |
| 1 metric ton (t) = 1000 kilograms (kg) |
| 1 metric ton (t) = 100000 decagrams (dag) |
| 1 metric ton (t) = 1000000 grams (g) |
| 1 metric ton (t) = 1000000000 milligrams (mg) |
| 1 metric ton (t) = 35273.9619 ounces (oz) |
| 1 metric ton (t) = 2204.6226 pounds (lbs) |
| 1 metric ton (t) = 5000000 carats (ct) |
| LONG TON (lt) |
| 1 long ton (lt) = 1.016 metric tons (t) |
| 1 long ton (lt) = 1.12 short tons (tn) |
| 1 long ton (lt) = 1016.0469 kilograms (kg) |
| 1 long ton (lt) = 101604.6909 decagrams (dag) |
| 1 long ton (lt) = 1016046.9088 grams (g) |
| 1 long ton (lt) = 1016046908.8 milligrams (mg) |
| 1 long ton (lt) = 35839.9999 ounces (oz) |
| 1 long ton (lt) = 2240 pounds (lbs) |
| 1 long ton (lt) = 5080234.544 carats (ct) |
| SHORT TON (tn) |
| 1 short ton (tn) = 0.9072 metric tons (t) |
| 1 short ton (tn) = 0.8929 long tons (lt) |
| 1 short ton (tn) = 907.1847 kilograms (kg) |
| 1 short ton (tn) = 90718.474 decagrams (dag) |
| 1 short ton (tn) = 907184.74 grams (g) |
| 1 short ton (tn) = 907184740 milligrams (mg) |
| 1 short ton (tn) = 32000 ounces (oz) |
| 1 short ton (tn) = 2000 pounds (lbs) |
| 1 short ton (tn) = 4535923.7 carats (ct) |
| KILOGRAM (kg) |
| 1 kilogram (kg) = 0.001 metric tons (t) |
| 1 kilogram (kg) = 0.001 long tons (lt) |
| 1 kilogram (kg) = 0.0011 short tons (tn) |
| 1 kilogram (kg) = 100 decagrams (dag) |
| 1 kilogram (kg) = 1000 grams (g) |
| 1 kilogram (kg) = 1000000 milligrams (mg) |
| 1 kilogram (kg) = 35.274 ounces (oz) |
| 1 kilogram (kg) = 2.2046 pounds (lbs) |
| 1 kilogram (kg) = 5000 carats (ct) |
| DECAGRAM (dag) |
| 1 decagram (dag) = 0 metric tons (t) |
| 1 decagram (dag) = 0 long tons (lt) |
| 1 decagram (dag) = 0 short tons (tn) |
| 1 decagram (dag) = 0.01 kilograms (kg) |
| 1 decagram (dag) = 10 grams (g) |
| 1 decagram (dag) = 10000 milligrams (mg) |
| 1 decagram (dag) = 0.3527 ounces (oz) |
| 1 decagram (dag) = 0.022 pounds (lbs) |
| 1 decagram (dag) = 50 carats (ct) |
| GRAM (g) |
| 1 gram (g) = 0 metric tons (t) |
| 1 gram (g) = 0 long tons (lt) |
| 1 gram (g) = 0 short tons (tn) |
| 1 gram (g) = 0.001 kilograms (kg) |
| 1 gram (g) = 0.1 decagrams (dag) |
| 1 gram (g) = 1000 milligrams (mg) |
| 1 gram (g) = 0.0353 ounces (oz) |
| 1 gram (g) = 0.0022 pounds (lbs) |
| 1 gram (g) = 5 carats (ct) |
| MILLIGRAM (mg) |
| 1 milligram (mg) = 0 metric tons (t) |
| 1 milligram (mg) = 0 long tons (lt) |
| 1 milligram (mg) = 0 short tons (tn) |
| 1 milligram (mg) = 0 kilograms (kg) |
| 1 milligram (mg) = 0.0001 decagrams (dag) |
| 1 milligram (mg) = 0.001 grams (g) |
| 1 milligram (mg) = 0 ounces (oz) |
| 1 milligram (mg) = 0 pounds (lbs) |
| 1 milligram (mg) = 0.005 carats (ct) |
| OUNCE (oz) |
| 1 ounce (oz) = 0 metric tons (t) |
| 1 ounce (oz) = 0 long tons (lt) |
| 1 ounce (oz) = 0 short tons (tn) |
| 1 ounce (oz) = 0.0283 kilograms (kg) |
| 1 ounce (oz) = 2.835 decagrams (dag) |
| 1 ounce (oz) = 28.3495 grams (g) |
| 1 ounce (oz) = 28349.5232 milligrams (mg) |
| 1 ounce (oz) = 0.0625 pounds (lbs) |
| 1 ounce (oz) = 141.7476 carats (ct) |
| POUND (lbs) |
| 1 pound (lbs) = 0.0005 metric tons (t) |
| 1 pound (lbs) = 0.0004 long tons (lt) |
| 1 pound (lbs) = 0.0005 short tons (tn) |
| 1 pound (lbs) = 0.4536 kilograms (kg) |
| 1 pound (lbs) = 45.3592 decagrams (dag) |
| 1 pound (lbs) = 453.5924 grams (g) |
| 1 pound (lbs) = 453592.3704 milligrams (mg) |
| 1 pound (lbs) = 16 ounces (oz) |
| 1 pound (lbs) = 2267.9619 carats (ct) |
| CARAT (ct) |
| 1 carat (ct) = 0 metric tons (t) |
| 1 carat (ct) = 0 long tons (lt) |
| 1 carat (ct) = 0 short tons (tn) |
| 1 carat (ct) = 0.0002 kilograms (kg) |
| 1 carat (ct) = 0.02 decagrams (dag) |
| 1 carat (ct) = 0.2 grams (g) |
| 1 carat (ct) = 200 milligrams (mg) |
| 1 carat (ct) = 0.0071 ounces (oz) |
| 1 carat (ct) = 0.0004 pounds (lbs) |
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