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carat [pre-1913 US]
How many gigatonne in 1 carat?
The answer is 2.0E-16.
We assume you are converting between gigatonne and carat [international].
You can view more details on each measurement unit:
gigatonne or carat
The SI base unit for mass is the kilogram.
1 kilogram is equal to 1.0E-12 gigatonne, or 5000 carat.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between gigatonnes and carats.
Type in your own numbers in the form to convert the units!
1 gigatonne to carat = 5.0E+15 carat
2 gigatonne to carat = 1.0E+16 carat
3 gigatonne to carat = 1.5E+16 carat
4 gigatonne to carat = 2.0E+16 carat
5 gigatonne to carat = 2.5E+16 carat
6 gigatonne to carat = 3.0E+16 carat
7 gigatonne to carat = 3.5E+16 carat
8 gigatonne to carat = 4.0E+16 carat
9 gigatonne to carat = 4.5E+16 carat
10 gigatonne to carat = 5.0E+16 carat
You can do the reverse unit conversion from carat to gigatonne, or enter any two units below:
The SI prefix "giga" represents a factor of 109, or in exponential notation, 1E9.
So 1 gigatonne = 109 tonnes.
The definition of a tonne is as follows:
A tonne (also called metric ton) is a non-SI unit of mass, accepted for use with SI, defined as: 1 tonne = 1000 kg (= 106 g).
Carat (mass) is a unit of mass for gems. It is equal to 0.2 gram. In the United States, carat almost exclusively means the unit of mass.
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!