Convert Carats to Kilograms

Enter the weight in carats below to get the value converted to kilograms.

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Results in Kilograms:
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1 ct = 0.0002 kg
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How to Convert Carats to Kilograms

Scales are used to measure weight

To convert a carat measurement to a kilogram measurement, divide the weight by the conversion ratio. One kilogram is equal to 5,000 carats, so use this simple formula to convert:

kilograms = carats ÷ 5,000

The weight in kilograms is equal to the carats divided by 5,000.

For example, here's how to convert 5,000 carats to kilograms using the formula above.
5,000 ct = (5,000 ÷ 5,000) = 1 kg

Carats and kilograms are both units used to measure weight. Keep reading to learn more about each unit of measure.

Carats

The carat is a unit of mass/weight equal to 200 milligrams.[1]

A carat is sometimes also referred to as a metric carat. Carats can be abbreviated as ct, and are also sometimes abbreviated as CD. For example, 1 carat can be written as 1 ct or 1 CD.

Kilograms

The definition of the kilogram changed in 2019. Previously, one kilogram was equal to the mass of the platinum-iridium bar, known as the International Prototype of the Kilogram, which was stored in Sèvres, France.

The 2019 SI brochure now defines the kilogram using the Planck constant, and it is defined using the meter and second.[2] It is roughly equal to the mass of 1,000 cubic centimeters of water.

The kilogram, or kilogramme, is the SI base unit for weight, and is also a multiple of the gram. In the metric system, "kilo" is the prefix for 103. Kilograms can be abbreviated as kg, for example 1 kilogram can be written as 1 kg.

Carat to Kilogram Conversion Table

Carat measurements converted to kilograms
Carats Kilograms
1 ct 0.0002 kg
2 ct 0.0004 kg
3 ct 0.0006 kg
4 ct 0.0008 kg
5 ct 0.001 kg
6 ct 0.0012 kg
7 ct 0.0014 kg
8 ct 0.0016 kg
9 ct 0.0018 kg
10 ct 0.002 kg
20 ct 0.004 kg
30 ct 0.006 kg
40 ct 0.008 kg
50 ct 0.01 kg
60 ct 0.012 kg
70 ct 0.014 kg
80 ct 0.016 kg
90 ct 0.018 kg
100 ct 0.02 kg
200 ct 0.04 kg
300 ct 0.06 kg
400 ct 0.08 kg
500 ct 0.1 kg
600 ct 0.12 kg
700 ct 0.14 kg
800 ct 0.16 kg
900 ct 0.18 kg
1,000 ct 0.2 kg
2,000 ct 0.4 kg
3,000 ct 0.6 kg
4,000 ct 0.8 kg
5,000 ct 1 kg
6,000 ct 1.2 kg
7,000 ct 1.4 kg
8,000 ct 1.6 kg
9,000 ct 1.8 kg
10,000 ct 2 kg

References

  1. National Institute of Standards and Technology, Precious Metals Conversion Information, https://www.nist.gov/pml/weights-and-measures/laws-and-regulations/precious-metals-conversion
  2. International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9.pdf