Centigram to Carat Converter

Mass Converter

26 units available

Decimals:

From

To

0.05

1 cg = 0.05 ct

Formula:

ct = cg × 0.05

With your value: 1 cg = 0.05 ct

How big is that?

Everyday references on a logarithmic scale, all expressed in centigram so you can sanity-check the result.

Your value1.00 cg

Paperclip (1.0e+2× your value)100 cg

AA battery (2.4e+3× your value)2.40e+3 cg

Can of soda (3.9e+4× your value)3.90e+4 cg

Bag of sugar (1.0e+5× your value)1.00e+5 cg

House cat (4.5e+5× your value)4.50e+5 cg

Other Centigram to Carat conversions

2 cg to ct 3 cg to ct 4 cg to ct 5 cg to ct 6 cg to ct 7 cg to ct 8 cg to ct

Centigram to Carat Conversion Table

Centigram (cg)	Carat (ct)
0.5	0.025
1	0.05
2	0.1
5	0.25
10	0.5
15	0.75
20	1
25	1.25
50	2.5
100	5
250	12.5
500	25
1000	50

Carat to Centigram Conversion Table

Carat (ct)	Centigram (cg)
0.5	10
1	20
2	40
5	100
10	200
15	300
20	400
25	500
50	1,000
100	2,000
250	5,000
500	10,000
1000	20,000

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Centigram (cg)

Mass

Exact conversion

Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Carat (ct)

Mass

Conventional value

The metric carat is exactly 200 mg, agreed internationally in 1907.

Source: NIST Handbook 44, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Centigram to Carat

To convert from Centigram (cg) to Carat (ct), multiply the value by 0.05.

Formula: ct = cg × 0.05

Reverse: cg = ct × 20

Step-by-Step Example

Start with your value in Centigram. For example: 5 cg
Multiply by the conversion factor: 5 x 0.05
The result is: 0.25 ct

About Centigram

The centigram (cg) is a unit of mass and weight. One centigram equals 1.000000 × 10^-5 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: mass calculations, engineering and science, education.

About Carat

The carat equals 200 milligrams and is the standard unit for measuring gemstone weight.

Fun Fact: The word "carat" comes from the carob seed, which was used as a balance weight in ancient gem trading.

Common uses: gemstones, diamonds, jewelry.

Frequently Asked Questions

How many Carat are in 1 Centigram?

There are exactly 0.05 Carat in 1 Centigram. This means the conversion factor from Centigram to Carat is 0.05.

What is the formula to convert Centigram to Carat?

The formula to convert Centigram to Carat is: ct = cg × 0.05. For example, to convert 10 Centigram to Carat, you would multiply 10 by 0.05.

What is a Centigram?