How do you convert carats to grams?
To convert carats to grams, divide the number of carats by 5. 1 ct = 0.2 g.
Gram = Carat ÷ 5
Carats for gemstones, grams for gold
1 metric carat is exactly 0.2 grams (200 milligrams). Multiply carats by 0.2 to get grams: a 1.5 ct stone weighs 0.3 g.
The karat (K) used for gold is a purity scale, not a weight. 22K gold (916) contains 91.6% gold whatever it weighs.
Related tools
Carats to grams conversion table
| Carats (ct) | Grams (g) |
|---|---|
| 0.5 ct | 0.1 g |
| 1 ct | 0.2 g |
| 2 ct | 0.4 g |
| 5 ct | 1 g |
| 10 ct | 2 g |
| 50 ct | 10 g |
| 100 ct | 20 g |
What is Carat?
Carat is a unit used in mass conversions and practical measurement work.
Short history of Carat
The carat takes its name from the carob seed once used to weigh gems. The metric carat of exactly 200 mg was adopted internationally in 1907.
Open the Carat unit guideWhat is Gram?
The gram is a unit of mass equal to one thousandth of a kilogram. It is widely used for food, laboratory materials and small quantities.
Short history of Gram
The gram became established as a smaller metric mass unit during the development of the decimal measurement system.
Open the Gram unit guideFrequently asked questions
What is 1 Carat in Gram?
1 ct = 0.2 g.
How do you convert Carat to Gram?
To convert carats to grams, divide the number of carats by 5. 1 ct = 0.2 g.
Frequently asked questions
How many grams are in 1 carat?
1 ct = 0.2 g.
How do you convert carats to grams?
To convert carats to grams, divide the number of carats by 5. 1 ct = 0.2 g.
How many carats are in 1 gram?
1 g = 5 ct.