Grams to Carats

Convert grams (g) to carats (ct) instantly — with formula and reference table.

g
ct

Quick answer: 1 g = 5 ct. To convert grams to carats, multiply by g × 5.

Converting grams to carats

This converter changes a value in grams (g) into carats (ct). One gram equals 5 ct. One gram equals 5 metric carats. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.

Formula

ct = g × 5

Example

Convert 10 g to ct: 10 × 5 = 50 ct.

Grams to Carats conversion table

Grams (g)Carats (ct)
1 g5 ct
2 g10 ct
3 g15 ct
5 g25 ct
10 g50 ct
20 g100 ct
25 g125 ct
50 g250 ct
100 g500 ct

How to use this converter

  1. Enter a value in the grams (g) field.
  2. Read the converted value in carats (ct) below.
  3. Type into the ct field instead to convert in reverse, or use the swap button.

Frequently asked questions

How many carats are in a gram?

1 gram equals 5 carats.

How do I convert 2 grams to carats?

2 times 5 = 10 carats.

How heavy is a 1-carat diamond?

A 1-carat diamond weighs 0.2 grams (200 milligrams).

Last updated: 2026-05-27 Free · No signup · Works offline Suggest an improvement