Convert 3 g to ct

How to convert grams to carats

1. Formula: carats = grams × 5
2. Put in the value: 3 grams.
3. Result: 15 carats.

Grams to carats table

Converting the other way: carats to grams

grams = carats × 0.2. So 15 carats is back to 3 grams; one carat is 0.2 grams. See the carats to grams table.

Quick estimate in your head

For a rough answer, multiply by about 5: 3 × 5 ≈ 15 ct, against the exact 15 ct (0.0% out). Good enough to check that a calculated result is sensible.

Common mistakes

The usual slip is using the factor the wrong way round. A gram is bigger than a carat, so the number of carats must come out larger than the number of grams. If your answer goes the other way, divide instead of multiplying.

About the units

Gram (g) and carat (ct) are both units of mass. One gram equals 5 carats, and one carat equals 0.2 grams. Results on this page are rounded for display; the conversion itself uses the exact definitions.

Mass conversions come up in cooking and baking, shipping and luggage limits, body weight, medicine doses and buying food by weight.

3 grams in other units

The most readable unit for this amount is grams (3).

• 3,000 mg
• 0.003 kg
• 0.000003 t
• 0.10582189 oz
• 0.00661387 lb
• 0.00047242 st
• 0.00000331 ton
• 15 ct

How this answer was calculated

The result is worked out from the numbers in this page's address when the page is opened, using exact arithmetic wherever possible and rounding only for display. Nothing is copied from a printed table. If you think an answer is wrong, please tell us through the contact page and we will check it.

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