Convert 30 g to ct
30 grams = 150 carats
Sumwise · Checked by Theo Abbott · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How we check it
How to convert grams to carats
- Formula:
carats = grams × 5 - Put in the value: 30 grams.
- Result: 150 carats.
Grams to carats table
| grams | carats |
|---|---|
| 1 g | 5 ct |
| 2 g | 10 ct |
| 5 g | 25 ct |
| 10 g | 50 ct |
| 20 g | 100 ct |
| 30 g | 150 ct |
| 50 g | 250 ct |
| 100 g | 500 ct |
| 500 g | 2,500 ct |
| 1,000 g | 5,000 ct |
Converting the other way: carats to grams
grams = carats × 0.2. So 150 carats is back to 30 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: 30 × 5 ≈ 150 ct, against the exact 150 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.
30 grams in other units
The most readable unit for this amount is ounces (1.058219).
How answers are calculated and checked: methodology.
Questions
How many carats are in 30 grams?
150 carats.
What is the formula to convert grams to carats?
carats = grams × 5
How many carats are in one gram?
One gram is 5 carats, so multiply any number of grams by 5.
Is 30 g more than 30 ct?
Yes. 30 grams is 150 carats, which is more than 30 carats.
How do I convert grams to carats in a spreadsheet?
Put the number of grams in A1 and type =A1*5 in the next cell. Fill the formula down to convert a whole column.