Carats to kilograms

kilograms = carats × 0.0002

How to convert carats to kilograms

One carat is 0.0002 kilograms, so multiply the number of carats by 0.0002. For example, 20 carats is 20 × 0.0002 = 0.004 kilograms. To go back, divide by the same number, or multiply by 5,000.

Quick estimate

Multiplying by about 0.0002 gets within 0.0% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

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

carats	kilograms
1 ct	0.0002 kg
2 ct	0.0004 kg
3 ct	0.0006 kg
4 ct	0.0008 kg
5 ct	0.001 kg
6 ct	0.0012 kg
7 ct	0.0014 kg
8 ct	0.0016 kg
9 ct	0.0018 kg
10 ct	0.002 kg
11 ct	0.0022 kg
12 ct	0.0024 kg
13 ct	0.0026 kg
14 ct	0.0028 kg
15 ct	0.003 kg
16 ct	0.0032 kg
17 ct	0.0034 kg
18 ct	0.0036 kg
19 ct	0.0038 kg
20 ct	0.004 kg
25 ct	0.005 kg
30 ct	0.006 kg
40 ct	0.008 kg
50 ct	0.01 kg
60 ct	0.012 kg
70 ct	0.014 kg
75 ct	0.015 kg
80 ct	0.016 kg
90 ct	0.018 kg
100 ct	0.02 kg
120 ct	0.024 kg
150 ct	0.03 kg
200 ct	0.04 kg
250 ct	0.05 kg
300 ct	0.06 kg
400 ct	0.08 kg
500 ct	0.1 kg
750 ct	0.15 kg
1,000 ct	0.2 kg
1,500 ct	0.3 kg
2,000 ct	0.4 kg
5,000 ct	1 kg
10,000 ct	2 kg

Questions

How many kilograms are in a carat?

0.0002 kilograms.

How do I convert carats to kilograms in a spreadsheet?

Put the value in A1 and type =A1*0.0002, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.