Carats to metric tons

metric tons = carats × 2e-7

How to convert carats to metric tons

One carat is 2e-7 metric tons, so multiply the number of carats by 2e-7. For example, 20 carats is 20 × 2e-7 = 0.000004 metric tons. To go back, divide by the same number, or multiply by 5,000,000.

Quick estimate

Multiplying by about 2e-7 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	metric tons
1 ct	2e-7 t
2 ct	4e-7 t
3 ct	6e-7 t
4 ct	8e-7 t
5 ct	0.000001 t
6 ct	0.0000012 t
7 ct	0.0000014 t
8 ct	0.0000016 t
9 ct	0.0000018 t
10 ct	0.000002 t
11 ct	0.0000022 t
12 ct	0.0000024 t
13 ct	0.0000026 t
14 ct	0.0000028 t
15 ct	0.000003 t
16 ct	0.0000032 t
17 ct	0.0000034 t
18 ct	0.0000036 t
19 ct	0.0000038 t
20 ct	0.000004 t
25 ct	0.000005 t
30 ct	0.000006 t
40 ct	0.000008 t
50 ct	0.00001 t
60 ct	0.000012 t
70 ct	0.000014 t
75 ct	0.000015 t
80 ct	0.000016 t
90 ct	0.000018 t
100 ct	0.00002 t
120 ct	0.000024 t
150 ct	0.00003 t
200 ct	0.00004 t
250 ct	0.00005 t
300 ct	0.00006 t
400 ct	0.00008 t
500 ct	0.0001 t
750 ct	0.00015 t
1,000 ct	0.0002 t
1,500 ct	0.0003 t
2,000 ct	0.0004 t
5,000 ct	0.001 t
10,000 ct	0.002 t

Questions

How many metric tons are in a carat?

2e-7 metric tons.

How do I convert carats to metric tons in a spreadsheet?

Put the value in A1 and type =A1*2e-7, 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.