Convert carats to tonnes
1 ct = 0.0000002 t — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.000 000 2t
Exact decimal: 0.0000002
As a fraction: 1/5000000
1 ct = 0.0000002 t
How to convert carats to tonnes
Multiply the number of carats by 0.0000002 to get tonnes.
The exact factor is 0.0000002 — as a fraction, 1/5000000.
Carat: The metric carat: exactly 200 mg.
Carat to Tonne conversion table
| Carats (ct) | Tonnes (t) |
|---|---|
| 1 ct | 0.000 000 2 |
| 2 ct | 0.000 000 4 |
| 3 ct | 0.000 000 6 |
| 5 ct | 0.000 001 |
| 10 ct | 0.000 002 |
| 20 ct | 0.000 004 |
| 25 ct | 0.000 005 |
| 50 ct | 0.000 01 |
| 100 ct | 0.000 02 |
| 250 ct | 0.000 05 |
| 500 ct | 0.0001 |
| 1000 ct | 0.0002 |
Tonne to Carat conversion table
| Tonnes (t) | Carats (ct) |
|---|---|
| 1 t | 5 000 000 |
| 2 t | 10 000 000 |
| 3 t | 15 000 000 |
| 5 t | 25 000 000 |
| 10 t | 50 000 000 |
| 20 t | 100 000 000 |
| 25 t | 125 000 000 |
| 50 t | 250 000 000 |
| 100 t | 500 000 000 |
| 250 t | 1 250 000 000 |
| 500 t | 2 500 000 000 |
| 1000 t | 5 000 000 000 |
Frequently asked
How many tonnes are in a carat?
One carat equals 0.0000002 tonnes (ct → t). That figure is exact, not rounded.
How do you convert carats to tonnes?
Multiply the number of carats by 0.0000002 to get tonnes.
What is 1 t in carats?
One tonne is 5000000 carats.
What is 10 ct in t?
10 ct = 0.000 002 t.
What exactly is a carat?
The metric carat: exactly 200 mg.