Carats to Tonnes (Metric Tons): the quick answer
1 ct = 2 × 10⁻⁷ t
1 carat equals 2 × 10⁻⁷ tonnes
To convert carats to tonnes, multiply the value by 2 × 10⁻⁷. To go the other way, multiply tonnes by 5,000,000 to get carats.
To convert carats to tonnes, multiply the value by 2 × 10⁻⁷. To go the other way, multiply tonnes by 5,000,000 to get carats.
| Carats (ct) | Tonnes (Metric Tons) (t) |
|---|---|
| 1 ct | 2 × 10⁻⁷ t |
| 5 ct | 1 × 10⁻⁶ t |
| 10 ct | 2 × 10⁻⁶ t |
| 25 ct | 5 × 10⁻⁶ t |
| 50 ct | 1 × 10⁻⁵ t |
| 100 ct | 2 × 10⁻⁵ t |
| 250 ct | 5 × 10⁻⁵ t |
| 500 ct | 0.0001 t |
| 1,000 ct | 0.0002 t |
| 2,500 ct | 0.0005 t |
| 5,000 ct | 0.001 t |
| 10,000 ct | 0.002 t |
| 100,000 ct | 0.02 t |
| 1,000,000 ct | 0.2 t |
Carat (ct). The metric carat is 200 milligrams, the unit for diamonds and gemstones.
Tonne (t). A tonne (metric ton) is 1,000 kilograms, used for vehicles, cargo, steel and crops.
There are 2 × 10⁻⁷ tonnes in one carat.
Multiply the number of carats by 2 × 10⁻⁷. For example, 10 carats equal 2 × 10⁻⁶ tonnes.
One tonne equals 5,000,000 carats.
0.0002 tonnes. Other common values: 100 carats = 2 × 10⁻⁵ tonnes and 10,000 carats = 0.002 tonnes.