Carats to Metric Tons Converter
Convert carats (ct) to metric tons (tonnes) (t), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter a weight, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 ct = 2e-7 t
- 1 × 2e-7 = 2e-7 t
How to convert carats to metric tons
1 ct = 2 × 10⁻⁷ t, so multiply by 2 to go from carats to metric tons (tonnes). Going the other way, 1 t = 5,000,000 ct.
t = ct × 2 ct = t × 5,000,000
Worked example:
1 ct = 2e-7 t 5 × 2e-7 = 1e-6 t
Carats to metric tons table
| Carats | Metric Tons |
|---|---|
| 1 ct | 2 × 10⁻⁷ t |
| 2 ct | 4 × 10⁻⁷ t |
| 3 ct | 6 × 10⁻⁷ t |
| 4 ct | 8 × 10⁻⁷ t |
| 5 ct | 1 × 10⁻⁶ t |
| 6 ct | 1.2 × 10⁻⁶ t |
| 7 ct | 1.4 × 10⁻⁶ t |
| 8 ct | 1.6 × 10⁻⁶ t |
| 9 ct | 1.8 × 10⁻⁶ t |
| 10 ct | 2 × 10⁻⁶ t |
| 15 ct | 3 × 10⁻⁶ t |
| 20 ct | 4 × 10⁻⁶ t |
| 25 ct | 5 × 10⁻⁶ t |
| 30 ct | 6 × 10⁻⁶ t |
| 40 ct | 8 × 10⁻⁶ t |
| 50 ct | 1 × 10⁻⁵ t |
| 75 ct | 1.5 × 10⁻⁵ t |
| 100 ct | 2 × 10⁻⁵ t |
| 250 ct | 5 × 10⁻⁵ t |
| 500 ct | 0.0001 t |
| 1000 ct | 0.0002 t |
About the units
- Carats (ct)
- Carats, a specialised unit. Metric carat, 200 mg exactly. Definition: NIST Handbook 44 (2024), Appendix C: General Tables of Units of Measurement.
- Metric Tons (t)
- Metric tons (tonnes), a metric unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.