Ounces to Carats Converter
Convert ounces (avoirdupois) (oz) to carats (ct), 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 oz = 141.747615625 ct
- 1 × 141.747615625 = 141.747615625 ct
How to convert ounces to carats
1 oz = 141.747615625 ct, so multiply by 141.747615625 to go from ounces (avoirdupois) to carats. Going the other way, 1 ct = 0.00705479238992 oz.
ct = oz × 141.747615625 oz = ct × 0.00705479238992
Worked example:
1 oz = 141.747615625 ct 5 × 141.747615625 = 708.738078125 ct
Ounces to carats table
| Ounces | Carats |
|---|---|
| 1 oz | 141.747615625 ct |
| 2 oz | 283.49523125 ct |
| 3 oz | 425.242846875 ct |
| 4 oz | 566.9904625 ct |
| 5 oz | 708.738078125 ct |
| 6 oz | 850.48569375 ct |
| 7 oz | 992.233309375 ct |
| 8 oz | 1,133.980925 ct |
| 9 oz | 1,275.72854062 ct |
| 10 oz | 1,417.47615625 ct |
| 15 oz | 2,126.21423438 ct |
| 20 oz | 2,834.9523125 ct |
| 25 oz | 3,543.69039062 ct |
| 30 oz | 4,252.42846875 ct |
| 40 oz | 5,669.904625 ct |
| 50 oz | 7,087.38078125 ct |
| 75 oz | 10,631.0711719 ct |
| 100 oz | 14,174.7615625 ct |
| 250 oz | 35,436.9039062 ct |
| 500 oz | 70,873.8078125 ct |
| 1000 oz | 141,747.615625 ct |
About the units
- Ounces (oz)
- Ounces (avoirdupois), a US customary unit. Definition: NIST Handbook 44 Appendix C (US customary units; US gallon = 231 in³).
- Carats (ct)
- Carats, a specialised unit. Metric carat, 200 mg exactly. Definition: NIST Handbook 44 (2024), Appendix C: General Tables of Units of Measurement.