Carats to Ounces Converter
Convert carats (ct) to ounces (avoirdupois) (oz), 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 = 0.00705479238992 oz
- 1 × 0.00705479238992 = 0.00705479238992 oz
How to convert carats to ounces
1 ct = 0.00705479238992 oz, so multiply by 0.00705479238992 to go from carats to ounces (avoirdupois). Going the other way, 1 oz = 141.747615625 ct.
oz = ct × 0.00705479238992 ct = oz × 141.747615625
Worked example:
1 ct = 0.00705479238992 oz 5 × 0.00705479238992 = 0.0352739619496 oz
Carats to ounces table
| Carats | Ounces |
|---|---|
| 1 ct | 0.00705479238992 oz |
| 2 ct | 0.0141095847798 oz |
| 3 ct | 0.0211643771697 oz |
| 4 ct | 0.0282191695597 oz |
| 5 ct | 0.0352739619496 oz |
| 6 ct | 0.0423287543395 oz |
| 7 ct | 0.0493835467294 oz |
| 8 ct | 0.0564383391193 oz |
| 9 ct | 0.0634931315092 oz |
| 10 ct | 0.0705479238992 oz |
| 15 ct | 0.105821885849 oz |
| 20 ct | 0.141095847798 oz |
| 25 ct | 0.176369809748 oz |
| 30 ct | 0.211643771697 oz |
| 40 ct | 0.282191695597 oz |
| 50 ct | 0.352739619496 oz |
| 75 ct | 0.529109429244 oz |
| 100 ct | 0.705479238992 oz |
| 250 ct | 1.76369809748 oz |
| 500 ct | 3.52739619496 oz |
| 1000 ct | 7.05479238992 oz |
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.
- Ounces (oz)
- Ounces (avoirdupois), a US customary unit. Definition: NIST Handbook 44 Appendix C (US customary units; US gallon = 231 in³).