Convert Ounce to Carat
Use this free converter to change ounces (oz) into carats (ct). Ounce and carat both measure weight & mass. As a quick reference, 1 oz equals 141.74762 ct, and 1 ct equals 0.0070547924 oz.
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Carat (ct)
141.74762
1 oz = 141.74762 ct
Weight & Mass conversion table
| Ounce | Carat |
|---|---|
| 0.01 | 1.4174762 |
| 0.1 | 14.174762 |
| 0.5 | 70.873808 |
| 1 | 141.74762 |
| 2 | 283.49523 |
| 3 | 425.24285 |
| 5 | 708.73808 |
| 10 | 1417.4762 |
| 20 | 2834.9523 |
| 25 | 3543.6904 |
| 50 | 7087.3808 |
| 100 | 14174.762 |
| 1,000 | 141747.62 |
How to convert Ounce to Carat
Multiply the ounce value by 141.74762 to get carats.
- Enter the number of ounces you want to convert.
- The converter instantly shows the equivalent value in carats.
- Worked example: 15 oz × 141.74762 = 2126.2142 ct.
- Use the swap button to reverse the conversion (carat to ounce).
About these units
Ounce (oz)
- Definition
- An ounce (oz) is an imperial unit of mass equal to one sixteenth of a pound, about 28.35 grams.
- History
- It also descends from the Roman "uncia" (a twelfth) and was later fixed at 1/16 of the avoirdupois pound.
- Current use
- Ounces measure food portions, postal weights, and ingredients in the US and UK.
Carat (ct)
- Definition
- A carat (ct) is a unit of mass for gemstones equal to exactly 200 milligrams.
- History
- It takes its name from the carob seed, once used as a counterweight, and was standardised at 0.2 g in 1907.
- Current use
- Carats express the weight of diamonds and other precious stones in the jewellery trade.
Frequently asked questions
How many carats are in a ounce?
There are 141.74762 ct in 1 oz. To convert, multiply the number of ounces by 141.74762.
How do I convert ounces to carats?
Multiply the ounce value by 141.74762 to get carats. For example, 10 oz = 1417.4762 ct.
Is this ounce-to-carat converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Ounce to other weight & mass units
| Unit | 1 Ounce equals |
|---|---|
| Kilogram (kg) | 0.028349523 kg |
| Gram (g) | 28.349523 g |
| Milligram (mg) | 28349.523 mg |
| Microgram (µg) | 28349523 µg |
| Metric Ton (t) | 0.000028349523 t |
| Pound (lb) | 0.0625 lb |
| Stone (st) | 0.0044642857 st |
| US Ton (ton) | 0.00003125 ton |
| Imperial Ton (long ton) | 0.000027901786 long ton |
| Carat (ct) | 141.74762 ct |