Carats to Ounces (ct → oz)
Formula
1 ct = 0.007054792389916083 ozConversion Table
| ct | oz |
|---|---|
| 0 | 0 |
| 1.0000 | 0.0070548 |
| 2.0000 | 0.014110 |
| 3.0000 | 0.021164 |
| 4.0000 | 0.028219 |
| 5.0000 | 0.035274 |
| 6.0000 | 0.042329 |
| 7.0000 | 0.049384 |
| 8.0000 | 0.056438 |
| 9.0000 | 0.063493 |
| 10.000 | 0.070548 |
| 11.000 | 0.077603 |
| 12.000 | 0.084658 |
| 13.000 | 0.091712 |
| 14.000 | 0.098767 |
| 15.000 | 0.10582 |
| 16.000 | 0.11288 |
| 17.000 | 0.11993 |
| 18.000 | 0.12699 |
| 19.000 | 0.13404 |
| ct | oz |
|---|---|
| 20.000 | 0.14110 |
| 21.000 | 0.14815 |
| 22.000 | 0.15521 |
| 23.000 | 0.16226 |
| 24.000 | 0.16932 |
| 25.000 | 0.17637 |
| 26.000 | 0.18342 |
| 27.000 | 0.19048 |
| 28.000 | 0.19753 |
| 29.000 | 0.20459 |
| 30.000 | 0.21164 |
| 31.000 | 0.21870 |
| 32.000 | 0.22575 |
| 33.000 | 0.23281 |
| 34.000 | 0.23986 |
| 35.000 | 0.24692 |
| 36.000 | 0.25397 |
| 37.000 | 0.26103 |
| 38.000 | 0.26808 |
| 39.000 | 0.27514 |
| ct | oz |
|---|---|
| 40.000 | 0.28219 |
| 41.000 | 0.28925 |
| 42.000 | 0.29630 |
| 43.000 | 0.30336 |
| 44.000 | 0.31041 |
| 45.000 | 0.31747 |
| 46.000 | 0.32452 |
| 47.000 | 0.33158 |
| 48.000 | 0.33863 |
| 49.000 | 0.34568 |
| 50.000 | 0.35274 |
| 51.000 | 0.35979 |
| 52.000 | 0.36685 |
| 53.000 | 0.37390 |
| 54.000 | 0.38096 |
| 55.000 | 0.38801 |
| 56.000 | 0.39507 |
| 57.000 | 0.40212 |
| 58.000 | 0.40918 |
| 59.000 | 0.41623 |
| ct | oz |
|---|---|
| 60.000 | 0.42329 |
| 61.000 | 0.43034 |
| 62.000 | 0.43740 |
| 63.000 | 0.44445 |
| 64.000 | 0.45151 |
| 65.000 | 0.45856 |
| 66.000 | 0.46562 |
| 67.000 | 0.47267 |
| 68.000 | 0.47973 |
| 69.000 | 0.48678 |
| 70.000 | 0.49384 |
| 71.000 | 0.50089 |
| 72.000 | 0.50795 |
| 73.000 | 0.51500 |
| 74.000 | 0.52205 |
| 75.000 | 0.52911 |
| 76.000 | 0.53616 |
| 77.000 | 0.54322 |
| 78.000 | 0.55027 |
| 79.000 | 0.55733 |
Carats to Ounces Conversion
Converting Carats (ct) to Ounces (oz) is a common weight conversion. 1 ct equals 0.007055 oz. For example, 100 ct is equal to 0.705479 oz.
Quick Mental Math: Carats to Ounces
Divide by approximately 140 to convert carats to ounces.
Why is converting Carats to Ounces tricky?
The factor obscures the relationship between units.
Quick Reference Values
1 ct = 0.007055 oz. 5 ct = 0.035274 oz. 10 ct = 0.070548 oz. 25 ct = 0.17637 oz. 50 ct = 0.35274 oz. 100 ct = 0.705479 oz.
What is Carats?
Carats (ct) is a unit of weight. A carat is a unit of mass equal to 200 milligrams (0.2 grams), used primarily for gemstones and pearls. It is internationally recognized and standardized by the International Bureau of Weights and Measures (BIPM) for trade and gemology. One carat equals exactly 0.2 grams according to ISO standards [bipm-si-brochure]. The carat originated from the carob seed, historically used as a reference mass. It was standardized in 1907 by the International Committee of Weights and Measures at 200 mg to ensure uniformity in gemstone trade and valuation [bipm-si-brochure]. Carats are globally used in the jewelry industry to weigh diamonds, sapphires, and other gemstones. Countries including the US, UK, Canada, and most of Europe rely on the carat for gemstone mass measurement, aligned with ISO and BIPM standards [bipm-si-brochure].
What is Ounces?
Ounces (oz) is a unit of weight. An ounce (oz) is a unit of mass primarily used in the United States and UK customary systems. One avoirdupois ounce equals exactly 28.349523125 grams as defined by NIST. This measure is commonly employed in food labeling, postal services, and retail [nist-sp-811]. The ounce originated from the Roman 'uncia,' a twelfth part of the Roman pound. The avoirdupois ounce was standardized in the 19th century by the international yard and pound agreement of 1959 to unify US and British definitions [nist-sp-811]. Ounces are widely used in the US for weight measurement in grocery, postal, and manufacturing sectors. The UK uses ounces in certain contexts like precious metals and food portions. Most other countries prefer grams and kilograms per SI [nist-sp-811].
Common Misspellings
People often search for this conversion using these alternate spellings: carat, karat, carrots, carret, ounce, ounze, onze, ounch, ounz. All of these refer to the Carats to Ounces conversion.