Ounces to Carats (oz → ct)
Formula
1 oz = 141.747615625 ctConversion Table
| oz | ct |
|---|---|
| 0 | 0 |
| 1.0000 | 141.75 |
| 2.0000 | 283.50 |
| 3.0000 | 425.24 |
| 4.0000 | 566.99 |
| 5.0000 | 708.74 |
| 6.0000 | 850.49 |
| 7.0000 | 992.23 |
| 8.0000 | 1,134.0 |
| 9.0000 | 1,275.7 |
| 10.000 | 1,417.5 |
| 11.000 | 1,559.2 |
| 12.000 | 1,701.0 |
| 13.000 | 1,842.7 |
| 14.000 | 1,984.5 |
| 15.000 | 2,126.2 |
| 16.000 | 2,268.0 |
| 17.000 | 2,409.7 |
| 18.000 | 2,551.5 |
| 19.000 | 2,693.2 |
| oz | ct |
|---|---|
| 20.000 | 2,835.0 |
| 21.000 | 2,976.7 |
| 22.000 | 3,118.4 |
| 23.000 | 3,260.2 |
| 24.000 | 3,401.9 |
| 25.000 | 3,543.7 |
| 26.000 | 3,685.4 |
| 27.000 | 3,827.2 |
| 28.000 | 3,968.9 |
| 29.000 | 4,110.7 |
| 30.000 | 4,252.4 |
| 31.000 | 4,394.2 |
| 32.000 | 4,535.9 |
| 33.000 | 4,677.7 |
| 34.000 | 4,819.4 |
| 35.000 | 4,961.2 |
| 36.000 | 5,102.9 |
| 37.000 | 5,244.7 |
| 38.000 | 5,386.4 |
| 39.000 | 5,528.2 |
| oz | ct |
|---|---|
| 40.000 | 5,669.9 |
| 41.000 | 5,811.7 |
| 42.000 | 5,953.4 |
| 43.000 | 6,095.1 |
| 44.000 | 6,236.9 |
| 45.000 | 6,378.6 |
| 46.000 | 6,520.4 |
| 47.000 | 6,662.1 |
| 48.000 | 6,803.9 |
| 49.000 | 6,945.6 |
| 50.000 | 7,087.4 |
| 51.000 | 7,229.1 |
| 52.000 | 7,370.9 |
| 53.000 | 7,512.6 |
| 54.000 | 7,654.4 |
| 55.000 | 7,796.1 |
| 56.000 | 7,937.9 |
| 57.000 | 8,079.6 |
| 58.000 | 8,221.4 |
| 59.000 | 8,363.1 |
| oz | ct |
|---|---|
| 60.000 | 8,504.9 |
| 61.000 | 8,646.6 |
| 62.000 | 8,788.4 |
| 63.000 | 8,930.1 |
| 64.000 | 9,071.8 |
| 65.000 | 9,213.6 |
| 66.000 | 9,355.3 |
| 67.000 | 9,497.1 |
| 68.000 | 9,638.8 |
| 69.000 | 9,780.6 |
| 70.000 | 9,922.3 |
| 71.000 | 10,064 |
| 72.000 | 10,206 |
| 73.000 | 10,348 |
| 74.000 | 10,489 |
| 75.000 | 10,631 |
| 76.000 | 10,773 |
| 77.000 | 10,915 |
| 78.000 | 11,056 |
| 79.000 | 11,198 |
Ounces to Carats Conversion
Converting Ounces (oz) to Carats (ct) is a common weight conversion. 1 oz equals 141.747616 ct. For example, 100 oz is equal to 14,174.761563 ct.
Quick Mental Math: Ounces to Carats
Multiply by approximately 140 to convert ounces to carats.
Why is converting Ounces to Carats tricky?
The factor obscures the relationship between units.
Quick Reference Values
1 oz = 141.747616 ct. 5 oz = 708.738078 ct. 10 oz = 1,417.476156 ct. 25 oz = 3,543.690391 ct. 50 oz = 7,087.380781 ct. 100 oz = 14,174.761563 ct.
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].
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].
Common Misspellings
People often search for this conversion using these alternate spellings: ounce, ounze, onze, ounch, ounz, carat, karat, carrots, carret. All of these refer to the Ounces to Carats conversion.