| carat | 1 ct | 2 ct | 3 ct | 4 ct | 5 ct | 6 ct | 7 ct | 8 ct | 9 ct | 10 ct | 11 ct | 12 ct | 13 ct | 14 ct | 15 ct | 16 ct | 17 ct | 18 ct | 19 ct | 20 ct | 21 ct | 22 ct | 23 ct | 24 ct | 25 ct | 26 ct | 27 ct | 28 ct | 29 ct | 30 ct | 31 ct | 32 ct | 33 ct | 34 ct | 35 ct | 36 ct | 37 ct | 38 ct | 39 ct | 40 ct | 41 ct | 42 ct | 43 ct | 44 ct | 45 ct | 46 ct | 47 ct | 48 ct | 49 ct | 50 ct | 51 ct | 52 ct | 53 ct | 54 ct | 55 ct | 56 ct | 57 ct | 58 ct | 59 ct | 60 ct | 61 ct | 62 ct | 63 ct | 64 ct | 65 ct | 66 ct | 67 ct | 68 ct | 69 ct | 70 ct | 71 ct | 72 ct | 73 ct | 74 ct | 75 ct | 76 ct | 77 ct | 78 ct | 79 ct | 80 ct | 81 ct | 82 ct | 83 ct | 84 ct | 85 ct | 86 ct | 87 ct | 88 ct | 89 ct | 90 ct | 91 ct | 92 ct | 93 ct | 94 ct | 95 ct | 96 ct | 97 ct | 98 ct | 99 ct | 100 ct |
| troy ounce | 0.0064301 oz t | 0.0128603 oz t | 0.0192904 oz t | 0.0257206 oz t | 0.0321507 oz t | 0.0385809 oz t | 0.0450110 oz t | 0.0514412 oz t | 0.0578713 oz t | 0.0643015 oz t | 0.0707316 oz t | 0.0771618 oz t | 0.0835919 oz t | 0.0900221 oz t | 0.0964522 oz t | 0.1028824 oz t | 0.1093125 oz t | 0.1157427 oz t | 0.1221728 oz t | 0.1286030 oz t | 0.1350331 oz t | 0.1414633 oz t | 0.1478934 oz t | 0.1543236 oz t | 0.1607537 oz t | 0.1671839 oz t | 0.1736140 oz t | 0.1800442 oz t | 0.1864743 oz t | 0.1929045 oz t | 0.1993346 oz t | 0.2057648 oz t | 0.2121949 oz t | 0.2186251 oz t | 0.2250552 oz t | 0.2314854 oz t | 0.2379155 oz t | 0.2443457 oz t | 0.2507758 oz t | 0.2572060 oz t | 0.2636361 oz t | 0.2700663 oz t | 0.2764964 oz t | 0.2829266 oz t | 0.2893567 oz t | 0.2957869 oz t | 0.3022170 oz t | 0.3086472 oz t | 0.3150773 oz t | 0.3215075 oz t | 0.3279376 oz t | 0.3343678 oz t | 0.3407979 oz t | 0.3472281 oz t | 0.3536582 oz t | 0.3600884 oz t | 0.3665185 oz t | 0.3729487 oz t | 0.3793788 oz t | 0.3858090 oz t | 0.3922391 oz t | 0.3986693 oz t | 0.4050994 oz t | 0.4115296 oz t | 0.4179597 oz t | 0.4243899 oz t | 0.4308200 oz t | 0.4372502 oz t | 0.4436803 oz t | 0.4501105 oz t | 0.4565406 oz t | 0.4629708 oz t | 0.4694009 oz t | 0.4758310 oz t | 0.4822612 oz t | 0.4886913 oz t | 0.4951215 oz t | 0.5015516 oz t | 0.5079818 oz t | 0.5144119 oz t | 0.5208421 oz t | 0.5272722 oz t | 0.5337024 oz t | 0.5401325 oz t | 0.5465627 oz t | 0.5529928 oz t | 0.5594230 oz t | 0.5658531 oz t | 0.5722833 oz t | 0.5787134 oz t | 0.5851436 oz t | 0.5915737 oz t | 0.5980039 oz t | 0.6044340 oz t | 0.6108642 oz t | 0.6172943 oz t | 0.6237245 oz t | 0.6301546 oz t | 0.6365848 oz t | 0.6430149 oz t |
The carat (ct) is a unit of mass equal to 200 mg (0.2 g; 0.007055 oz) and is used for measuring gemstones and pearls.
| 1 carats = 0.0064301493137256 troy ounces | 11 carats = 0.070731642450982 troy ounces |
| 2.5 carats = 0.016075373284314 troy ounces | 12.5 carats = 0.08037686642157 troy ounces |
| 4 carats = 0.025720597254902 troy ounces | 14 carats = 0.090022090392158 troy ounces |
| 5.5 carats = 0.035365821225491 troy ounces | 15.5 carats = 0.099667314362747 troy ounces |
| 7 carats = 0.045011045196079 troy ounces | 17 carats = 0.10931253833334 troy ounces |
| 8.5 carats = 0.054656269166668 troy ounces | 18.5 carats = 0.11895776230392 troy ounces |
| 10 carats = 0.064301493137256 troy ounces | 20 carats = 0.12860298627451 troy ounces |
One troy ounce (oz t) is equal to 31.103 476 8 grams. Also equal to 1.097 142 86 avoirdupois ounces, exactly 192⁄175, or about 10% larger.
| 1 troy ounces = 155.517384 carats | 11 troy ounces = 1710.691224 carats |
| 2.5 troy ounces = 388.79346 carats | 12.5 troy ounces = 1943.9673 carats |
| 4 troy ounces = 622.069536 carats | 14 troy ounces = 2177.243376 carats |
| 5.5 troy ounces = 855.345612 carats | 15.5 troy ounces = 2410.519452 carats |
| 7 troy ounces = 1088.621688 carats | 17 troy ounces = 2643.795528 carats |
| 8.5 troy ounces = 1321.897764 carats | 18.5 troy ounces = 2877.071604 carats |
| 10 troy ounces = 1555.17384 carats | 20 troy ounces = 3110.34768 carats |
| 1 carats = 0.0064301 troy ounces |
| 1 troy ounces = 155.517384 carats |