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 |
pennyweight | 0.1286030 pwt | 0.2572060 pwt | 0.3858090 pwt | 0.5144119 pwt | 0.6430149 pwt | 0.7716179 pwt | 0.9002209 pwt | 1.0288239 pwt | 1.1574269 pwt | 1.2860299 pwt | 1.4146328 pwt | 1.5432358 pwt | 1.6718388 pwt | 1.8004418 pwt | 1.9290448 pwt | 2.0576478 pwt | 2.1862508 pwt | 2.3148538 pwt | 2.4434567 pwt | 2.5720597 pwt | 2.7006627 pwt | 2.8292657 pwt | 2.9578687 pwt | 3.0864717 pwt | 3.2150747 pwt | 3.3436776 pwt | 3.4722806 pwt | 3.6008836 pwt | 3.7294866 pwt | 3.8580896 pwt | 3.9866926 pwt | 4.1152956 pwt | 4.2438985 pwt | 4.3725015 pwt | 4.5011045 pwt | 4.6297075 pwt | 4.7583105 pwt | 4.8869135 pwt | 5.0155165 pwt | 5.1441195 pwt | 5.2727224 pwt | 5.4013254 pwt | 5.5299284 pwt | 5.6585314 pwt | 5.7871344 pwt | 5.9157374 pwt | 6.0443404 pwt | 6.1729433 pwt | 6.3015463 pwt | 6.4301493 pwt | 6.5587523 pwt | 6.6873553 pwt | 6.8159583 pwt | 6.9445613 pwt | 7.0731642 pwt | 7.2017672 pwt | 7.3303702 pwt | 7.4589732 pwt | 7.5875762 pwt | 7.7161792 pwt | 7.8447822 pwt | 7.9733851 pwt | 8.1019881 pwt | 8.2305911 pwt | 8.3591941 pwt | 8.4877971 pwt | 8.6164001 pwt | 8.7450031 pwt | 8.8736061 pwt | 9.0022090 pwt | 9.1308120 pwt | 9.2594150 pwt | 9.3880180 pwt | 9.5166210 pwt | 9.6452240 pwt | 9.7738270 pwt | 9.9024299 pwt | 10.0310329 pwt | 10.1596359 pwt | 10.2882389 pwt | 10.4168419 pwt | 10.5454449 pwt | 10.6740479 pwt | 10.8026508 pwt | 10.9312538 pwt | 11.0598568 pwt | 11.1884598 pwt | 11.3170628 pwt | 11.4456658 pwt | 11.5742688 pwt | 11.7028718 pwt | 11.8314747 pwt | 11.9600777 pwt | 12.0886807 pwt | 12.2172837 pwt | 12.3458867 pwt | 12.4744897 pwt | 12.6030927 pwt | 12.7316956 pwt | 12.8602986 pwt |
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.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
carat | ct | ≡ 200 mg | ≡ 200 mg | Imperial/US |
carats | pennyweights | carats | pennyweights |
---|---|---|---|
1 | = 0.12860298627451 | 11 | = 1.4146328490196 |
2.5 | = 0.32150746568628 | 12.5 | = 1.6075373284314 |
4 | = 0.51441194509805 | 14 | = 1.8004418078432 |
5.5 | = 0.70731642450982 | 15.5 | = 1.9933462872549 |
7 | = 0.90022090392158 | 17 | = 2.1862507666667 |
8.5 | = 1.0931253833334 | 18.5 | = 2.3791552460785 |
10 | = 1.2860298627451 | 20 | = 2.5720597254902 |
A pennyweight (abbreviated dwt or denarius weight) is a unit of mass that is equal to 24 grains, 1⁄20 of a troy ounce, 1⁄240 of a troy pound, approximately 0.054857 avoirdupois ounce and exactly 1.55517384 grams.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
pennyweight | pwt | ≡ 1⁄20 oz t | = 1.55517384 g | Imperial/US |
pennyweights | carats | pennyweights | carats |
---|---|---|---|
1 | = 7.7758692 | 11 | = 85.5345612 |
2.5 | = 19.439673 | 12.5 | = 97.198365 |
4 | = 31.1034768 | 14 | = 108.8621688 |
5.5 | = 42.7672806 | 15.5 | = 120.5259726 |
7 | = 54.4310844 | 17 | = 132.1897764 |
8.5 | = 66.0948882 | 18.5 | = 143.8535802 |
10 | = 77.758692 | 20 | = 155.517384 |
carats | pennyweights |
---|---|
1 | = 0.1286030 |
7.7758692 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |