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 pound | 0.0005358 lb t | 0.0010717 lb t | 0.0016075 lb t | 0.0021434 lb t | 0.0026792 lb t | 0.0032151 lb t | 0.0037509 lb t | 0.0042868 lb t | 0.0048226 lb t | 0.0053585 lb t | 0.0058943 lb t | 0.0064301 lb t | 0.0069660 lb t | 0.0075018 lb t | 0.0080377 lb t | 0.0085735 lb t | 0.0091094 lb t | 0.0096452 lb t | 0.0101811 lb t | 0.0107169 lb t | 0.0112528 lb t | 0.0117886 lb t | 0.0123245 lb t | 0.0128603 lb t | 0.0133961 lb t | 0.0139320 lb t | 0.0144678 lb t | 0.0150037 lb t | 0.0155395 lb t | 0.0160754 lb t | 0.0166112 lb t | 0.0171471 lb t | 0.0176829 lb t | 0.0182188 lb t | 0.0187546 lb t | 0.0192904 lb t | 0.0198263 lb t | 0.0203621 lb t | 0.0208980 lb t | 0.0214338 lb t | 0.0219697 lb t | 0.0225055 lb t | 0.0230414 lb t | 0.0235772 lb t | 0.0241131 lb t | 0.0246489 lb t | 0.0251848 lb t | 0.0257206 lb t | 0.0262564 lb t | 0.0267923 lb t | 0.0273281 lb t | 0.0278640 lb t | 0.0283998 lb t | 0.0289357 lb t | 0.0294715 lb t | 0.0300074 lb t | 0.0305432 lb t | 0.0310791 lb t | 0.0316149 lb t | 0.0321507 lb t | 0.0326866 lb t | 0.0332224 lb t | 0.0337583 lb t | 0.0342941 lb t | 0.0348300 lb t | 0.0353658 lb t | 0.0359017 lb t | 0.0364375 lb t | 0.0369734 lb t | 0.0375092 lb t | 0.0380451 lb t | 0.0385809 lb t | 0.0391167 lb t | 0.0396526 lb t | 0.0401884 lb t | 0.0407243 lb t | 0.0412601 lb t | 0.0417960 lb t | 0.0423318 lb t | 0.0428677 lb t | 0.0434035 lb t | 0.0439394 lb t | 0.0444752 lb t | 0.0450110 lb t | 0.0455469 lb t | 0.0460827 lb t | 0.0466186 lb t | 0.0471544 lb t | 0.0476903 lb t | 0.0482261 lb t | 0.0487620 lb t | 0.0492978 lb t | 0.0498337 lb t | 0.0503695 lb t | 0.0509053 lb t | 0.0514412 lb t | 0.0519770 lb t | 0.0525129 lb t | 0.0530487 lb t | 0.0535846 lb 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.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
carat | ct | ≡ 200 mg | ≡ 200 mg | Imperial/US |
carats | troy pounds | carats | troy pounds |
---|---|---|---|
1 | = 0.0005358457761438 | 11 | = 0.0058943035375818 |
2.5 | = 0.0013396144403595 | 12.5 | = 0.0066980722017975 |
4 | = 0.0021433831045752 | 14 | = 0.0075018408660132 |
5.5 | = 0.0029471517687909 | 15.5 | = 0.0083056095302289 |
7 | = 0.0037509204330066 | 17 | = 0.0091093781944446 |
8.5 | = 0.0045546890972223 | 18.5 | = 0.0099131468586603 |
10 | = 0.005358457761438 | 20 | = 0.010716915522876 |
The troy pound is 5 760 grains (≈ 373.24 g, 12 oz t), while an avoirdupois pound is approximately 21.53% heavier at 7 000 grains (≈ 453.59 g).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
troy pound | lb t | ≡ 5760 grains | = 0.3732417216 kg | Imperial/US |
troy pounds | carats | troy pounds | carats |
---|---|---|---|
1 | = 1866.208608 | 11 | = 20528.294688 |
2.5 | = 4665.52152 | 12.5 | = 23327.6076 |
4 | = 7464.834432 | 14 | = 26126.920512 |
5.5 | = 10264.147344 | 15.5 | = 28926.233424 |
7 | = 13063.460256 | 17 | = 31725.546336 |
8.5 | = 15862.773168 | 18.5 | = 34524.859248 |
10 | = 18662.08608 | 20 | = 37324.17216 |
carats | troy pounds |
---|---|
1 | = 0.0005358 |
1,866.208608 | = 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 …) |