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 |
stone | 3.1494608883554 × 10-5 st | 6.2989217767108 × 10-5 st | 9.4483826650662 × 10-5 st | 0.0001260 st | 0.0001575 st | 0.0001890 st | 0.0002205 st | 0.0002520 st | 0.0002835 st | 0.0003149 st | 0.0003464 st | 0.0003779 st | 0.0004094 st | 0.0004409 st | 0.0004724 st | 0.0005039 st | 0.0005354 st | 0.0005669 st | 0.0005984 st | 0.0006299 st | 0.0006614 st | 0.0006929 st | 0.0007244 st | 0.0007559 st | 0.0007874 st | 0.0008189 st | 0.0008504 st | 0.0008818 st | 0.0009133 st | 0.0009448 st | 0.0009763 st | 0.0010078 st | 0.0010393 st | 0.0010708 st | 0.0011023 st | 0.0011338 st | 0.0011653 st | 0.0011968 st | 0.0012283 st | 0.0012598 st | 0.0012913 st | 0.0013228 st | 0.0013543 st | 0.0013858 st | 0.0014173 st | 0.0014488 st | 0.0014802 st | 0.0015117 st | 0.0015432 st | 0.0015747 st | 0.0016062 st | 0.0016377 st | 0.0016692 st | 0.0017007 st | 0.0017322 st | 0.0017637 st | 0.0017952 st | 0.0018267 st | 0.0018582 st | 0.0018897 st | 0.0019212 st | 0.0019527 st | 0.0019842 st | 0.0020157 st | 0.0020471 st | 0.0020786 st | 0.0021101 st | 0.0021416 st | 0.0021731 st | 0.0022046 st | 0.0022361 st | 0.0022676 st | 0.0022991 st | 0.0023306 st | 0.0023621 st | 0.0023936 st | 0.0024251 st | 0.0024566 st | 0.0024881 st | 0.0025196 st | 0.0025511 st | 0.0025826 st | 0.0026141 st | 0.0026455 st | 0.0026770 st | 0.0027085 st | 0.0027400 st | 0.0027715 st | 0.0028030 st | 0.0028345 st | 0.0028660 st | 0.0028975 st | 0.0029290 st | 0.0029605 st | 0.0029920 st | 0.0030235 st | 0.0030550 st | 0.0030865 st | 0.0031180 st | 0.0031495 st |
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 | stones | carats | stones |
---|---|---|---|
1 | = 3.1494608883554E-5 | 11 | = 0.00034644069771909 |
2.5 | = 7.8736522208885E-5 | 12.5 | = 0.00039368261104442 |
4 | = 0.00012597843553422 | 14 | = 0.00044092452436976 |
5.5 | = 0.00017322034885955 | 15.5 | = 0.00048816643769509 |
7 | = 0.00022046226218488 | 17 | = 0.00053540835102042 |
8.5 | = 0.00026770417551021 | 18.5 | = 0.00058265026434575 |
10 | = 0.00031494608883554 | 20 | = 0.00062989217767108 |
The stone or stone weight (abbreviation: st.) is an English and imperial unit of mass now equal to 14 pounds (6.35029318 kg).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
stone | st | ≡ 14 lb av | = 6.35029318 kg | Imperial/US |
stones | carats | stones | carats |
---|---|---|---|
1 | = 31751.4659 | 11 | = 349266.1249 |
2.5 | = 79378.66475 | 12.5 | = 396893.32375 |
4 | = 127005.8636 | 14 | = 444520.5226 |
5.5 | = 174633.06245 | 15.5 | = 492147.72145 |
7 | = 222260.2613 | 17 | = 539774.9203 |
8.5 | = 269887.46015 | 18.5 | = 587402.11915 |
10 | = 317514.659 | 20 | = 635029.318 |
carats | stones |
---|---|
1 | = 3.1494608883554 × 10-5 |
31,751.4659 | = 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 …) |