microgram | 1 µg | 2 µg | 3 µg | 4 µg | 5 µg | 6 µg | 7 µg | 8 µg | 9 µg | 10 µg | 11 µg | 12 µg | 13 µg | 14 µg | 15 µg | 16 µg | 17 µg | 18 µg | 19 µg | 20 µg | 21 µg | 22 µg | 23 µg | 24 µg | 25 µg | 26 µg | 27 µg | 28 µg | 29 µg | 30 µg | 31 µg | 32 µg | 33 µg | 34 µg | 35 µg | 36 µg | 37 µg | 38 µg | 39 µg | 40 µg | 41 µg | 42 µg | 43 µg | 44 µg | 45 µg | 46 µg | 47 µg | 48 µg | 49 µg | 50 µg | 51 µg | 52 µg | 53 µg | 54 µg | 55 µg | 56 µg | 57 µg | 58 µg | 59 µg | 60 µg | 61 µg | 62 µg | 63 µg | 64 µg | 65 µg | 66 µg | 67 µg | 68 µg | 69 µg | 70 µg | 71 µg | 72 µg | 73 µg | 74 µg | 75 µg | 76 µg | 77 µg | 78 µg | 79 µg | 80 µg | 81 µg | 82 µg | 83 µg | 84 µg | 85 µg | 86 µg | 87 µg | 88 µg | 89 µg | 90 µg | 91 µg | 92 µg | 93 µg | 94 µg | 95 µg | 96 µg | 97 µg | 98 µg | 99 µg | 100 µg |
carat | 5.0 × 10-6 ct | 1.0 × 10-5 ct | 1.5 × 10-5 ct | 2.0 × 10-5 ct | 2.5 × 10-5 ct | 3.0 × 10-5 ct | 3.5 × 10-5 ct | 4.0 × 10-5 ct | 4.5 × 10-5 ct | 5.0 × 10-5 ct | 5.5 × 10-5 ct | 6.0 × 10-5 ct | 6.5 × 10-5 ct | 7.0 × 10-5 ct | 7.5 × 10-5 ct | 8.0 × 10-5 ct | 8.5 × 10-5 ct | 9.0 × 10-5 ct | 9.5 × 10-5 ct | 0.0001 ct | 0.000105 ct | 0.00011 ct | 0.000115 ct | 0.00012 ct | 0.000125 ct | 0.00013 ct | 0.000135 ct | 0.00014 ct | 0.000145 ct | 0.00015 ct | 0.000155 ct | 0.00016 ct | 0.000165 ct | 0.00017 ct | 0.000175 ct | 0.00018 ct | 0.000185 ct | 0.00019 ct | 0.000195 ct | 0.0002 ct | 0.000205 ct | 0.00021 ct | 0.000215 ct | 0.00022 ct | 0.000225 ct | 0.00023 ct | 0.000235 ct | 0.00024 ct | 0.000245 ct | 0.00025 ct | 0.000255 ct | 0.00026 ct | 0.000265 ct | 0.00027 ct | 0.000275 ct | 0.00028 ct | 0.000285 ct | 0.00029 ct | 0.000295 ct | 0.0003 ct | 0.000305 ct | 0.00031 ct | 0.000315 ct | 0.00032 ct | 0.000325 ct | 0.00033 ct | 0.000335 ct | 0.00034 ct | 0.000345 ct | 0.00035 ct | 0.000355 ct | 0.00036 ct | 0.000365 ct | 0.00037 ct | 0.000375 ct | 0.00038 ct | 0.000385 ct | 0.00039 ct | 0.000395 ct | 0.0004 ct | 0.000405 ct | 0.00041 ct | 0.000415 ct | 0.00042 ct | 0.000425 ct | 0.00043 ct | 0.000435 ct | 0.00044 ct | 0.000445 ct | 0.00045 ct | 0.000455 ct | 0.00046 ct | 0.000465 ct | 0.00047 ct | 0.000475 ct | 0.00048 ct | 0.000485 ct | 0.00049 ct | 0.000495 ct | 0.0005 ct |
microgram or microgramme is equal to 10-6 gram (unit of mass), comes from a combination of the metric prefix micro (µ) with the gram (g). Plural name is micrograms.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
microgram | µg | ≡ 10-6 g | ≡ 10-9 kg | Metric system SI |
micrograms | carats | micrograms | carats |
---|---|---|---|
1 | ≡ 5.0E-6 | 11 | ≡ 5.5E-5 |
2.5 | ≡ 1.25E-5 | 12.5 | ≡ 6.25E-5 |
4 | ≡ 2.0E-5 | 14 | ≡ 7.0E-5 |
5.5 | ≡ 2.75E-5 | 15.5 | ≡ 7.75E-5 |
7 | ≡ 3.5E-5 | 17 | ≡ 8.5E-5 |
8.5 | ≡ 4.25E-5 | 18.5 | ≡ 9.25E-5 |
10 | ≡ 5.0E-5 | 20 | ≡ 0.0001 |
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 | micrograms | carats | micrograms |
---|---|---|---|
1 | ≡ 200000 | 11 | ≡ 2200000 |
2.5 | ≡ 500000 | 12.5 | ≡ 2500000 |
4 | ≡ 800000 | 14 | ≡ 2800000 |
5.5 | ≡ 1100000 | 15.5 | ≡ 3100000 |
7 | ≡ 1400000 | 17 | ≡ 3400000 |
8.5 | ≡ 1700000 | 18.5 | ≡ 3700000 |
10 | ≡ 2000000 | 20 | ≡ 4000000 |
micrograms | carats |
---|---|
1 | ≡ 5.0 × 10-6 |
200 000 | ≡ 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 …) |