Convert Micrograms to Carats
Convert Micrograms to Carats instantly. 1 Microgram (µg) equals 0.000005 Carats (ct).
Micrograms to Carats conversion table
| Micrograms (µg) | Carats (ct) |
|---|---|
| 1 µg | 0.000005 ct |
| 2 µg | 0.00001 ct |
| 3 µg | 0.000015 ct |
| 5 µg | 0.000025 ct |
| 10 µg | 0.00005 ct |
| 20 µg | 0.0001 ct |
| 50 µg | 0.00025 ct |
| 100 µg | 0.0005 ct |
| 500 µg | 0.0025 ct |
| 1,000 µg | 0.005 ct |
1 Microgram = 0.000005 Carats · multiply Micrograms by 0.000005
About converting Micrograms to Carats
Micrograms (µg) and Carats (ct) are both units of weight & mass, so converting between them is a single multiplication: multiply your Micrograms figure by 0.000005. Ten Micrograms comes to 0.00005 Carats, and a hundred works out at 0.0005 Carats.
Rule of thumb: going from Micrograms to Carats divides, so the figure always shrinks — it takes about 200,000 Micrograms to make a single Carat. If your answer came out bigger, you have the conversion the wrong way round.
What is a Microgram?
A microgram is one millionth of a gram, and in medicine it is a genuinely dangerous unit. Several important drugs — levothyroxine for the thyroid, fentanyl, digoxin — are dosed in micrograms while others are dosed in milligrams, and a prescription misread across that thousandfold gap is a well-documented category of medication error. Because a handwritten Greek µ can be mistaken for an m, hospital safety guidance often requires the abbreviation to be spelled out as "mcg" instead. Outside the clinic, micrograms measure vitamins and airborne pollutants.
What is a Carat?
The metric carat is 0.2 grams exactly, standardised early in the twentieth century to replace a tangle of local carats that differed from one gem market to the next. Its name is traditionally traced to the carob seed, once used as a counterweight for small valuables. The trap is the near-identical karat, which is not a mass at all — it measures gold purity in twenty-fourths, so 18-karat gold is eighteen parts gold to six of other metal. Jewellers also split the carat into 100 points, which is why a "fifty-point" diamond is simply half a carat.
To put both in perspective: a single grain of table salt weighs a few dozen micrograms, while a typical engagement-ring diamond weighs about one carat.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Carats to Micrograms converter, or browse all Weight & Mass converters.
Frequently asked questions
How many Carats are in one Microgram?
There are 0.000005 Carats in one Microgram.
How do I convert Micrograms to Carats?
Multiply the number of Micrograms by 0.000005. For example, 10 Micrograms = 0.00005 Carats.
What is 100 Micrograms in Carats?
100 Micrograms is equal to 0.0005 Carats.
How do I convert Carats to Micrograms?
Multiply the Carats value by 200,000 (or divide by 0.000005).
Is this Micrograms to Carats conversion exact?
The definition is exact — Micrograms and Carats are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Microgram?
A microgram is one millionth of a gram, and in medicine it is a genuinely dangerous unit. Several important drugs — levothyroxine for the thyroid, fentanyl, digoxin — are dosed in micrograms while others are dosed in milligrams, and a prescription misread across that thousandfold gap is a well-documented category of medication error. Because a handwritten Greek µ can be mistaken for an m, hospital safety guidance often requires the abbreviation to be spelled out as "mcg" instead. Outside the clinic, micrograms measure vitamins and airborne pollutants.
What is a Carat?
The metric carat is 0.2 grams exactly, standardised early in the twentieth century to replace a tangle of local carats that differed from one gem market to the next. Its name is traditionally traced to the carob seed, once used as a counterweight for small valuables. The trap is the near-identical karat, which is not a mass at all — it measures gold purity in twenty-fourths, so 18-karat gold is eighteen parts gold to six of other metal. Jewellers also split the carat into 100 points, which is why a "fifty-point" diamond is simply half a carat.