Convert Micrograms to Centigrams
1 microgram is 0.0001 cg. One microgram is exactly 0.0001 centigrams.
One microgram is 1.0000 × 10^-4 centigrams. To convert micrograms to centigrams, multiply by 1.0000 × 10^-4; to go the other way, divide by 1.0000 × 10^-4 or multiply by 10000. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 44. One millionth of a gram.
Factor checked against the defining standard · How we check
- Micrograms × 1.0000 × 10^-4
1 * 0.00010 cg
1 microgram in every weight unit
| Unit | Value | Exact factor |
|---|---|---|
| ounces | 0.00000003527396195 oz | × 0.0000000352739619496 |
| pounds | 0.000000002204622622 lb | × 0.00000000220462262185 |
| stone | 0.0000000001574730444 st | × 0.000000000157473044418 |
| US tons | 0.000000000001102311311 ton | × 0.00000000000110231131092 |
| micrograms (as entered) | 1 mcg | — |
| milligrams | 0.001 mg | × 0.001 |
| centigrams | 0.0001 cg | × 0.0001 |
| grams | 0.000001 g | × 0.000001 |
| kilograms | 0.000000001 kg | × 0.000000001 |
| slugs | 0.00000000006852176586 slug | × 0.0000000000685217658568 |
| tonnes | 0.000000000001 t | × 0.000000000001 |
| carats | 0.000005 ct | × 0.000005 |
| troy ounces | 0.00000003215074657 ozt | × 0.0000000321507465686 |
| grains | 0.00001543235835 gr | × 0.0000154323583529 |
| long tons | 0 LT | × 0.000000000000984206527611 |
Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert micrograms to centigrams? The converter and the working
- 1.Take the measurement in micrograms.
- 2.Multiply by 1.0000 × 10^-4 — that is how many centigrams fit in one microgram.
- 3.To go back the other way, divide by 1.0000 × 10^-4, or multiply by 10000.
Worked example: 25 micrograms to centigrams
- Formula
- mcg × 1.0000 × 10^-4 = cg
- Arithmetic
- 25 × 1.0000 × 10^-4 = 0.0025 cg
- Answer
- 25 mcg = 0.0025 cg
The factor is rounded for display; the figure above is computed from the full value.
Micrograms to centigrams conversion table
| Micrograms | Centigrams |
|---|---|
| 1 mcg | 0.0001 cg |
| 2 mcg | 0.0002 cg |
| 3 mcg | 0.0003 cg |
| 4 mcg | 0.0004 cg |
| 5 mcg | 0.0005 cg |
| 6 mcg | 0.0006 cg |
| 7 mcg | 0.0007 cg |
| 8 mcg | 0.0008 cg |
| 9 mcg | 0.0009 cg |
| 10 mcg | 0.001 cg |
| 12 mcg | 0.0012 cg |
| 15 mcg | 0.0015 cg |
| 20 mcg | 0.002 cg |
| 25 mcg | 0.0025 cg |
| 50 mcg | 0.01 cg |
| 100 mcg | 0.01 cg |
| 200 mcg | 0.02 cg |
| 300 mcg | 0.03 cg |
| 500 mcg | 0.05 cg |
| 1000 mcg | 0.1 cg |
| 2000 mcg | 0.2 cg |
| 5000 mcg | 0.5 cg |
| 10000 mcg | 1 cg |
What is a microgram?
One millionth of a gram. Written mcg rather than µg on labels deliberately: the Greek letter is the character most often lost in transcription, and a factor of a thousand in a dose is not a rounding error.
What is a centigram?
A hundredth of a gram, or ten milligrams. It survives mainly in pharmacology and in school exercises about metric prefixes.
How many centigrams are in a microgram?
One microgram is 1.0000 × 10^-4 centigrams. Going the other way, one centigram is 10000 micrograms. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every weight unit here
The whole group — 15 units with their symbols and the size of each one in kilograms — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a microgram.
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Questions people actually ask
- How many centigrams are in a microgram?
- 1.0000 × 10^-4. A hundredth of a gram, or ten milligrams. It survives mainly in pharmacology and in school exercises about metric prefixes.
- How do I convert centigrams back to micrograms?
- Divide by 1.0000 × 10^-4, or multiply by 10000 — they are the same operation.
Other weight conversions
Centigrams to micrograms — the same conversion the other way.