Convert Grams to Micrograms
1 gram is 1,000,000 mcg. One gram is exactly 1000000 micrograms.
One gram is 1000000 micrograms. To convert grams to micrograms, multiply by 1000000; to go the other way, divide by 1000000 or multiply by 1.0000 × 10^-6. The factor is exact rather than rounded: it follows from NIST Handbook 44. One thousandth of a kilogram, and the unit nutrition labels use worldwide.
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Micrograms
1,000,000 mcg
- Grams × 1000000
value * 10000001,000,000 mcg
1 gram in every weight unit
| Unit | Value | Exact factor |
|---|---|---|
| ounces | 0.03527396195 oz | × 0.0352739619496 |
| pounds | 0.002204622622 lb | × 0.00220462262185 |
| stone | 0.0001574730444 st | × 0.000157473044418 |
| US tons | 0.000001102311311 ton | × 0.00000110231131092 |
| micrograms | 1,000,000 mcg | × 1,000,000 |
| milligrams | 1,000 mg | × 1,000 |
| grams (as entered) | 1 g | — |
| kilograms | 0.001 kg | × 0.001 |
| tonnes | 0.000001 t | × 0.000001 |
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 grams to micrograms?
- 1.Take the measurement in grams.
- 2.Multiply by 1000000 — that is how many micrograms fit in one gram.
- 3.To go back the other way, divide by 1000000, or multiply by 1.0000 × 10^-6.
Grams to micrograms conversion table
| Grams | Micrograms |
|---|---|
| 1 g | 1,000,000 mcg |
| 2 g | 2,000,000 mcg |
| 3 g | 3,000,000 mcg |
| 4 g | 4,000,000 mcg |
| 5 g | 5,000,000 mcg |
| 6 g | 6,000,000 mcg |
| 7 g | 7,000,000 mcg |
| 8 g | 8,000,000 mcg |
| 9 g | 9,000,000 mcg |
| 10 g | 10,000,000 mcg |
| 12 g | 12,000,000 mcg |
| 15 g | 15,000,000 mcg |
| 20 g | 20,000,000 mcg |
| 25 g | 25,000,000 mcg |
| 50 g | 50,000,000 mcg |
| 100 g | 100,000,000 mcg |
What are grams and micrograms?
- Gram (g)
- One thousandth of a kilogram, and the unit nutrition labels use worldwide.
- Microgram (mcg)
- 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.
Questions people actually ask
- How many micrograms are in a gram?
- 1000000. 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.
- How do I convert micrograms back to grams?
- Divide by 1000000, or multiply by 1.0000 × 10^-6 — they are the same operation.
Other weight conversions
Micrograms to grams — the same conversion the other way.