Convert Micrograms to Grams
1 microgram is 0.000001 g. One microgram is exactly 0.000001 grams.
One microgram is 1.0000 × 10^-6 grams. To convert micrograms to grams, multiply by 1.0000 × 10^-6; to go the other way, divide by 1.0000 × 10^-6 or multiply by 1000000. The factor is exact rather than rounded: it follows from NIST Handbook 44. One millionth of a gram.
Factor checked against the defining standard · How we check
Grams
0.000001 g
- Micrograms × 1.0000 × 10^-6
value * 0.0000010 g
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 |
| grams | 0.000001 g | × 0.000001 |
| kilograms | 0.000000001 kg | × 0.000000001 |
| tonnes | 0.000000000001 t | × 0.000000000001 |
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 grams?
- 1.Take the measurement in micrograms.
- 2.Multiply by 1.0000 × 10^-6 — that is how many grams fit in one microgram.
- 3.To go back the other way, divide by 1.0000 × 10^-6, or multiply by 1000000.
Micrograms to grams conversion table
| Micrograms | Grams |
|---|---|
| 1 mcg | 0.000001 g |
| 2 mcg | 0.000002 g |
| 3 mcg | 0.000003 g |
| 4 mcg | 0.000004 g |
| 5 mcg | 0.000005 g |
| 6 mcg | 0.000006 g |
| 7 mcg | 0.000007 g |
| 8 mcg | 0.000008 g |
| 9 mcg | 0.000009 g |
| 10 mcg | 0.00001 g |
| 12 mcg | 0.000012 g |
| 15 mcg | 0.000015 g |
| 20 mcg | 0.00002 g |
| 25 mcg | 0.000025 g |
| 50 mcg | 0.00005 g |
| 100 mcg | 0.0001 g |
What are micrograms and grams?
- 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.
- Gram (g)
- One thousandth of a kilogram, and the unit nutrition labels use worldwide.
Questions people actually ask
- How many grams are in a microgram?
- 1.0000 × 10^-6. One thousandth of a kilogram, and the unit nutrition labels use worldwide.
- How do I convert grams back to micrograms?
- Divide by 1.0000 × 10^-6, or multiply by 1000000 — they are the same operation.
Other weight conversions
Grams to micrograms — the same conversion the other way.