500 mcg to mg
500 mcg = 0.5 mg
500 micrograms equals 0.5 milligrams.
How to convert 500 mcg to mg
Use the formula mg = mcg ÷ 1000:
mg = 500 ÷ 1000mg = 0.5
So 500 mcg = 0.5 mg.
Rounded values and quick estimate
- Rounded to a whole number: 1 mg
- Rounded to one decimal place: 0.5 mg
- Conversion factor: 1 microgram = 0.001 milligrams
This conversion is exact, so there is no need to estimate: just divide by 1,000.
500 mcg in other units
- Milligrams
- 0.5 mg
- Grams
- 0.0005 g
- Ounces
- 0.000018 oz
- Pounds
- 0.000001 lb
- Carats
- 0.0025 ct
- Troy ounces
- 0.000016 ozt
- Tolas
- 0.000043 tola
- Grains
- 0.007716 gr
500 mcg and nearby values
| Micrograms | Milligrams |
|---|---|
| 496 mcg | 0.496 mg |
| 497 mcg | 0.497 mg |
| 498 mcg | 0.498 mg |
| 499 mcg | 0.499 mg |
| 500 mcg | 0.5 mg |
| 501 mcg | 0.501 mg |
| 502 mcg | 0.502 mg |
| 503 mcg | 0.503 mg |
| 504 mcg | 0.504 mg |
About micrograms and milligrams
A microgram (mcg or µg) is one millionth of a gram, or one thousandth of a milligram. Vitamin D, B12 and folate doses are often given in micrograms.
A milligram is one thousandth of a gram. Medicine doses, vitamins and nutrition labels commonly use milligrams.
Related conversions
Frequently asked questions
What is 500 mcg in mg?
500 micrograms is 0.5 milligrams (500 mcg = 0.5 mg).
How do you convert 500 mcg to mg?
Apply mg = mcg ÷ 1000: mg = 500 ÷ 1000, mg = 0.5.
How many micrograms is 0.5 mg?
0.5 mg is about 500 micrograms.