How many ounces are in 1 milligram?

1 milligram equals 0.000035274 oz.

How do I convert ounces back to milligrams?

Use the reverse converter: 1 ounce equals 28349.5 mg.

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert milligrams to ounces, multiply the value by 0.0000352739619.

oz = mg × 0.0000352739619

40 mg × 0.0000352739619 = 0.001411 oz

Milligram (mg): Used for medicine doses and nutrition labels worldwide. One thousandth of a gram.
Ounce (oz): Used for food, postal and precious-metal weights in the US and UK. The avoirdupois ounce is exactly 28.349523125 grams.

How do I convert milligrams to ounces?: To convert milligrams to ounces, multiply the value by 0.0000352739619.
How many ounces are in 1 milligram?: 1 milligram equals 0.000035274 oz.
How many ounces are in 10 milligrams?: 10 mg equals 0.00035274 oz.
How do I convert ounces back to milligrams?: Use the reverse converter: 1 ounce equals 28349.5 mg.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.