Milligram to Ounce Converter
Type a value — the answer appears instantly. 1 mg = 0.000035274 oz.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
0.000035274 ounces
= 0.000001 kg= 0.0000022046 lb
equals 0.000035274 ouncesFormula: oz = mg × 0.000035273962
Milligram to Ounce formula
oz = mg × 0.000035273962
Convert 5 milligrams to ounces
- Start with 5 milligrams.
- Multiply by the conversion factor: 5 × 0.000035274 = 0.00017637.
- So 5 mg = 0.00017637 oz.
Milligram to Ounce conversion table
| Milligrams (mg) | Ounces (oz) |
|---|---|
| 0.01 mg | 0.0000003527 oz |
| 0.1 mg | 0.0000035274 oz |
| 0.25 mg | 0.0000088185 oz |
| 0.5 mg | 0.000017637 oz |
| 1 mg | 0.000035274 oz |
| 2 mg | 0.0000705479 oz |
| 3 mg | 0.000105822 oz |
| 4 mg | 0.000141096 oz |
| 5 mg | 0.00017637 oz |
| 6 mg | 0.000211644 oz |
| 7 mg | 0.000246918 oz |
| 8 mg | 0.000282192 oz |
| 9 mg | 0.000317466 oz |
| 10 mg | 0.00035274 oz |
| 15 mg | 0.000529109 oz |
| 20 mg | 0.000705479 oz |
| 25 mg | 0.000881849 oz |
| 30 mg | 0.00105822 oz |
| 40 mg | 0.00141096 oz |
| 50 mg | 0.0017637 oz |
| 75 mg | 0.00264555 oz |
| 100 mg | 0.0035274 oz |
| 250 mg | 0.00881849 oz |
| 500 mg | 0.017637 oz |
| 1,000 mg | 0.035274 oz |
| 5,000 mg | 0.17637 oz |
| 10,000 mg | 0.35274 oz |
Unit definitions
What is a milligram?
The milligram is one millionth of a kilogram, or one thousandth of a gram. It is the standard unit for dosing medication, vitamins, and nutritional supplements, and for weighing very small quantities in laboratories. A grain of table salt weighs roughly one milligram.
What is a ounce?
The avoirdupois ounce is one sixteenth of a pound, about 28.35 grams. It is common in the United States for food portions, packaged goods, and postal weights. It should not be confused with the troy ounce used for precious metals.
Frequently asked questions
How many ounces are in one milligram?
One milligram equals 0.000035274 ounces (1 mg = 0.000035274 oz).
How do I convert milligrams to ounces?
Multiply the value in milligrams by 0.000035274. For example, 10 mg × 0.000035274 = 0.00035274 oz.
Which is bigger — a milligram or a ounce?
A ounce is bigger: one ounce contains 28,349.5 milligrams.
Is this milligram to ounce converter free?
Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.
Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.