Convert Milligram to Ounce
Turn Milligrams into Ounces in an instant. Type a value below to get an accurate mg → oz result, with the formula and a quick-reference table.
1 mg = 0.000035273962 oz
Quick answer: 1 Milligram = 0.000035273962 Ounce
Milligram to Ounce conversion table
| Milligram (mg) | Ounce (oz) |
|---|---|
| 1 mg | 0.000035273962 oz |
| 2 mg | 0.000070547924 oz |
| 5 mg | 0.00017636981 oz |
| 10 mg | 0.00035273962 oz |
| 20 mg | 0.00070547924 oz |
| 50 mg | 0.0017636981 oz |
| 100 mg | 0.0035273962 oz |
| 500 mg | 0.017636981 oz |
| 1,000 mg | 0.035273962 oz |
How to convert Milligram to Ounce
To convert Milligrams to Ounces, multiply the value by 0.000035273962.
- Take your measurement in Milligrams.
- Multiply it by 0.000035273962 — the number of Ounces in one Milligram.
- The result is the same amount, expressed in Ounces.
To go the other way, multiply Ounces by 28,349.523 — or simply divide by 0.000035273962.
For example, a typical paracetamol tablet is about 500 mg, which is 0.017636981 oz.
About Milligram and Ounce
A milligram is one-thousandth of a gram (1/1000 g), a unit for very small masses. It is used for medicine doses, vitamins and nutritional amounts.
An ounce is an imperial unit of mass equal to about 28.35 grams, or one-sixteenth of a pound. It is common in the United States for food packaging, postage and cooking.
The Milligram is a metric unit while the Ounce comes from the imperial / US customary system — which is exactly why this conversion comes up so often. One Milligram equals 0.000035273962 Ounces.
Other weight & mass conversions
Frequently asked questions
How many Ounces are in a Milligram?
1 Milligram equals 0.000035273962 Ounce (mg → oz). To convert any amount, multiply the number of Milligrams by 0.000035273962.
How do I convert Milligram to Ounce?
Enter the number of Milligrams in the converter above and read the result in Ounces. It applies the exact mg → oz factor instantly, with full precision.
Is the Milligram to Ounce converter free?
Yes — it is completely free and unlimited, needs no sign-up, and runs right in your browser, so it is instant and private.
Is the conversion accurate?
Yes. It uses the internationally defined weight & mass factors and full floating-point precision, then rounds the display to a clean, readable number.