Milligram to Ounce Converter
Weight · unit-converter
Convert Milligram to Ounce with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use gram-based factors (international avoirdupois pound and metric definitions). The full Weight Converter also includes carat, grain, and US/UK hundredweight.
Calculator
From: Milligram (mg)
To: Ounce (oz)
About Milligram
The milligram is one thousandth of a gram. Medication doses and fine measurements use milligrams.
About Ounce
The avoirdupois ounce is 1/16 of an avoirdupois pound (about 28.35 g). Cooking and postal weights often use ounces.
How to convert milligrams to ounces
1 milligram is equal to 0.00003527396195 ounce:
1 mg = (0.001 g ÷ 28.349523125 g) oz = 0.00003527396195 oz
Each milligram is defined as 0.001 g and each ounce as 28.349523125 g, so one mg equals 0.001 ÷ 28.349523125 oz = 0.00003527396195 oz.
Let w(mg) be the numeric value of the same mass measured in Milligram (mg), and w(oz) the value in Ounce (oz). Then:
w(oz) = w(mg) × (0.001 / 28.349523125)
Equivalently, divide by how many mg fit into one oz (grams per oz divided by grams per mg):
w(oz) = w(mg) ÷ 28349.52312499999971
Or: ounce = milligram ÷ 28349.52312499999971
Examples
Example #1: Convert 20 mg to ounce
20 mg = 20 mg × (0.001/28.349523125) oz = 0.0007054792 oz
20 mg = 20 mg ÷ 28349.52312499999971 = 0.0007054792 oz
Example #2: Convert 50 mg to ounce
50 mg = 50 mg × (0.001/28.349523125) oz = 0.0017636981 oz
50 mg = 50 mg ÷ 28349.52312499999971 = 0.0017636981 oz
Summary
To convert Milligram to Ounce, multiply the value in mg by the ratio of grams per mg divided by grams per oz. Equivalently: value_oz = value_mg × (0.001 / 28.349523125). Numerically, 1 mg equals 0.000035273961949580415 oz.
Relationship context
You are converting between metric (SI) (Milligrams) and imperial / UK (stone, long ton, pound, ounce) (Ounces). Metric mass is decimal from the gram; US and imperial masses use pounds and ounces with fixed definitions relative to the kilogram. The numeric factor used here is 3.527396e-5.
Conversion tables
| Milligram (mg) | Ounce (oz) |
|---|---|
| 0.1 | 0.0000035274 |
| 1 | 0.000035274 |
| 2 | 0.0000705479 |
| 3 | 0.0001058219 |
| 4 | 0.0001410958 |
| 5 | 0.0001763698 |
| 6 | 0.0002116438 |
| 7 | 0.0002469177 |
| 8 | 0.0002821917 |
| 9 | 0.0003174657 |
| Milligram (mg) | Ounce (oz) |
|---|---|
| 10 | 0.0003527396 |
| 20 | 0.0007054792 |
| 30 | 0.0010582189 |
| 40 | 0.0014109585 |
| 50 | 0.0017636981 |
| 60 | 0.0021164377 |
| 70 | 0.0024691773 |
| 80 | 0.002821917 |
| 90 | 0.0031746566 |
| 100 | 0.0035273962 |