---
title: "Milligrams to Ounces — mg to oz converter"
description: "1 milligram = 0.00003527 ounces. Convert milligrams to ounces with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/mg-to-oz/
site: "At One Place"
---

# Milligrams to ounces

**1 milligram in ounces: 1 mg = 0.00003527 oz**

oz = mg × 0.000035273962

To convert milligrams to ounces, multiply by 0.000035273962. The table below gives the values people look up most often, and the converter works for any number.

## Milligrams to ounces table

*Common milligram values converted to ounces.*

| Milligrams | Ounces |
| --- | --- |
| 1 mg | 0.00003527 |
| 2 mg | 0.00007055 |
| 3 mg | 0.0001058 |
| 4 mg | 0.0001411 |
| 5 mg | 0.0001764 |
| 10 mg | 0.0003527 |
| 15 mg | 0.0005291 |
| 20 mg | 0.0007055 |
| 25 mg | 0.0008818 |
| 30 mg | 0.0010582 |
| 40 mg | 0.001411 |
| 50 mg | 0.0017637 |
| 75 mg | 0.0026455 |
| 100 mg | 0.0035274 |
| 250 mg | 0.0088185 |
| 500 mg | 0.017637 |
| 1,000 mg | 0.035274 |

## How the conversion works

The relationship is oz = mg × 0.000035273962. Both units measure mass, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

## Common questions

### How many ounces are in one milligram?

One milligram equals 0.00003527 ounces. oz = mg × 0.000035273962.

### How do you convert milligrams to ounces?

Use oz = mg × 0.000035273962. So 10 mg is 0.0003527 oz.

### How many milligrams are in one ounce?

One ounce equals 28,349.523 milligrams, which is the reverse of the conversion above.

## Related pages

- [Ounces to Milligrams](https://atoneplace.net/convert/oz-to-mg/)
- [Milligrams to Kilograms](https://atoneplace.net/convert/mg-to-kg/)
- [Milligrams to Grams](https://atoneplace.net/convert/mg-to-grams/)
- [Milligrams to Tonnes](https://atoneplace.net/convert/mg-to-tonnes/)
- [Milligrams to Pounds](https://atoneplace.net/convert/mg-to-lbs/)
- [Milligrams to Stone](https://atoneplace.net/convert/mg-to-stone/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)