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# milligram

noun (milligram, milligrams — also spelled milligramme in the UK; symbol mg)

«milligram» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

A milligram is a very small unit of mass equal to one thousandth of a gram. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/milligram/#m1)

### In the lessons

In maths and science lessons, 1000 milligrams = 1 gram and 1000 grams = 1 kilogram; milligrams measure tiny amounts, like medicine doses or vitamins on food labels. In everyday safety, medicine labels give the dose in mg. Common phrases: «milligrams per day», «a 200 mg tablet», «mg of salt».

### Examples

- There are 1000 milligrams in one gram. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/milligram/#x1)
- Each tablet contains 200 milligrams of ibuprofen. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/milligram/#x2)
- A grain of salt weighs about a tenth of a milligram. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/milligram/#x3)
- The label says 30 mg of vitamin C in each glass. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/milligram/#x4)
- Convert 3 grams to milligrams: 3 × 1000 = 3000 mg. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/milligram/#x5)
- A mosquito weighs about two milligrams. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/milligram/#x6)
- The doctor checked the dose in milligrams. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/milligram/#x7)

### Note

Plural: milligrams. Symbol: mg (no full stop, no s: 50 mg). «Milli-» means one thousandth. Trap: do not mix up mg (milligram) and ml (millilitre); mg measures mass, ml measures volume. To change grams to milligrams, multiply by 1000; milligrams to grams, divide by 1000.

## On Mova

- [Trees and pragmatics of «milligram» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/milligram/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«milligram» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/milligram.html) on Mova free.