Rem is 0.01 sievert.
Rem to Milligray
Convert Rem (rem) to Milligray (mGy) instantly. Free online radiation converter with formulas, tables and examples.
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Radiation Converter
Convert radioactivity, absorbed dose, and equivalent dose units by compatible radiation family.
Context values
Some unit families need one extra value for a physically accurate result.
Milligray is 0.001 gray units.
mGy = rem × 10
Results update instantly for Rem to Milligray conversions.
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Formula
1 Rem = 10 Milligray
mGy = rem × 10
rem = mGy ÷ 10
Conversion table
| 1 rem | 10 mGy |
| 2 rem | 20 mGy |
| 5 rem | 50 mGy |
| 10 rem | 100 mGy |
| 20 rem | 200 mGy |
| 50 rem | 500 mGy |
| 100 rem | 1000 mGy |
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Frequently asked questions
How many Milligrays are in one Rem?
One Rem equals 10 Milligrays.
How do I convert Rem to Milligray?
Multiply the number of Rems by 10 to get Milligrays. To go the other way, multiply Milligrays by 0.1 (or divide by 10) to get Rems.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Rem and Milligray, so the result shown is mathematically precise (rounded only for display).
When is Rem to Milligray conversion commonly used?
It is commonly used in nuclear medicine, radiation safety, health physics, and scientific research involving radioactivity and radiation dose.
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About this conversion
Rem and Milligray are units used in the radiation family of measurements. Rem measures equivalent radiation dose (biological risk-weighted dose), while Milligray measures absorbed radiation dose (energy deposited per unit mass). This page provides the direct numeric ratio between the two units. This converter uses the precise relationship 1 Rem = 10 Milligrays (equivalently 1 Milligray = 0.1 Rems), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.