Milligray is 0.001 gray units.
Milligray to Millisievert
Convert Milligray (mGy) to Millisievert (mSv) instantly. Free online radiation converter with formulas, tables and examples.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
Converter
Radiation Converter
Convert radioactivity, absorbed dose, and equivalent dose units by compatible radiation family.
Millisievert is 0.001 sievert units.
mSv = mGy × 1
Results update instantly for Milligray to Millisievert conversions.
Reserved above the conversion cards and below the converter.
Formula
1 Milligray = 1 Millisievert
mSv = mGy × 1
mGy = mSv ÷ 1
Conversion table
| 1 mGy | 1 mSv |
| 2 mGy | 2 mSv |
| 5 mGy | 5 mSv |
| 10 mGy | 10 mSv |
| 20 mGy | 20 mSv |
| 50 mGy | 50 mSv |
| 100 mGy | 100 mSv |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many Millisieverts are in one Milligray?
One Milligray equals 1 Millisieverts.
How do I convert Milligray to Millisievert?
Multiply the number of Milligrays by 1 to get Millisieverts. To go the other way, multiply Millisieverts by 1 (or divide by 1) to get Milligrays.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Milligray and Millisievert, so the result shown is mathematically precise (rounded only for display).
When is Milligray to Millisievert conversion commonly used?
It is commonly used in nuclear medicine, radiation safety, health physics, and scientific research involving radioactivity and radiation dose.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
Milligray and Millisievert are units used in the radiation family of measurements. Milligray measures absorbed radiation dose (energy deposited per unit mass), while Millisievert measures equivalent radiation dose (biological risk-weighted dose). This page provides the direct numeric ratio between the two units. This converter uses the precise relationship 1 Milligray = 1 Millisieverts (equivalently 1 Millisievert = 1 Milligrays), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.