Convert Millirads to Micrograys (mrad to µGy)
1 millirad (mrad) = 10 micrograys (µGy). 1 µGy = 0.1 mrad. Example: 15 mrad = 15 × 10 = 150 µGy.
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1 mrad = 10 µGy
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk millirad to microgray converter to paste a column from Excel.
How to Convert Millirad to Microgray
- 1 mrad = 10 µGy
- 1 µGy = 0.1 mrad
- Example: convert 15 mrad to µGy: 15 mrad = 15 × 10 µGy = 150 µGy
Formula
µGy = mrad × 10
Derivation from SI units:
- 1 mrad = 10⁻⁵ Gy = 10 µGy.
- 1 µGy = 10⁻⁶ Gy.
- 1 mrad = 0.00001 Gy ÷ 0.000001 Gy per µGy = 10 µGy
Both units are defined exactly, so the factor is exact. Millirad definition: millirad; Microgray definition: microgray.
Worked examples
- A reading of 0.5 mrad converts to 5 µGy.
0.5 mrad × 10 = 5 µGy - A value of 5 mrad is 50 µGy.
5 mrad × 10 = 50 µGy
Millirad to Microgray conversion table
| Millirads (mrad) | Micrograys (µGy) |
|---|---|
| 0.001 mrad | 0.01 µGy |
| 0.01 mrad | 0.1 µGy |
| 0.1 mrad | 1 µGy |
| 0.5 mrad | 5 µGy |
| 1 mrad | 10 µGy |
| 2 mrad | 20 µGy |
| 5 mrad | 50 µGy |
| 10 mrad | 100 µGy |
| 50 mrad | 500 µGy |
| 100 mrad | 1000 µGy |
Where it's used
Millirads are used for older X-ray dose figures, while micrograys appear in dental and chest X-ray air kerma. Both measure absorbed dose of ionising radiation, so the conversion is a fixed factor.
Millirad to other absorbed dose units
| Conversion | 1 mrad equals |
|---|---|
| millirad to microgray | 10 µGy |
| millirad to gray | 0.00001 Gy |
| millirad to milligray | 0.01 mGy |
| millirad to rad | 0.001 rad |
| millirad to centigray | 0.001 cGy |
| millirad to kilogray | 1 × 10⁻⁸ kGy |
Frequently asked questions
How many micrograys are in 1 millirad?
1 mrad = 10 µGy.
How do I convert millirads to micrograys?
Multiply the value in mrad by 10. For example, 15 mrad × 10 = 150 µGy.
Is the mrad to µGy conversion exact?
Yes. Both units are defined exactly, and 1 mrad is exactly 10 µGy.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "rad (absorbed dose)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (becquerel, gray, sievert, lux) and Table 2 (candela).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Millirads to Micrograys (mrad to µGy). Retrieved October 25, 2026, from https://scientificconverters.com/absorbed-dose/millirads-to-micrograys/
IEEE
Scientific Converters, "Convert Millirads to Micrograys (mrad to µGy)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/absorbed-dose/millirads-to-micrograys/