Convert Micrograys to Millirads (µGy to mrad)
1 microgray (µGy) = 0.1 millirads (mrad). 1 mrad = 10 µGy. Example: 15 µGy = 15 × 0.1 = 1.5 mrad.
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1 µGy = 0.1 mrad
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk microgray to millirad converter to paste a column from Excel.
How to Convert Microgray to Millirad
- 1 µGy = 0.1 mrad
- 1 mrad = 10 µGy
- Example: convert 15 µGy to mrad: 15 µGy = 15 × 0.1 mrad = 1.5 mrad
Formula
mrad = µGy ÷ 10
Derivation from SI units:
- 1 µGy = 10⁻⁶ Gy.
- 1 mrad = 10⁻⁵ Gy = 10 µGy.
- 1 µGy = 0.000001 Gy ÷ 0.00001 Gy per mrad = 0.1 mrad
Both units are defined exactly, so the factor is exact. Microgray definition: microgray; Millirad definition: millirad.
Worked examples
- A reading of 0.5 µGy converts to 0.05 mrad.
0.5 µGy × 0.1 = 0.05 mrad - A value of 5 µGy is 0.5 mrad.
5 µGy × 0.1 = 0.5 mrad
Microgray to Millirad conversion table
| Micrograys (µGy) | Millirads (mrad) |
|---|---|
| 0.001 µGy | 0.0001 mrad |
| 0.01 µGy | 0.001 mrad |
| 0.1 µGy | 0.01 mrad |
| 0.5 µGy | 0.05 mrad |
| 1 µGy | 0.1 mrad |
| 2 µGy | 0.2 mrad |
| 5 µGy | 0.5 mrad |
| 10 µGy | 1 mrad |
| 50 µGy | 5 mrad |
| 100 µGy | 10 mrad |
Where it's used
Micrograys are used for dental and chest X-ray air kerma, while millirads appear in older X-ray dose figures. Both measure absorbed dose of ionising radiation, so the conversion is a fixed factor.
Microgray to other absorbed dose units
| Conversion | 1 µGy equals |
|---|---|
| microgray to millirad | 0.1 mrad |
| microgray to gray | 0.000001 Gy |
| microgray to milligray | 0.001 mGy |
| microgray to rad | 0.0001 rad |
| microgray to centigray | 0.0001 cGy |
| microgray to kilogray | 1 × 10⁻⁹ kGy |
Frequently asked questions
How many millirads are in 1 microgray?
1 µGy = 0.1 mrad.
How do I convert micrograys to millirads?
Multiply the value in µGy by 0.1, or divide it by 10. For example, 15 µGy × 0.1 = 1.5 mrad.
Is the µGy to mrad conversion exact?
Yes. Both units are defined exactly, and 1 µGy is exactly 0.1 mrad.
Sources
- 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).
- 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)".
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 Micrograys to Millirads (µGy to mrad). Retrieved October 25, 2026, from https://scientificconverters.com/absorbed-dose/micrograys-to-millirads/
IEEE
Scientific Converters, "Convert Micrograys to Millirads (µGy to mrad)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/absorbed-dose/micrograys-to-millirads/