Convert Megagrays to Milligrays
Convert Megagrays (MGy) to Milligrays (mGy) instantly and accurately.
Conversion Formula
mGy = MGy × 1000000000
About Megagrays
The megagray (MGy) equals 10⁶ Gy. Doses in the MGy range destroy virtually all molecular structures. Radiation chemistry of water reaches radical recombination equilibrium above 1 MGy; neutron-irradiated reactor pressure vessel steels accumulate fast-neutron damage equivalent to 0.01-1 MGy over a 40-year lifetime. 1 MGy = 10⁶ Gy = 10⁸ rad.
About Milligrays
The milligray (mGy) equals 10⁻³ Gy and is the standard unit for diagnostic radiology patient doses. CT head scan ~20-60 mGy; abdominal CT ~10-30 mGy; mammography mean glandular dose ~1-3 mGy. IAEA and EU medical exposure directives set diagnostic reference levels in mGy. 1 mGy = 10⁻³ Gy = 0.1 rad.
Quick Reference Table
| Megagrays (MGy) | Milligrays (mGy) |
|---|---|
| 1 MGy | 1000000000 mGy |
| 2 MGy | 2 × 109 mGy |
| 5 MGy | 5 × 109 mGy |
| 10 MGy | 1 × 1010 mGy |
| 25 MGy | 2.5 × 1010 mGy |
| 50 MGy | 5 × 1010 mGy |
| 100 MGy | 1 × 1011 mGy |