Convert Rads to Milligrays
Convert Rads (rad) to Milligrays (mGy) instantly and accurately.
Conversion Formula
mGy = rad × 10
About Rads
The rad (rad) equals exactly 0.01 Gy = 100 erg/g. The pre-SI unit of absorbed dose, defined by the ICRU in 1953, still widely used in the US in radiation therapy (cGy = rad numerically), radiation biology, and NRC regulations. Whole-body 50% lethal dose (LD50) for humans ~350-450 rad. 1 rad = 0.01 Gy = 1 cGy.
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
| Rads (rad) | Milligrays (mGy) |
|---|---|
| 1 rad | 10 mGy |
| 2 rad | 20 mGy |
| 5 rad | 50 mGy |
| 10 rad | 100 mGy |
| 25 rad | 250 mGy |
| 50 rad | 500 mGy |
| 100 rad | 1000 mGy |