Convert Milligrays to Rads
Convert Milligrays (mGy) to Rads (rad) instantly and accurately.
Conversion Formula
rad = mGy × 0.1
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.
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.
Quick Reference Table
| Milligrays (mGy) | Rads (rad) |
|---|---|
| 1 mGy | 0.1 rad |
| 2 mGy | 0.2 rad |
| 5 mGy | 0.5 rad |
| 10 mGy | 1 rad |
| 25 mGy | 2.5 rad |
| 50 mGy | 5 rad |
| 100 mGy | 10 rad |