Convert Megagrays to Rads
Convert Megagrays (MGy) to Rads (rad) instantly and accurately.
Conversion Formula
rad = MGy × 100000000
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 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
| Megagrays (MGy) | Rads (rad) |
|---|---|
| 1 MGy | 100000000 rad |
| 2 MGy | 200000000 rad |
| 5 MGy | 500000000 rad |
| 10 MGy | 1000000000 rad |
| 25 MGy | 2.5 × 109 rad |
| 50 MGy | 5 × 109 rad |
| 100 MGy | 1 × 1010 rad |