Convert Femtograys to Megagrays
Convert Femtograys (fGy) to Megagrays (MGy) instantly and accurately.
Conversion Formula
MGy = fGy × 1.000000000e-21
About Femtograys
The femtogray (fGy) equals 10⁻¹⁵ Gy, used in radiation biology to characterise the dose deposited by a single low-energy Auger electron cascade or a single traversal of a low-LET particle through a cell nucleus. Monte Carlo microdosimetry simulations of targeted radionuclide therapy report subcellular doses at the fGy level. 1 fGy = 10⁻¹⁵ Gy = 10⁻³ pGy.
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.
Quick Reference Table
| Femtograys (fGy) | Megagrays (MGy) |
|---|---|
| 1 fGy | 1 × 10-21 MGy |
| 2 fGy | 2 × 10-21 MGy |
| 5 fGy | 5 × 10-21 MGy |
| 10 fGy | 1 × 10-20 MGy |
| 25 fGy | 2.5 × 10-20 MGy |
| 50 fGy | 5 × 10-20 MGy |
| 100 fGy | 1 × 10-19 MGy |