Convert Femtograys to Millirads
Convert Femtograys (fGy) to Millirads (mrad) instantly and accurately.
Conversion Formula
mrad = fGy × 1.000000000e-10
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 Millirads
The millirad (mrad) equals 10⁻³ rad = 10⁻⁵ Gy = 10 µGy. Older US health physics reports and NRC licence conditions quote occupational extremity doses in mrad; some film badge dosimetry reports still use mrad for historical continuity. 1 mrad = 10⁻³ rad = 10⁻⁵ Gy = 10 µGy.
Quick Reference Table
| Femtograys (fGy) | Millirads (mrad) |
|---|---|
| 1 fGy | 1 × 10-10 mrad |
| 2 fGy | 2 × 10-10 mrad |
| 5 fGy | 5 × 10-10 mrad |
| 10 fGy | 1 × 10-9 mrad |
| 25 fGy | 2.5 × 10-9 mrad |
| 50 fGy | 5 × 10-9 mrad |
| 100 fGy | 1 × 10-8 mrad |