Convert Femtograys to Kilorads

Convert Femtograys (fGy) to Kilorads (krad) instantly and accurately.

Femtograys (fGy)
Kilorads (krad)

Conversion Formula

krad = fGy × 1.000000000e-16

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 Kilorads

The kilorad (krad) equals 10 Gy. Used in radiation hardness testing of electronics for space and military applications: commercial components typically withstand 0.1-10 krad(Si); military-grade components are specified to 100-1000 krad(Si). Semiconductor device qualification standards (MIL-STD-883, ESCC 22900) quote total ionising dose in krad. 1 krad = 10 Gy.

Quick Reference Table

Femtograys (fGy)Kilorads (krad)
1 fGy1 × 10-16 krad
2 fGy2 × 10-16 krad
5 fGy5 × 10-16 krad
10 fGy1 × 10-15 krad
25 fGy2.5 × 10-15 krad
50 fGy5 × 10-15 krad
100 fGy1 × 10-14 krad

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