Convert Kilorads to Femtograys

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

Kilorads (krad)
Femtograys (fGy)

Conversion Formula

fGy = krad × 1.000000000e+16

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.

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.

Quick Reference Table

Kilorads (krad)Femtograys (fGy)
1 krad1 × 1016 fGy
2 krad2 × 1016 fGy
5 krad5 × 1016 fGy
10 krad1 × 1017 fGy
25 krad2.5 × 1017 fGy
50 krad5 × 1017 fGy
100 krad1 × 1018 fGy

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