Convert Kilograys to Femtograys

Convert Kilograys (kGy) to Femtograys (fGy) instantly and accurately.

Kilograys (kGy)
Femtograys (fGy)

Conversion Formula

fGy = kGy × 1.000000000e+18

About Kilograys

The kilogray (kGy) equals 10³ Gy and is the standard unit for radiation processing. Food irradiation: 1-10 kGy for insect disinfestation and sprout inhibition; medical device sterilisation standard dose is 25 kGy (ISO 11137); polymer crosslinking and cable insulation curing use 50-200 kGy. 1 kGy = 10³ Gy = 10⁵ rad.

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

Kilograys (kGy)Femtograys (fGy)
1 kGy1 × 1018 fGy
2 kGy2 × 1018 fGy
5 kGy5 × 1018 fGy
10 kGy1 × 1019 fGy
25 kGy2.5 × 1019 fGy
50 kGy5 × 1019 fGy
100 kGy1 × 1020 fGy

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