Convert Grays to Kilograys
Convert Grays (Gy) to Kilograys (kGy) instantly and accurately.
Conversion Formula
kGy = Gy × 0.001
About Grays
The gray (Gy) is the SI coherent unit of absorbed radiation dose, defined as 1 joule of energy deposited per kilogram of matter. Named after Harold Gray (British radiobiologist, 1905-1965). Used globally in radiotherapy: curative tumour doses 40-80 Gy fractionated; total body irradiation before bone marrow transplant 12-14 Gy. 1 Gy = 1 J/kg = 100 rad.
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.
Quick Reference Table
| Grays (Gy) | Kilograys (kGy) |
|---|---|
| 1 Gy | 0.001 kGy |
| 2 Gy | 0.002 kGy |
| 5 Gy | 0.005 kGy |
| 10 Gy | 0.01 kGy |
| 25 Gy | 0.025 kGy |
| 50 Gy | 0.05 kGy |
| 100 Gy | 0.1 kGy |