Convert Grays to Kilorads
Convert Grays (Gy) to Kilorads (krad) instantly and accurately.
Conversion Formula
krad = Gy × 0.1
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 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
| Grays (Gy) | Kilorads (krad) |
|---|---|
| 1 Gy | 0.1 krad |
| 2 Gy | 0.2 krad |
| 5 Gy | 0.5 krad |
| 10 Gy | 1 krad |
| 25 Gy | 2.5 krad |
| 50 Gy | 5 krad |
| 100 Gy | 10 krad |