Radiation Dose
kGytorad
Convert kilograys (kGy) to rad (radiation absorbed dose) (rad).
Factor1 kGy = 100000 rad
Converter
kGy
Accepts numbers or expressions, e.g. 150 + 14.7
Result
rad
Rendered to 6 significant figures.
Formula
Formula
rad = kGy × 100000
Multiply any value in kilograys by 100000 to obtain the value in rad (radiation absorbed dose).
Worked example
Convert 1 kGy to rad.
- 01Start with 1 kGy.
- 02Multiply by the conversion factor: 1 × 100000 = 100000 rad.
Result1 kGy = 100000 rad
Conversion table
| kGy | rad |
|---|---|
| 1 | 1.0000e+5 |
| 2 | 2.0000e+5 |
| 5 | 5.0000e+5 |
| 10 | 1.0000e+6 |
| 20 | 2.0000e+6 |
| 50 | 5.0000e+6 |
| 100 | 1e+7 |
| 200 | 2e+7 |
| 500 | 5e+7 |
| 1000 | 1e+8 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kGy to rad?
1 kGy equals 100000 rad. To convert, multiply the value in kilograys by 100000.
How do I convert 1 kGy to rad?
1 kGy = 100000 rad. For any value, multiply by 100000.
How do I convert rad back to kGy?
Divide by the same factor — or equivalently, multiply by 1e-5. So 1 rad = 1e-5 kGy.
When would I need to convert kilogray to rad (radiation absorbed dose)?
Radiation absorbed-dose conversions between kGy and rad are used in radiological protection, medical physics, and nuclear-industry health physics. Gray (Gy) is the SI standard; rad remains common in older US health-physics documentation (1 Gy = 100 rad).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).