Radiation Dose
kGytomGy
Convert kilograys (kGy) to milligrays (mGy).
Factor1 kGy = 1000000 mGy
Converter
kGy
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mGy
Rendered to 6 significant figures.
Formula
Formula
mGy = kGy × 1000000
Multiply any value in kilograys by 1000000 to obtain the value in milligrays.
Worked example
Convert 1 kGy to mGy.
- 01Start with 1 kGy.
- 02Multiply by the conversion factor: 1 × 1000000 = 1.00000e+6 mGy.
Result1 kGy = 1.00000e+6 mGy
Conversion table
| kGy | mGy |
|---|---|
| 1 | 1.0000e+6 |
| 2 | 2.0000e+6 |
| 5 | 5.0000e+6 |
| 10 | 1e+7 |
| 20 | 2e+7 |
| 50 | 5e+7 |
| 100 | 1e+8 |
| 200 | 2e+8 |
| 500 | 5e+8 |
| 1000 | 1e+9 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kGy to mGy?
1 kGy equals 1000000 mGy. To convert, multiply the value in kilograys by 1000000.
How do I convert 1 kGy to mGy?
1 kGy = 1.00000e+6 mGy. For any value, multiply by 1000000.
How do I convert mGy back to kGy?
Divide by the same factor — or equivalently, multiply by 1e-6. So 1 mGy = 1e-6 kGy.
When would I need to convert kilogray to milligray?
Radiation absorbed-dose conversions between kGy and mGy 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).