Radiation Dose
mradtokrad
Convert millirads (mrad) to kilorads (krad).
Factor1 mrad = 1e-6 krad
Converter
mrad
Accepts numbers or expressions, e.g. 150 + 14.7
Result
krad
Rendered to 6 significant figures.
Formula
Formula
krad = mrad × 1e-6
Multiply any value in millirads by 1e-6 to obtain the value in kilorads.
Worked example
Convert 1.00000e+6 mrad to krad.
- 01Start with 1.00000e+6 mrad.
- 02Multiply by the conversion factor: 1.00000e+6 × 1e-6 = 1 krad.
Result1.00000e+6 mrad = 1 krad
Conversion table
| mrad | krad |
|---|---|
| 1 | 1e-6 |
| 2 | 2e-6 |
| 5 | 5e-6 |
| 10 | 1e-5 |
| 20 | 2e-5 |
| 50 | 5e-5 |
| 100 | 0.0001 |
| 200 | 0.0002 |
| 500 | 0.0005 |
| 1000 | 0.001 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mrad to krad?
1 mrad equals 1e-6 krad. To convert, multiply the value in millirads by 1e-6.
How do I convert 1 mrad to krad?
1 mrad = 1e-6 krad. For any value, multiply by 1e-6.
How do I convert krad back to mrad?
Divide by the same factor — or equivalently, multiply by 1000000. So 1 krad = 1.00000e+6 mrad.
When would I need to convert millirad to kilorad?
Radiation absorbed-dose conversions between mrad and krad 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).