Convert Millirad to Kilorad

Enter the number of millirads that you want to convert to kilorads.

1 mrad (millirads) = 1e-6 krad (kilorads)

How to Convert Millirads to Kilorads

The millirad and kilorad are both units of radiation dose. By definition, 1 kilorad equals exactly 1000000 millirads. This means to convert millirads to kilorads, you divide by 1000000.

Formula

kilorads = millirads ÷ 1000000

Step-by-Step Example

Convert 5 mrad to kilorads:

1
Convert 5 mrad to kilorads

We need to convert millirads to kilorads

2
Apply the formula

Since 1 krad = 1000000 mrad, divide by 1000000

5 ÷ 1000000 = 5e-6

Answer

5 mrad = 5e-6 krad

Millirad to Kilorad Conversion Table

Quick reference table for common millirad to kilorad conversions. Click any value for detailed calculation.

Millirads (mrad) Kilorads (krad)
0.1 mrad 1e-7 krad
0.5 mrad 5e-7 krad
1 mrad 1e-6 krad
2 mrad 2e-6 krad
5 mrad 5e-6 krad
10 mrad 1e-5 krad
25 mrad 2.5e-5 krad
50 mrad 5e-5 krad
100 mrad 0.0001 krad

About These Units

Millirad (mrad)

A millirad (mrad) equals 0.001 rad or 10 μGy. Used in medical dosimetry: dental bitewing 0.5-2 mrad, chest X-ray 10-20 mrad. Provides convenient scale for diagnostic imaging dose specifications.

Kilorad (krad)

A kilorad (krad) equals 1,000 rads or 10 grays. Used in electronics radiation hardening: commercial chips fail at 1-10 krad, radiation-hardened: 100+ krad, space-grade: 300+ krad total ionizing dose (TID) tolerance.

Frequently Asked Questions

How do I convert millirads to kilorads?

To convert millirads to kilorads, divide the value by 1000000. For example, 10 mrad = 1e-5 krad.

How many kilorads are in 1 millirad?

1 millirad equals 1e-6 kilorads.

What is the formula for millirads to kilorads?

The formula is: krad = mrad ÷ 1000000.