Convert Millirem to Kilorad

Convert millirem to kilorads by entering a value below.

1 mrem (millirem) = 1e-6 krad (kilorads)

How to Convert Millirem to Kilorads

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

Formula

kilorads = millirem ÷ 1000000

Step-by-Step Example

Convert 5 mrem to kilorads:

1
Convert 5 mrem to kilorads

We need to convert millirem to kilorads

2
Apply the formula

Since 1 krad = 1000000 mrem, divide by 1000000

5 ÷ 1000000 = 5e-6

Answer

5 mrem = 5e-6 krad

Millirem to Kilorad Conversion Table

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

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

About These Units

Millirem (mrem)

A millirem (mrem) equals 0.001 rem or 10 μSv. US dosimetry standard: natural background 300-400 mrem/year, occupational limit 5,000 mrem/year, public limit 100 mrem/year above background. Chest X-ray: ~2 mrem.

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 millirem to kilorads?

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

How many kilorads are in 1 millirem?

1 millirem equals 1e-6 kilorads.

What is the formula for millirem to kilorads?

The formula is: krad = mrem ÷ 1000000.