Convert Microroentgen to Milliroentgen

Input the number of microroentgens you want to convert to milliroentgens.

1 μR (microroentgens) = 0.001 mR (milliroentgens)

How to Convert Microroentgens to Milliroentgens

The microroentgen and milliroentgen are both units of radiation dose. By definition, 1 milliroentgen equals exactly 1000 microroentgens. This means to convert microroentgens to milliroentgens, you divide by 1000.

Formula

milliroentgens = microroentgens ÷ 1000

Step-by-Step Example

Convert 5 μR to milliroentgens:

1
Convert 5 μR to milliroentgens

We need to convert microroentgens to milliroentgens

2
Apply the formula

Since 1 mR = 1000 μR, divide by 1000

5 ÷ 1000 = 0.005

Answer

5 μR = 0.005 mR

Microroentgen to Milliroentgen Conversion Table

Quick reference table for common microroentgen to milliroentgen conversions. Click any value for detailed calculation.

Microroentgens (μR) Milliroentgens (mR)
0.1 μR 0.0001 mR
0.5 μR 0.0005 mR
1 μR 0.001 mR
2 μR 0.002 mR
5 μR 0.005 mR
10 μR 0.01 mR
25 μR 0.025 mR
50 μR 0.05 mR
100 μR 0.1 mR

About These Units

Microroentgen (μR)

A microroentgen (μR) equals 0.001 mR. Used in environmental radiation monitoring, radon measurements, and low-level contamination surveys. Natural background: 10-20 μR/h typical. Sensitive ion chambers measure in μR/h.

Milliroentgen (mR)

A milliroentgen (mR) equals 0.001 roentgen. Radiation survey meters often display mR/h for monitoring X-ray and gamma fields. Natural background: 10-20 mR/year. Typical survey meter range: 0-1000 mR/h.

Frequently Asked Questions

How do I convert microroentgens to milliroentgens?

To convert microroentgens to milliroentgens, divide the value by 1000. For example, 10 μR = 0.01 mR.

How many milliroentgens are in 1 microroentgen?

1 microroentgen equals 0.001 milliroentgens.

What is the formula for microroentgens to milliroentgens?

The formula is: mR = μR ÷ 1000.