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Roentgen (R) to Milliroentgen (mR)
Convert measurements between Roentgen (R) and Milliroentgen (mR).
Common conversions
100R = 100000 mR
500R = 500000 mR
1000R = 1000000 mR
2400R = 2.40e+6 mR
3200R = 3.20e+6 mR
5500R = 5.50e+6 mR
Conversion information
1 Roentgen (R) = 1000 Milliroentgen (mR)
Traditional exposure unit in air, 1 R = 2.58×10⁻⁴ C/kg
Milliroentgen is one thousandth of a roentgen
Frequently Asked Questions
What is a roentgen?
It is a traditional unit of radiation exposure, equal to 2.58×10⁻⁴ C/kg.
Is the roentgen still used?
Although historical, it is still found in literature and older equipment.
What is a milliroentgen?
It is one thousandth of a roentgen, used for measuring low exposures.
What is mR used for?
It is used in dosimeters and low-level environmental radiation measurements.