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Roentgen (R) to Coulomb per kilogram (C/kg)
Convert measurements between Roentgen (R) and Coulomb per kilogram (C/kg).
Common conversions
100R = 0.0258 C/kg
500R = 0.129 C/kg
1000R = 0.258 C/kg
2400R = 0.6192 C/kg
3200R = 0.8256 C/kg
5500R = 1.419 C/kg
Conversion information
1 Roentgen (R) = 0.000258 Coulomb per kilogram (C/kg)
Traditional exposure unit in air, 1 R = 2.58×10⁻⁴ C/kg
SI unit of exposure, ionizing charge per mass of air
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 coulomb per kilogram?
It is the SI unit of radiation exposure, measuring the amount of ionizing charge per mass of air.
Where is C/kg used?
Mainly used in medical physics and radiation protection to measure exposure.