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Radiation Exposure Conversion Hub

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1 Coulomb/kilogram = 3875.969 Roentgen
1 C/kg = 3875.96899 R • 1 R = 0.000258 C/kg
Coulomb/kilogram to Roentgen: One Coulomb/kilogram is equal to 3875.96899 Roentgens.
Certified Authority Value
3875.9690
R
Exact: 1 R ≡ 0.000258 C/kg
C/kg
C/kg
Swap to Roentgen to Coulomb/kilogram
Swap to Roentgen to Coulomb/kilogram
R
R 3875.969
Quick Values:

Understanding Radiation Exposure (Roentgens)

Exposure ($X$) quantifies the total electrical charge of ions of one sign produced in a unit mass of dry air by X-rays or gamma radiation. Measured in Coulombs per kilogram (C/kg\text{C}/\text{kg}) in SI and Roentgens (R\text{R}) in historical dosimetry ($1\text{ R} = 2.58 \times 10^{-4}\text{ C}/\text{kg}$).

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