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Radiation Exposure Converter

Convert exposure — coulombs per kilogram and roentgens.

Result

0.258mC/kg

1 Roentgen = 0.258 Millicoulomb per kilogram

1 R in every unit
Coulomb per kilogram0.000258 C/kg
Millicoulomb per kilogram0.258 mC/kg
Microcoulomb per kilogram258 µC/kg
Roentgen1 R
Milliroentgen1,000 mR
Microroentgen1,000,000 µR

Show the work

  1. Find the conversion factor from Roentgen to Millicoulomb per kilogram

    1 R = 0.000258 C/kg · 1 mC/kg = 0.001 C/kg

    factor = 0.000258 ÷ 0.001 = 0.258 mC/kg per R

  2. Multiply by the factor: R cancels, leaving mC/kg

    mC/kg = R × (mC/kg per R)

    1 R × 0.258 mC/kg per R = 0.258 mC/kg

How it works

1 R = 0.258 mC/kg, so mC/kg = R × 0.258

Roentgen to Millicoulomb per kilogram table

RoentgenMillicoulomb per kilogram
1 R0.258 mC/kg
2 R0.516 mC/kg
5 R1.29 mC/kg
10 R2.58 mC/kg
20 R5.16 mC/kg
50 R12.9 mC/kg
100 R25.8 mC/kg
1,000 R258 mC/kg

Questions

How do I convert roentgen to millicoulomb per kilogram?
Multiply by 0.258. For example, 10 R = 2.58 mC/kg.
Which units does the radiation exposure converter support?
Coulomb per kilogram (C/kg), Millicoulomb per kilogram (mC/kg), Microcoulomb per kilogram (µC/kg), Roentgen (R), Milliroentgen (mR), Microroentgen (µR).

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