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Radiology Converters
Radiation - Exposure Converter
Result
... Roentgen = ... Microcoulomb per kilogram
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Roentgen to Microcoulomb per kilogram Converter
Use this page to convert roentgen values into microcoulomb per kilogram, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 R = 258 µC/kg
1 µC/kg = 0.00387596899224806 R
Example: 0.001 R = 0.258 µC/kg
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Roentgen
Defined as the amount of radiation that produces one esu of charge in one cubic centimeter of dry air at STP.
History: Named after Wilhelm Röntgen, the discoverer of X-rays. Established in 1928.
Current use: Largely replaced by C/kg, but still found in older equipment and historical data.
Also written as R.
Microcoulomb per kilogram
One microcoulomb per kilogram is equal to one millionth of a coulomb per kilogram (1.0E-6 C/kg).
History: Standard metric prefix applied to the SI unit.
Current use: Used for precise measurements of low-level radiation exposure.
Also written as µC/kg.
Roentgen to Microcoulomb per kilogram table
| Roentgen [R] | Microcoulomb per kilogram [µC/kg] |
|---|---|
| 0.01 R | 2.58 µC/kg |
| 0.1 R | 25.8 µC/kg |
| 1 R | 258 µC/kg |
| 2 R | 516 µC/kg |
| 5 R | 1,290 µC/kg |
| 10 R | 2,580 µC/kg |
| 20 R | 5,160 µC/kg |
| 50 R | 12,900 µC/kg |
| 100 R | 25,800 µC/kg |
Frequently asked questions
How many Microcoulomb per kilogram (µC/kg) are in one Roentgen (R)?
One Roentgen equals 258 Microcoulomb per kilogram.
How do you convert Roentgen to Microcoulomb per kilogram?
Multiply the Roentgen value by 258 to get the result in Microcoulomb per kilogram.
How do you convert Microcoulomb per kilogram back to Roentgen?
Multiply the Microcoulomb per kilogram value by 0.00387596899224806 to get back to Roentgen.
What is 0.001 Roentgen in Microcoulomb per kilogram?
0.001 Roentgen equals 0.258 Microcoulomb per kilogram.