Radiation - Exposure conversion
1 coulomb/kilogram (C/kg) equals 3,875.968992248062 roentgen (R). Enter any value below to convert from C/kg to R.
Enter a value and choose units. Results update instantly.
1 C/kg = 3,875.9689922481 R
| Unit | Value |
|---|---|
| Coulomb/kilogram C/kg | 1 |
| Millicoulomb/kilogram mC/kg | 1,000 |
| Microcoulomb/kilogram µC/kg | 1,000,000 |
| Roentgen R | 3,875.9689922481 |
| Milliroentgen mR | 3,875,968.992248062 |
| Microroentgen µR | 3,875,968,992.2480621338 |
| Parker parker | 3,875.9689922481 |
| Rep rep | 3,875.9689922481 |
| Sievert Sv | 1 |
| Millisievert mSv | 1,000 |
| Microsievert µSv | 1,000,000 |
| Rem rem | 100 |
| Millirem mrem | 100,000 |
Formula
Use this relationship for a direct conversion:
2 C/kg = 7,751.9379844961 R.
SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.
Quick reference
| Coulomb/kilogram (C/kg) | Roentgen (R) |
|---|---|
| 0.01 | 38.7596899225 |
| 0.1 | 387.5968992248 |
| 1 | 3,875.9689922481 |
| 2 | 7,751.9379844961 |
| 5 | 19,379.8449612403 |
| 10 | 38,759.6899224806 |
| 25 | 96,899.2248062016 |
| 50 | 193,798.4496124031 |
| 100 | 387,596.8992248062 |
| 1,000 | 3,875,968.992248062 |
From unit
Coulomb/kilogram (C/kg) is the base unit of Radiation - Exposure in the International System of Units (SI).
Symbol: C/kg
To unit
Roentgen (R) is a unit of Radiation - Exposure. 1 R = 0.000258 C/kg
Symbol: R
Keep converting
Source
The SI framework is checked against NIST Guide for the Use of the International System of Units; conventional factors come from the extended factor inventory. Calculations use full internal precision before display rounding.
View the complete radiation - exposure converterQuestions
Use the formula R = C/kg x 3,875.968992248062. 1 coulomb/kilogram (C/kg) equals 3,875.968992248062 roentgen (R).
SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.
