Roentgen to Rep Conversion
Convert between Roentgen and Rep quickly and accurately.
How to Convert Roentgen to Rep
Conversion Formula
Example
Convert 15 R to rep:
Unit Information
Learn about the radiation exposure units you're converting between
Roentgen
R
Definition
A unit of radiation exposure equal to 2.58 × 10^-4 coulomb per kilogram, originally defined as the quantity of X-rays that produces one electrostatic unit of charge in one cubic centimeter of air.
History/Origin
Named after Wilhelm Conrad Röntgen (1845-1923), the German physicist who discovered X-rays in 1895.
Current Use
Still widely used in medical imaging, radiation therapy, and radiation protection, particularly in the United States.
Multiplier
0
Offset
0
Rep
rep
Definition
A unit of radiation exposure equal to 2.58 × 10^-4 coulomb per kilogram, equivalent to one roentgen.
History/Origin
Acronym for "roentgen equivalent physical", used in early radiation dosimetry to describe radiation exposure.
Current Use
Used in historical radiation dosimetry and specialized radiation measurement applications.
Multiplier
0
Offset
0
Roentgen to Rep Conversion Table
| Roentgen [R] | Rep [rep] |
|---|---|
| 1 R | 1 rep |
| 10 R | 10 rep |
| 25 R | 25 rep |
| 50 R | 50 rep |
| 100 R | 100 rep |
| 0 R | 0E+0 rep |
| -10 R | -10 rep |
| -40 R | -40 rep |
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