How many milliroentgen are equivalent to one roentgen (R)?

One roentgen (R) is equivalent to 1000 milliroentgen (mR). This conversion is based on the relationship between the two units in the measurement of radiation exposure. The roentgen is a traditional unit that quantifies exposure to ionizing radiation and is commonly used in radiological practices. Since "milli-" denotes a factor of one thousandth (1/1000), it logically follows that one full roentgen is equal to 1000 milliroentgen. Consequently, when discussing radiation exposure and dosimetry, proper understanding of these units and their conversions is crucial for safety, compliance, and accurate measurement in radiological contexts.