Converting from Roentgen (R) to Centigray (cGy) | Radiation

What is Roentgen (R)

Roentgen (R) is a unit of measurement for ionizing radiation in the air. It quantifies the amount of ionization produced by X-rays or gamma rays in a specific volume of air.

What is Centigray (cGy)

Centigray (cGy) is a derived unit of absorbed dose of radiation in the International System of Units (SI). It measures the amount of energy deposited by ionizing radiation per unit mass of tissue.

Conversion Formulas

The default conversion formulas between Roentgen (R) and Centigray (cGy) are as follows:

• 1(R)=0.8695652(cGy)

• 1(cGy)=1.15(R)

For other conversions, consider the following examples:

• 3(R)=2.608696(cGy)

• 3(cGy)=3.45(R)

• 13(R)=11.30435(cGy)

• 13(cGy)=14.95(R)

• 9(R)=7.826087(cGy)

• 9(cGy)=10.35(R)

Use these conversion factors to accurately convert between Roentgen (R) and Centigray (cGy) values.