Converting from Roentgen (R) to Gray (Gy) | Radiation

What is Roentgen (R)

Roentgen (R) is a unit of measurement for ionizing radiation that represents the amount of radiation needed to produce a specific amount of ionization in air.

What is Gray (Gy)

Gray (Gy) is the SI unit of absorbed radiation dose, measuring the amount of energy deposited in a substance by radiation. It is named after British physicist Louis Harold Gray.

Conversion Formulas

The default conversion factors are:

• 1(R)=0.008695652(Gy)

• 1(Gy)=115(R)

Additional conversions include:

• 12(R)=0.1043478(Gy)

• 12(Gy)=1380(R)

• 14(R)=0.1217391(Gy)

• 14(Gy)=1610(R)

• 4(R)=0.03478261(Gy)

• 4(Gy)=460(R)

Examples

1. Converting 12 R to Gy:

12(R)×0.008695652=0.1043478(Gy)

2. Converting 4 Gy to R:

4(Gy)×115=460(R)

Use these conversion formulas to accurately convert between Roentgen (R) and Gray (Gy) in radiation measurements.