Gray measures radioactivity, absorbed dose, or exposure. Radiation units describe decay rates, ionizing energy, and biological dose effects.
Gray to Rem
Apply the 1 Gy = 100 rem approximation when working with gamma/beta dose equivalents.
Quick conversion chart
Gray to Rem conversions for reference values.
Converting 0.1 Gray into Rem equals 10 Rem.
Converting 0.5 Gray into Rem equals 50 Rem.
Converting 1 Gray into Rem equals 100 Rem.
Converting 2 Gray into Rem equals 200 Rem.
Converting 5 Gray into Rem equals 500 Rem.
Converting 10 Gray into Rem equals 1000 Rem.
Converting 20 Gray into Rem equals 2000 Rem.
Converting 50 Gray into Rem equals 5000 Rem.
Converting 100 Gray into Rem equals 10000 Rem.
How to convert Gray to Rem
1 Gray = 100 Rem
1 Rem = 0.01 Gray
Example: convert 15 Gray to Rem
15 x 100 = 1500 Rem
Unit definitions
Rem measures radioactivity, absorbed dose, or exposure. Radiation units describe decay rates, ionizing energy, and biological dose effects.
How to convert Gray to Rem
The conversion between gray and rem uses a fixed multiplication factor. One gray equals 100 rem.
To convert, multiply the value in gray by 100. To convert in the opposite direction, divide by 100.