Radiology & Specialty

Absorbed Dose Converter

Radiation energy absorbed per kilogram: gray, rad and their multiples. For sieverts and rem, use Equivalent Dose.

From

To

1 Gray = 100 Rads

Formula: multiply the absorbed dose value by 100

Decimals

1 Gy in every absorbed dose unit

Tap a row to convert to that unit.

How to convert absorbed dose units

Radiation energy absorbed per kilogram: gray, rad and their multiples. For sieverts and rem, use Equivalent Dose. Every conversion goes through one base unit, the gray, using exact factors, so results don’t drift.

Grays to rads (Gy to rad)

To convert grays to rads, multiply by 100. 1 gray = 100 rads.

Gy	rad
1 Gy	100 rad
2 Gy	200 rad
5 Gy	500 rad
10 Gy	1,000 rad
20 Gy	2,000 rad
50 Gy	5,000 rad
100 Gy	10,000 rad

Rads to grays (rad to Gy)

To convert rads to grays, divide by 100. 1 rad = 0.01 grays.

rad	Gy
1 rad	0.01 Gy
2 rad	0.02 Gy
5 rad	0.05 Gy
10 rad	0.1 Gy
20 rad	0.2 Gy
50 rad	0.5 Gy
100 rad	1 Gy

Centigrays to rads (cGy to rad)

To convert centigrays to rads, multiply by 1. 1 centigray = 1 rad.

Milligrays to millirads (mGy to mrad)

To convert milligrays to millirads, multiply by 100. 1 milligray = 100 millirads.