Radiation Absorbed Dose Converter

Convert absorbed radiation dose between gray, rad, milligray, centigray, and microgray for educational reference.

Convert instantly

Enter a value and choose the units. Your answer updates as you type.

Value

From

Result

1000 Milligray (mGy)

Educational reference only—not clinical or medical dosing advice. Dose decisions require a qualified radiation professional. Source: https://remm.hhs.gov/radmeasurement.htm

Quick reference

Gray (Gy)1 base units
Milligray (mGy)0.001 base units
Centigray (cGy)0.01 base units
Microgray (µGy)0.000001 base units
Rad (rad)0.01 base units

About the Radiation Absorbed Dose Converter

Absorbed dose is energy deposited per kilogram of material, with gray as the SI unit. Rad is the legacy equivalent scale; absorbed dose is different from weighted dose equivalent in sieverts. This page retains the standard SI relationship while keeping customary and legacy units explicit, which is important when a specification crosses disciplines.

Enter a value to see the conversion immediately—for example, 1 gray equals exactly 100 rad, while 1 rad equals 0.01 gray. For a related check, use the Radiation Dose Equivalent Converter and Radiation Exposure Converter; those tools describe a different but commonly connected quantity.

Frequently asked questions

What does the radiation absorbed dose measure?

Absorbed dose is energy deposited per kilogram of material, with gray as the SI unit. Rad is the legacy equivalent scale; absorbed dose is different from weighted dose equivalent in sieverts.

What is a useful reference conversion for radiation absorbed dose?

1 gray equals exactly 100 rad, while 1 rad equals 0.01 gray.

Are the factors on this page exact?

SI prefixes and internationally defined units use their standard factors. Legacy and customary factors are retained at their published scientific definitions and may be rounded only for display.

Take this calculation further

Browse the converters calculators collection for more tools in this subject.

For a related calculation, use Magnetomotive Force Converter to convert magnetomotive force between ampere-turns, ampere, and gilberts using standard magnetic circuit factors. Alternatively, use Radiation Exposure Converter to convert radiation exposure between coulomb per kilogram, roentgen, milliroentgen, and microcoulomb per kilogram.

For the underlying method, read A Quick Guide to Radiation Units for Students.