Unit converter

Absorbed Radiation Dose converter

Convert gray, rad, and SI-prefixed absorbed dose units.

Enter a value and choose units. Results update instantly.

1 Gy = 100 rad

All Absorbed dose units

From 1 Gy
UnitValue
Nanogray nGy 999,999,999.9999998808
Microgray μGy 1,000,000
Milligray mGy 1,000
Gray Gy 1
Kilogray kGy 0.001
Rad rad 100
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Common tasks

Gray to RadGy to rad Rad to Grayrad to Gy Milligray to GraymGy to Gy Gray to MilligrayGy to mGy Microgray to MilligrayμGy to mGy Kilogray to GraykGy to Gy

Reference

How absorbed radiation dose conversion works

Absorbed dose is energy deposited per unit mass and is measured in gray. It is not equivalent dose in sievert, which also applies radiation weighting factors.

Values are converted to gray first, then from that reference into the requested unit. Keeping a single documented reference reduces inconsistent pair-by-pair constants.

Accuracy note: This converter is for absorbed dose only; it does not calculate biological equivalent dose.

Unit reference

UnitSymbol1 unit in Gy
NanograynGy0.000000001
MicrograyμGy0.000001
MilligraymGy0.001
GrayGy1
KilograykGy1,000
Radrad0.01

Long-tail directory

Every indexed conversion

Choose a source unit to see all available destinations.

From Nanogray (nGy)
Nanogray to MicrograyNanogray to MilligrayNanogray to GrayNanogray to KilograyNanogray to Rad
From Microgray (μGy)
Microgray to NanograyMicrogray to MilligrayMicrogray to GrayMicrogray to KilograyMicrogray to Rad
From Milligray (mGy)
Milligray to NanograyMilligray to MicrograyMilligray to GrayMilligray to KilograyMilligray to Rad
From Gray (Gy)
Gray to NanograyGray to MicrograyGray to MilligrayGray to KilograyGray to Rad
From Kilogray (kGy)
Kilogray to NanograyKilogray to MicrograyKilogray to MilligrayKilogray to GrayKilogray to Rad
From Rad (rad)
Rad to NanograyRad to MicrograyRad to MilligrayRad to GrayRad to Kilogray

Primary source

Definitions and standards

Conversion constants and definitions for this category are checked against BIPM SI Brochure: gray.

See Methods & sources for rounding rules, exact-value handling, and review policy.

Questions

Absorbed Radiation Dose FAQ

What is the reference unit for absorbed radiation dose conversions?

ConvertWin uses gray (Gy) as the internal reference for this category, then converts to the selected output unit.

How accurate is this absorbed radiation dose converter?

This converter is for absorbed dose only; it does not calculate biological equivalent dose.