Gray to Milligray Conversion

Convert between Gray and Milligray quickly and accurately.

Gy
mGy

How to Convert Gray to Milligray

Conversion Formula

1 Gy = 1000 mGy
1 mGy = 0.001 Gy

Example

Convert 15 Gy to mGy:

15 Gy = 15 × 1000 mGy = 15000 mGy

Unit Information

Learn about the radiation absorbed dose units you're converting between

Gray

Gy

Definition

The SI base unit of absorbed radiation dose equal to 100 rad, representing one joule of energy absorbed per kilogram of matter.

History/Origin

Named after Louis Harold Gray (1905-1965), the British physicist who made significant contributions to radiation dosimetry.

Current Use

Widely used in radiation therapy, medical physics, and radiation protection worldwide.

Multiplier

100

Offset

0

Milligray

mGy

Definition

A unit of absorbed radiation dose equal to 10^-3 gray, used for small absorbed dose measurements.

History/Origin

Part of the SI metric system, where milli- is the prefix for 10^-3, used for small quantities.

Current Use

Used in radiation therapy, medical physics, and small-dose radiation applications.

Multiplier

0.1

Offset

0

Gray to Milligray Conversion Table

Gray [Gy] Milligray [mGy]
1 Gy 1000 mGy
10 Gy 10000 mGy
25 Gy 25000 mGy
50 Gy 50000 mGy
100 Gy 100000 mGy
0 Gy 0E+0 mGy
-10 Gy -10000 mGy
-40 Gy -40000 mGy