Milligray to Gray Conversion

Convert between Milligray and Gray quickly and accurately.

mGy
Gy

How to Convert Milligray to Gray

Conversion Formula

1 mGy = 0.001 Gy
1 Gy = 1000 mGy

Example

Convert 15 mGy to Gy:

15 mGy = 15 × 0.001 Gy = 0.015 Gy

Unit Information

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

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

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 to Gray Conversion Table

Milligray [mGy] Gray [Gy]
1 mGy 0.001 Gy
10 mGy 0.01 Gy
25 mGy 0.025 Gy
50 mGy 0.05 Gy
100 mGy 0.1 Gy
0 mGy 0E+0 Gy
-10 mGy -0.01 Gy
-40 mGy -0.04 Gy