Converter group

Radiology Converters

Radiation - Absorbed Dose Converter

Value

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Result

... Megagray = ... Milligray

Result

... Megagray

... Milligray

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Use this page to convert megagray values into milligray, with background details, formulas, a worked example, and a quick conversion table.

1 MGy = 1,000,000,000 mGy

1 mGy = 0.000000001 MGy

Example: 1 MGy = 1,000,000,000 mGy

One megagray is 1,000,000 grays.

History: SI prefix mega- applied to the gray.

Current use: Used in radiation processing for industrial sterilization and materials testing.

Also written as MGy.

One milligray is equal to 0.001 grays.

History: Standard SI prefix applied to the gray.

Current use: Commonly used in diagnostic radiology to express patient doses (e.g., CT scans).

Also written as mGy, milligrays.