milligray per hour to gray per hour converter

Convert milligray per hour to gray per hour in the Radiation dose rate family. See a sample calculation, unit definitions, and the interactive converter.

Example conversion: 1 mGy-h

0.001 gray per hour

This example is calculated from the same unit registry used by the interactive converter.

Formula and unit definitions

Convert dose per unit time. Absorbed-dose rate and equivalent-dose rate are separated by their quantity type.

target value = source value × source factor ÷ target factor

Source unit: milligray per hour (mGy-h), factor 2.777777778e-07, offset 0.

Target unit: gray per hour (Gy-h), factor 0.0002777777778, offset 0.

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Important note

The calculation is performed locally from the listed unit definitions. Display results are rounded for readability; high-precision and regulated work should use the governing standard and appropriate significant figures.

For high-precision, regulated or safety-critical use, check the underlying standard and its required precision. Historical and approximate units are identified in their names or family descriptions.

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