Convert Nanograys to Millirads

Convert Nanograys (nGy) to Millirads (mrad) instantly and accurately.

Nanograys (nGy)
Millirads (mrad)

Conversion Formula

mrad = nGy × 0.0001

About Nanograys

The nanogray (nGy) equals 10⁻⁹ Gy. Background cosmic-ray dose rate at sea level is ~0.03-0.05 nGy/s; environmental low-dose-rate studies of DNA damage in cultured cells use nGy doses delivered over days; regulatory derived investigation levels for some radionuclides in food correspond to organ doses in nGy. 1 nGy = 10⁻⁹ Gy = 10⁻³ µGy.

About Millirads

The millirad (mrad) equals 10⁻³ rad = 10⁻⁵ Gy = 10 µGy. Older US health physics reports and NRC licence conditions quote occupational extremity doses in mrad; some film badge dosimetry reports still use mrad for historical continuity. 1 mrad = 10⁻³ rad = 10⁻⁵ Gy = 10 µGy.

Quick Reference Table

Nanograys (nGy)Millirads (mrad)
1 nGy0.0001 mrad
2 nGy0.0002 mrad
5 nGy0.0005 mrad
10 nGy0.001 mrad
25 nGy0.0025 mrad
50 nGy0.005 mrad
100 nGy0.01 mrad

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