As we know One mGy/s is equal to 0.001 Sv/s (1 mGy/s = 0.001 Sv/s).

To convert Milligray/Second to Sievert/Second, multiply your mGy/s figure by 0.001.

Example : convert 25 mGy/s to Sv/s:

25 mGy/s = 25 × 0.001 Sv/s = Sv/s

To convert Sievert/Second to Milligray/Second, divide your Sv/s figure by 0.001.

Example : convert 25 Sv/s to mGy/s:

25 Sv/s = 25 ÷ 0.001 mGy/s = mGy/s