conversion decibel to sound pressure

how to convert decibels(dB) into sound pressure(Pa).
eg 150db means =.......pa[/quote]

how to convert decibels(dB) into sound pressure(Pa).
eg 150db means =.......pa

[/quote]

dB = 20*log(P/Pref) where Pref = 20 µPa

So P = Pref * 10^(dB/20)

for 150 dB. Pa = 20 µPa * 10^7.5 = 632.5 Pa

I hope the person asking this question is doing conversions in AIR...because the conversion for sound underwater uses a
P ref of 1 µPa and not 20µPa. Even physicists seem to miss this important point, so be careful.

how to convert decibels(dB) into sound pressure(Pa).
eg 150db means =.......pa

dB = 20*log(P/Pref) where Pref = 20 µPa

So P = Pref * 10^(dB/20)

for 150 dB. Pa = 20 µPa * 10^7.5 = 632.5 Pa[/quote]