kg
m/s
kg-m/s

Formula

Sound Pressure Level:
SPL = 20log10 (P/Pref)

Sound Pressure:
P = Pref * 10 SPL/20

Reference Pressure:
Pref = P / 10 SPL/20

Where,
SPL = Sound Pressure Level,
P = Sound Pressure,
Pref = Reference Pressure.