Sound Pressure Level (SPL) Calculator


Use this simple calculator to determine the SPL level of our speakers at a specified distance.

Browse our speaker products here for further information.


Double the distance ≈ 6dB loss in SPL. (Inverse Square Law)

SPL (dB) Enter parameters below to get SPL results
Meters 1 2 4 8 16 32 64 128
Feet 3.3 6.6 13.1 26.2 52.4 105 210 420
dB dB


Result assumes one speaker, on axis (directly in front of the speaker).


To be clearly audible, you should typically be at least 10dB higher than the ambient levels in the table below.

Environment Typical Ambient Noise Level (dB SPL)
Noisy Restaurant 80
Noisy Office 70
Average Office 50
Quiet Library 40
Hearing Threshold 0
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