SPL & Coverage Calculator

Date Posted 08/12/2025

Toolbox Audio SPL & Coverage Calculator
SPL & Coverage Calculator

Enter loudspeaker sensitivity, amplifier power and listener distance to estimate sound pressure level (SPL). Assumes free-field conditions.

SPL at 1m (1 speaker): dB
SPL at (1 speaker): dB
SPL at ( speakers): dB

Uses: SPL1m=Sensitivity+10·log₁₀(Power), distance loss=20·log₁₀(d), array gain=10·log₁₀(N). Real-world rooms, coupling and processing will change the actual result.

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