Distance Attenuation Calculator

Distance Attenuation Calculator CalculatorScale.com

Input Parameters

Instant Real-time Calculation

Initial Sound Level at d1 (SPL1)

Reference Distance (d1)

Target Distance (d2)

Result Physics

Sound Level at Distance d2

-- dB

Export calculation:

Calculation Logic:

The Distance Attenuation Calculator is governed by ΔSPL (dB) = 20 × log10(d2 / d1) | SPL2 = SPL1 - 20 × log10(d2 / d1). It describes the mathematical and physical relationship between the optical or acoustic system parameters.