Distance Effect Calculator

How to calculate the distance effect?

Distance has a significant impact on measured noise levels. The farther away you are from the source, the lower the noise level.

This little tool lets you calculate the effect of distance.

dB
m
m

Niveau sonore à d2
Perte sonore entre d1 et d2
Décroissance du niveau sonore avec la distance
d1 — point de mesure
d2 — point cible

A point noise source L1 of x dB, measured at a distance d1 of x m, will result in a noise level L2 at a distance d2 of x m.