Noise Level Converter
Convert between decibel scales and distances
dB
m
m
Formula
dB₂ = dB₁ - 20log(d₂/d₁)
Sound drops ~6dB per doubling of distance (inverse square law).
Examples
85dB at 1m, 10m away
65 dB at 10m.
Frequently Asked Questions
About Noise Level
Convert between decibel levels at different distances.
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