Decibel Addition Calculator

Add decibels correctly, convert ratios to dB, and calculate distance attenuation.

4.8Kuses
7.6/10(41)
Combined Level
81.5 dB
Increase
+1.5 dB
Loudest Source
80 dB
Sources
3

Decibel Math

Decibels are logarithmic. You cannot simply add dB values. Use: Total = 10 * log10(10^(dB1/10) + 10^(dB2/10)). Doubling distance reduces level by ~6 dB.

Disclaimer: This tool is provided as-is for informational and educational purposes only.

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