Physics

Decibel Calculator

Convert sound intensity to decibels.

Calculated Output

Sound level (dB) 60

Formula: dB = 10 × log₁₀(I ÷ I₀)

Step-by-Step Breakdown

1. Values used:

2. Sound intensity = 0 W/m²

3. Reference intensity = 0 W/m²

5. Sound level = 60dB

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The math behind it

dB = 10 × log₁₀(intensity ÷ reference). The reference is 10⁻¹² W/m² (threshold of hearing).

10⁻⁶ W/m² → 60 dB.

+10 dB?

A 10× increase in intensity (and roughly twice as loud).