Sound intensity level (dB)

β = 10 log₁₀(I/I₀), I₀ = 10⁻¹² W/m².

Calculator

Model / formula

β = 10 log₁₀(I / I₀)

I (W/m²)

Result

β = 70.0000 dB (I₀ = 10⁻¹² W/m²)

From I only (see also sound intensity tool).

Educational use only. Check signs, units, and modeling assumptions (e.g. flat Earth g, no air resistance unless stated).