Decibel Level Calculator
Convert between sound intensity and decibel levels
Common Sound Levels
0 dB - Threshold of hearing
20 dB - Whisper
60 dB - Normal conversation
70 dB - Busy traffic
80 dB - Vacuum cleaner
110 dB - Rock concert
130 dB - Threshold of pain
150 dB - Jet engine (30m)
Formula Used
L = 10 × log₁₀(I / I₀)
Where: L = decibel level, I = intensity, I₀ = reference intensity (10⁻¹² W/m²)