Sound Level Converter
Convert decibels, dB(A), dB(C) & other sound units
Sound Level Reference
Common Sound Levels:
Whisper
30 dB
Normal conversation
60 dB
Vacuum cleaner
70 dB
City traffic
85 dB
Rock concert
110 dB
Jet engine
140 dB
Safety Guidelines:
Safe (0-70 dB)
No hearing damage risk
Caution (70-85 dB)
Prolonged exposure may cause damage
Dangerous (85+ dB)
Hearing protection required
Decibel Formula:
dB = 10 × log₁₀(P/P₀)
Where P is sound pressure, P₀ is reference pressure (20 μPa)
Where P is sound pressure, P₀ is reference pressure (20 μPa)