Loudness (dB) Level Calculator
Music & AudioCalculate sound pressure level in decibels from sound intensity.
Sound Level
The sound pressure level in decibels, relative to the standard threshold of human hearing.
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Odeh Ahwal0people find this calculator helpful
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Frequently Asked Questions
Why is the decibel scale logarithmic?
Human hearing perceives loudness on a roughly logarithmic scale, and sound intensity varies across an enormous range — the decibel scale compresses this huge range into manageable numbers, with every 10 dB increase representing a tenfold increase in intensity.
What is the reference point for 0 dB?
0 dB represents the standard threshold of human hearing, approximately 10 to the power of negative 12 watts per square meter — sounds below this intensity are generally inaudible to humans.
What decibel level is considered hazardous to hearing?
Prolonged exposure to sounds above 85 dB is generally considered a risk to hearing health, with shorter and shorter safe exposure times as the level increases further.
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