Decibel comparison

How loud is 100 dB?

How loud is 100 dB? Typical sounds at 100 decibels, comparison with other levels, and how long it is safe for your ears. Measure your own level free in the browser – no app needed.

Extremely Loud100-110 dB

100 dB is in the “Extremely Loud” range. Hearing damage after 15 minutes.

Typical sounds around 100 dB

Nightclub
Rock concert
Chainsaw
Jackhammer

100 dB compared with other levels

Decibels are logarithmic: +10 dB is perceived as roughly twice as loud, while +3 dB already doubles the sound energy.

LevelPerceived loudness vs. 100 dBSound energy
90 dB×0.5×0.1
97 dB×0.81×0.5
100 dB×1×1
103 dB×1.2×2
110 dB×2×10

Is 100 dB harmful to hearing?

At 100 dB, the recommended maximum exposure (NIOSH) is about 15 minutes per day without hearing protection. Beyond that, the risk of permanent hearing damage increases.

Guideline values based on NIOSH/WHO recommendations. Actual risk depends on distance, duration, and individual sensitivity. For reference only.

Measure it yourself

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Other decibel levels

See the full decibel comparison chart