Decibel comparison

How loud is 120 dB?

How loud is 120 dB? Typical sounds at 120 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.

Dangerous110-130 dB

120 dB is in the “Dangerous” range. Pain threshold; immediate damage possible.

Typical sounds around 120 dB

Ambulance siren
Thunder
Live rock music
Jet plane at 100m

120 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. 120 dBSound energy
110 dB×0.5×0.1
117 dB×0.81×0.5
120 dB×1×1
123 dB×1.2×2
130 dB×2×10

Is 120 dB harmful to hearing?

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