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Very loud · Sound level

How loud is 90 dB?

90 dB is very loud – sounds about 8.0 times as loud as normal conversation.

90 dB
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Listen: sounds near 90 dB

Self Driving Ice Cream Truck (Antti Luode)
4:28CC BY 3.0by Antti LuodeWikimedia Commons
4:28
Dog barking
0:41CC BY-SA 4.0by User:Dr. Nono YesMaybeWikimedia Commons
0:41
0.6325 PaSound pressure
0.001 W/m²Intensity
×8.00Perceived vs. 60 dB talk
2.5 hoursNIOSH daily limit

How loud is 90 dB?

90 decibels is very loud. 90 dB sounds about 8.0 times as loud as normal conversation (60 dB), and it carries 1e+03 times the sound energy. Typical sounds around this level: diesel truck, dog barking, jet hand dryer.

Decibels are logarithmic: every +10 dB means ten times more sound intensity but is heard as only about twice as loud, and every +6 dB doubles the sound pressure. That is why a few decibels can make a big difference.

Is 90 dB dangerous?

Yes, with enough exposure. NIOSH recommends no more than 2.5 hours per day at 90 dBA (US law, via OSHA, allows 8.0 hours). Hearing damage from noise is cumulative and permanent, so use earplugs or earmuffs, increase distance or reduce exposure time.

Sounds around 90 dB

90 dBDiesel truck
At about 15 m.90 dBDog barking
Large breeds barking at close range can exceed 100 dB.90 dBJet hand dryer
A 2019 study measured up to 110 dB at a child's ear height.90 dBLarge waterfall
Standing near the plunge pool of a big fall.90 dBLeaf blower
Backpack gas blowers are the loudest; battery models are quieter.90 dBPassing freight train
At about 15 m from the track.90 dBPiano (played loudly)
Fortissimo chords near the instrument.90 dBViolin (at the player's ear)
Violinists' left ears receive more sound than the audience.

Safe listening time

LevelNIOSH recommended limitOSHA legal limit (US)
84 dBA10.1 hours18.4 hours
87 dBA5.0 hours12.1 hours
90 dBA2.5 hours8.0 hours
93 dBA1.3 hours5.3 hours
96 dBA38 minutes3.5 hours

NIOSH: 85 dBA for 8 hours with a 3 dB exchange rate; OSHA: 90 dBA for 8 hours with a 5 dB exchange rate. General information, not medical advice – see a hearing professional about ringing ears, muffled hearing or pain.

Frequently asked questions

Is 90 dB loud?

90 dB is very loud. For comparison: diesel truck, dog barking, jet hand dryer.

How many times louder is 90 dB than 80 dB?

A 10 dB increase means ten times the sound intensity and is heard as roughly twice as loud.

How long can you listen to 90 dB?

NIOSH recommends a maximum of 2.5 hours per day at 90 dBA.