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Common Sound Levels

 

 

 

 

 

Here are some common sounds and their decibel or loudness levels.

Sound Level
(decibels)
Common Sounds
0
bulletReference Level
18
bulletQuiet Whisper 5 feet
30
bulletWhisper
40
bulletAverage Residence
50
bulletRainfall, Quiet Office, Refrigerator
55
bulletAverage Office
60
bulletDishwasher, Conversation
65 -70
bulletAverage intensity level of a Teacher's Voice
55 -75
bulletTypical occupied Classroom Noise Levels
bulletThe Noise Level can be Higher than the Teacher's Voice Level
70
bulletAverage Conversational Speech 5.25 feet
bulletTraffic, Vacuum Cleaner, Restaurant
80
bulletAlarm Clock, Subway, Factory Noise
90
bulletElectric Razor, Lawnmower
92
bulletNoisiest Spot at Niagara Falls
100
bulletGarbage Truck, Chain Saw
bulletStereo System Set Above Halfway Mark
110
bulletRock Concert, Power Saw
120
bulletJet Takeoff, Night Club, Thunder
130
bulletJack Hammer
bulletThreshold of Pain
140
bulletShotgun, Air Raid System
180
bulletRocket Launching Pad

Continued Exposure to Sound Levels louder than 90 decibels
can eventually cause a Hearing Loss.

 

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Copyright 2001 & 2002 Alphanet Systems Inc.
Last modified: September 02, 2002