Sound reference chart

Compare your reading against common sound levels from 20 to 140 dB.

A reference of typical decibel levels for everyday sources, transport, construction, entertainment, and the workplace. Use it to interpret what your browser dB meter is showing.

Acoustic Decibel Scale & Sound Exposure Reference Guide
Quick reference

Everyday sounds at a glance

Typical A-weighted levels at the listed distance. Actual values vary by environment, source, and microphone position.

SoundTypical levelDistanceCategory
Threshold of hearing0 dBReference
Rustling leaves20 dB1 mVery quiet
Whisper30 dB1 mVery quiet
Quiet library40 dBQuiet
Quiet bedroom at night30 dBQuiet
Refrigerator hum40 dB1 mQuiet
Rainfall50 dBModerate
Normal conversation60 dB1 mModerate
Office environment60 dBModerate
Washing machine65 dB1 mModerate
Vacuum cleaner70 dB1 mLoud
Passenger car70 dB10 mLoud
TV at normal volume70 dB1 mLoud
Shower70 dBLoud
Dishwasher75 dB1 mLoud
City traffic80 dBinside carLoud
Alarm clock80 dB1 mLoud
Doorbell80 dB1 mLoud
Lawn mower85 dB10 mVery loud (OSHA action level)
Heavy traffic85 dB5 mVery loud
Blender90 dB0.5 mVery loud
Hair dryer90 dB0.5 mVery loud
Subway train95 dB10 mVery loud
Motorcycle95 dB7 mVery loud
Power tools100 dB1 mVery loud
Jackhammer100 dB15 mVery loud
Cordless drill100 dB1 mVery loud
Construction site100–110 dB15 mVery loud
Chainsaw110 dB1 mExtremely loud
Car horn110 dB1 mExtremely loud
Rock concert (loud)110 dBExtremely loud
Power saw115 dB1 mExtremely loud
Ambulance siren120 dB1 mPain threshold
Thunderclap120 dBPain threshold
Jet engine (30 m)140 dB30 mImmediate harm

Values compiled from WHO Environmental Noise Guidelines (2018), NIOSH, OSHA, and published acoustics references. Use as a reference, not as a personal safety limit.

0–30 dB

Very quiet

Threshold of hearing, rustling leaves, whisper at 1 m, quiet bedroom at night. Good for sleep and concentration.

40–60 dB

Quiet to moderate

Library, refrigerator, rainfall, normal conversation at 1 m, office. WHO recommends keeping long-term indoor exposure below about 55 dB.

70–80 dB

Loud

Vacuum cleaner, shower, TV at normal volume, city traffic inside a car, alarm clock. Sustained exposure starts to interfere with concentration.

85–95 dB

Very loud

Lawn mower at 10 m, blender, hair dryer, subway, motorcycle. OSHA's 85 dB TWA workplace action level falls in this range.

100–115 dB

Extremely loud

Power tools, jackhammer, chainsaw, car horn at 1 m, loud rock concert. Prolonged exposure causes hearing damage; hearing protection required.

120+ dB

Pain and immediate harm

Ambulance siren, thunderclap, jet engine at close range. Single short exposures can cause immediate hearing damage.

FAQ

Frequently asked questions about decibel levels

What dB level is considered quiet?

Background levels around 30 dB or below are considered quiet. A quiet bedroom at night sits near 25 to 30 dB, a quiet library near 35 dB, and a soft whisper at 1 meter is about 20 dB.

What dB level is safe for long-term exposure?

WHO environmental noise guidance treats long-term exposure above roughly 55 dB as a potential sleep and health risk. OSHA sets 85 dB TWA as the workplace action level for hearing protection. SOUNDTEST.PRO records are documentation-grade estimates; these are reference numbers, not personal safety limits.

How loud is 70 dB compared to everyday sounds?

70 dB is roughly the noise level of a vacuum cleaner at 1 meter, a passenger car at 10 meters, or a normal conversation at 1 meter. It is loud enough to make sustained conversation harder but not loud enough to cause immediate hearing damage.

What dB level can cause hearing damage?

Short-term exposure above roughly 110 dB can cause immediate hearing damage. Sustained exposure above 85 dB TWA (8-hour average) is the OSHA action level for hearing protection. SOUNDTEST.PRO records are documentation-grade estimates, not certified measurements; consult a hearing specialist for personal risk assessment.

How accurate is this dB reference chart?

The values shown are typical ranges from public sources including WHO Environmental Noise Guidelines, OSHA, NIOSH, and published acoustics references. Actual sound levels vary by distance, environment, and the specific source. Use the chart to interpret what your SOUNDTEST.PRO browser dB meter is reading, not as a substitute for a calibrated Type 1 or Type 2 sound level meter.

Can I use these values to file a noise complaint?

Reference values help you interpret a reading but do not by themselves prove a violation. Local noise ordinances use their own time-of-day and location-specific limits, and formal enforcement usually requires measurements from a certified instrument. Use SOUNDTEST.PRO records as supporting documentation and check your local ordinance before escalating.

SOUNDTEST.PRO is a documentation-grade estimate tool, not a certified sound level meter. Verify any formal claim with calibrated equipment and qualified measurement procedures.

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Measure your own environment

Open the browser dB meter to see your current A-weighted reading, peak, and LAeq in real time. Compare what you see to this reference chart.

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Reference

Sources behind these numbers

The values are typical A-weighted sound pressure levels compiled from WHO Environmental Noise Guidelines for the European Region (2018), NIOSH and OSHA occupational noise publications, and standard acoustics references. Distances are approximate and assume typical indoor or outdoor conditions.