How Loud Are Everyday Sounds?
Browse and filter 30+ common sounds by category — with real-world context for each noise level
Have you ever wondered how a vacuum cleaner compares to a motorcycle, or whether your morning alarm clock is louder than city traffic? Most people underestimate how much noise they encounter every day — and which of those sounds can actually damage hearing over time.
This page puts everyday sounds side by side without treating unlike measurements as a loudness ranking or safety assessment. Each linked guide documents its own metric and limitations. You can filter by category to focus on the sounds most relevant to you.
For the technical details behind decibel measurements — including the logarithmic scale, WHO guidelines, and NIOSH exposure limits — see the decibel level chart. For an in-depth explainer, read the complete guide to noise levels.
What Is a Decibel Sound Comparison?
Sound comparison requires matching quantities, weighting, measurement positions and time periods. Sound power, continuous sound pressure, impulsive peaks, SEL and EPNL are not interchangeable. The source-specific guides below keep those distinctions visible.
What Is a Decibel?
A decibel (dB) is a unit used to measure sound intensity. The scale is logarithmic, meaning each increase of 10 dB represents a tenfold increase in sound energy. In practical terms, a 10 dB increase sounds roughly twice as loud to the human ear. There is no fixed upper or lower endpoint for the decibel scale, and a number alone does not establish an injury threshold.
How Loud Are Common Sounds?
How Loud Is Normal Conversation?
Conversation varies with vocal effort, microphone position and background sound. It should not be assigned a universal level or compared to a restaurant without matching measurement conditions.
How Loud Is a Vacuum Cleaner?
Vacuum cleaner declarations may report sound power, which cannot be read as a listening-position sound-pressure level. Read more →
What Noise Level Is Dangerous?
Hearing risk depends on actual personal exposure, not a generic sound label. NIOSH and OSHA criteria are distinct occupational frameworks, not predictions of time until damage. See the decibel level chart for complete OSHA/NIOSH exposure limits.
Compare Sounds Side by Side
| Sound | Documented metric | Exposure assessment | Measurement context |
|---|---|---|---|
| Threshold of hearing | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Breathing | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Rustling leaves | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Whisper | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Quiet library | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Quiet office | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Moderate rainfall | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Dishwasher | Class A below 39; B 39 to below 45; C 45 to below 51; D 51 and above | Not determined from this source | Noise class band definitions for declared airborne acoustical noise emission. Position: Not applicable — sound power is independent of distance. Defines classes only. The regulation does not publish a sound pressure level at any listening position, and no conversion to one is provided. |
| Normal conversation | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Washing machine | Class A below 73; B 73 to below 77; C 77 to below 81; D 81 and above | Not determined from this source | Noise class bands for the spinning phase. Position: Not applicable — sound power. No wash-phase or drainage figure is classed or labelled, and the regulation publishes no sound pressure level at any position. |
| School classroom | 35 dB(A) one-hour average background level for core learning spaces ≤20,000 ft³ | Not determined from this source | Maximum background noise level and reverberation time for core learning spaces. Position: Room criterion, unoccupied. A design criterion for empty rooms; it says nothing about levels during teaching. |
| Vacuum cleaner | No universal level; defines the quantity, the test surface and the labelling obligation | Not determined from this source | Requires the sound power level to be declared on the energy label, in dB re 1 pW, measured on carpet per IEC/EN 60704-2-1. Position: Not applicable — sound power is distance-independent. Legal text: it specifies the measurement and declaration, not the level of any machine. |
| Hair dryer | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Busy street traffic | 80 dB(A) | Not determined from this source | Maximum permitted noise emission for new trucks over 10,000 lb gross vehicle weight rating under a standard acceleration test. Position: 50 feet. A ceiling for one vehicle under a standard test, not a typical pass-by level and not applicable to a traffic stream. |
| Alarm clock | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Dog bark | Reported full-shift A-weighted TWAs spanning roughly the low 80s to about 91 dBA depending on facility and criterion, with one individual result about 100 dBA | Not determined from this source | Full-shift personal noise dosimetry for kennel and shelter workers. Position: Dosimeter microphone worn near the worker's shoulder. Describes worker exposure in specific facilities. It is not a free-field measurement of a single dog and cannot be converted into one. |
| Heavy traffic | 80 dB(A) | Not determined from this source | Maximum permitted noise emission for new trucks over 10,000 lb gross vehicle weight rating under a standard acceleration test. Position: 50 feet. A ceiling for one vehicle under a standard test, not a typical pass-by level and not applicable to a traffic stream. |
| Subway train | Underground platform mean Leq 83.5 ± 4.3 dBA; all platforms 81.1 dBA; loudest platform Leq 90.2 dBA with Lmax 102.1 dBA; platform mean Lmax 90.4 dBA; in-car mean Leq 79.3 dBA; underground car mean Lmax 91.0 ± 3.2 dBA; local station 79.0 vs hub 82.2 dBA | Not determined from this source | 243 personal-dosimetry measurements on platforms and inside vehicles across the NYC transit system. Position: Body-worn dosimeter — no fixed distance from the train. One city, one period, and dosimetry captures the wearer's position rather than a standardised measurement point. Sub-metrics for every location type were not all reported. |
| Lawn mower | Petrol push mowers: LpA 84 dB(A), LWA measured 94 dB(A), guaranteed 96 dB(A). Robotic mowers: LpA 55–70 dB(A), guaranteed LWA 70–74 dB(A) | Not determined from this source | Sound pressure at the operator position and measured/guaranteed sound power for petrol walk-behind and robotic mowers. Position: Operator position for LpA; sound power has no distance. Manufacturer self-declaration for one brand's product lines, not an independent test or a market average. |
| Motorcycle | 78–90 dB(A) at 30 mph (13 m/s); 114–116 dB(A) at 120 mph (54 m/s); 90–109 dB(A) in the wind tunnel at 50–70 mph; with earplugs 74 dB(A) at 22 m/s and 80 dB(A) at 32 m/s; ≈15.5 dB increase per doubling of speed above ≈25 m/s | Not determined from this source | Sound level at the rider's ear on the road and in a wind tunnel, with and without earplugs. Position: At the rider's ear inside the helmet. A 1996 study; helmet aerodynamics have changed since, and ranges reflect different helmets and riding positions rather than one machine. |
| Power drill | DHR171 86/97, DHR243 89/100, DHR242 90/101, DTD157 95/106, HP2050/2051 97/108 dB(A) (operator / sound power), K = 3 dB | Not determined from this source | Sound pressure at the operator position, sound power and declared uncertainty for each tool. Position: Operator position as defined by the standard; the manuals do not state a distance in metres. Manufacturer self-declarations, one brand, with ±3 dB uncertainty; measured under a reference condition that understates real drilling. |
| Leaf blower | No numeric level: establishes the measurement and marking obligation. We did not verify any EU-wide permissible sound power ceiling specific to leaf blowers | Not determined from this source | Defines leaf blowers as equipment requiring a measured and declared A-weighted sound power level using EN ISO 3744 and ISO 11094. Position: Not applicable — sound power is distance-independent; the test uses a hemispherical measurement surface. Legal text: it defines the quantity and the procedure, not the level of any particular machine. We could not confirm whether a numeric limit for this category exists. |
| Jackhammer | 90 dBA at 8 h, 92 at 6, 95 at 4, 97 at 3, 100 at 2, 102 at 1.5, 105 at 1, 110 at 0.5, 115 at 0.25 or less; impulsive noise not above 140 dB peak | Not determined from this source | Permissible noise exposures as duration-level pairs. Position: At the worker. Applies to covered workplaces only. It does not describe individual equipment levels and it is not a hearing-health prognosis. |
| Helicopter | R44 (1,089 kg) overflight SEL 81.9 dB against an 83.4 dB limit; R44 Cadet (998 kg) 78.2 dB against 83.0 dB | Not determined from this source | ICAO Annex 16 Volume I Chapter 11 overflight noise certification. Position: Fixed Annex 16 Chapter 11 overflight measurement geometry. Overflight only; no separate takeoff or approach figure is certified under this chapter, and the value is not a level at a stated observer distance. |
| Rock concert | Ceiling 100 dB LAeq over 15 minutes; safer practice 90–94 dB LAeq; quiet zones below 70 dB. Around one third of monitored concerts exceeded 100 dB LAeq,15min at the front-of-house mixing position | Not determined from this source | Sets maximum and recommended sound levels for entertainment venues, plus quiet-zone requirements; reports monitoring observations. Position: Audience area; the monitoring statistic refers to the mixing position. A standard-setting document rather than a measurement study. The one-third figure summarises monitoring across venues and does not describe any specific event or genre. |
| Baby crying (close) | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Thunder clap | No decibel value published; audible range given as approximately ten miles under typical conditions | Not determined from this source | Audible range of thunder and its use in lightning safety. Position: Range-based rather than level-based. Guidance material rather than a measurement report; the ten-mile figure is an approximation that varies with atmospheric conditions. |
| Ambulance siren | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Jet takeoff (100 m) | Concorde 112.9; Boeing 747-100/JT9D-7F 100.5; 737-200/JT8D-15QN 88.0; A321-211 77.1; 737-800/CFM56-7B24 76.8; A320-214/CFM56-5B4 73.3 dBA | Not determined from this source | Estimated maximum A-weighted sound level at the FAR Part 36 Appendix C takeoff noise certification measurement point, per aircraft and engine variant. Position: Fixed FAR Part 36 Appendix C flyover measurement geometry; not a stated distance from a listener. Certification-procedure single-event levels at a defined reference point. They cannot be read as the level a bystander experiences at any particular distance, and variants certified under different procedures are not directly comparable. |
| Fireworks | No source-qualified numeric level established here | Not determined from this source | A reference measurement, metric and position are needed. |
| Gunshot | Peak levels at the shooter's left ear 145–173 dB, with the majority above 159 dB | Not determined from this source | 54 small-calibre firearms fired outdoors with an 18-microphone radial array extending to 6 m. Position: Shooter's left ear plus an array out to 6 m. Small and medium calibre civilian firearms at a single outdoor site. The full numeric table is paywalled, so per-firearm values are not quoted. |
Explore by Category
When Does Noise Become Dangerous?
Noise-induced hearing risk depends on level, duration, repeated exposure and the measurement metric. An occupational criterion is not a guarantee that a particular concert or traffic exposure is safe.
Needing to raise your voice can be a practical warning sign, but it is not a calibrated sound-level measurement. Reduce exposure or seek a suitable assessment when noise is concerning.
For detailed OSHA/NIOSH exposure time limits and WHO recommended noise levels, see the decibel level chart. You can also measure your environment for a local estimate, not a certified exposure assessment.
Curious How Loud Your Environment Is?
Use Snap Decibel Meter to estimate sound levels instantly using your phone microphone — free, private, and no download required.
Start MeasuringFrequently Asked Questions
What is considered a loud noise level?
Perceived loudness and hearing risk are different. Personal exposure needs a measured sound-pressure metric, averaging period and duration; sound power or a certification figure cannot substitute for it.
How loud is a normal conversation?
Voice level varies with vocal effort and distance. Without a reference measurement and position, this page does not assign a universal number.
What noise level causes hearing damage?
There is no universal damage threshold or countdown. NIOSH uses 85 dBA over eight hours with a 3 dB exchange rate as an occupational recommendation; OSHA uses a different regulatory framework. Neither guarantees individual safety.
How loud is a vacuum cleaner?
The EU declaration is sound power, not the sound pressure at your ear. The linked guide explains the source metric and conditions.
Is 50 dB loud?
Interpret a sound-pressure level only with its weighting, averaging period and listening context. The number alone cannot establish comfort or hearing safety.