Measure ambient noise levels in real time using your microphone.
Current Noise
| Decibel | Example |
|---|---|
20 dB | Rustling leaves |
30 dB | Whisper |
40 dB | Library |
50 dB | Quiet office |
60 dB | Normal conversation |
70 dB | Washing machine |
80 dB | Traffic noise |
90 dB | Lawn mower |
100 dB | Concert |
120 dB | Jet takeoff |
※ Measured values may differ from actual decibels depending on your device's microphone. Use as a reference only.
Whether you are checking apartment inter-floor noise, monitoring workplace sound levels, or simply curious about your environment, this online decibel meter provides a quick approximate reading using your device's built-in microphone. No app download required.
Sound intensity is measured in decibels (dB). The decibel scale is logarithmic: every 10 dB increase represents a tenfold increase in sound intensity. Normal conversation is about 60 dB, while a rock concert can reach 100-120 dB.
According to the World Health Organization (WHO) and Korea's National Institute of Environmental Research, continuous exposure to noise above 85 dB can cause permanent hearing damage. At 100 dB, the safe exposure time drops to just 15 minutes per day.
For apartment dwellers in Korea, the recognized standards for inter-floor noise are: direct impact noise should not exceed 43 dB during the day (06:00-22:00) and 38 dB at night (22:00-06:00). Airborne noise limits are 45 dB (day) and 40 dB (night).
Consumer device microphones are designed for voice communication, not precision sound measurement. Results from this tool may differ from a professional sound level meter by 5-15 dB. For legal or professional purposes, always use a calibrated sound level meter.