Noise Level Meter
Measure Decibels with Your Phone or PC
Measure ambient noise levels (decibels) in real-time using your phone or PC microphone. Check noise levels for daily sound monitoring. Free, no registration, works entirely in your browser.
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⚠ This tool is not a professional measurement device. Accuracy varies depending on your device's microphone. Use as a reference only.
Noise Level Reference
| dB | Example Environment | Perception |
|---|---|---|
| 20 dB | Rustling leaves, falling snow | Almost silent |
| 30 dB | Quiet suburb at night, whisper | Very quiet |
| 40 dB | Library, quiet residential area | Quiet |
| 50 dB | Quietなオフィス、エアコンの室外機 | Normal level |
| 60 dB | Normal conversation, TV | Normal |
| 70 dB | Vacuum cleaner, busy street | Somewhat noisy |
| 80 dB | Inside train, arcade | Noisy |
| 90 dB | Karaoke, dog barking | 非常にNoisy |
| 100 dB | Under railway, concert venue | Risk of hearing damage |
| 110 dB | Car horn, construction site | Painful |
| 120 dB | Jet takeoff (close range) | Hearing damage danger |