Reference · Sound levels
Decibel chart for everyday sounds: 30 dB to 110 dB examples.
Decibels are easier to understand with examples. A number by itself feels abstract; a number next to a quiet room, conversation, blender, subway, concert, or siren tells you what kind of world you are standing in.
Everyday dB reference
- 30 dB: quiet bedroom or soft library.
- 40 dB: quiet home, refrigerator hum, low background.
- 50–60 dB: normal conversation or office.
- 70 dB: busy street, vacuum distance, loud conversation.
- 80–85 dB: heavy traffic, noisy restaurant, some appliances.
- 90–100 dB: power tools, subway platforms, loud venues.
- 105–110 dB: concerts, clubs, sirens nearby, very loud tools.
Why the same sound can read differently
Distance, walls, microphone position, room reflections, wind, phone case, and whether the sound is steady or spiky can all change the reading. Use the chart for awareness, not certified measurement.
How to measure with Honest Decibel
Hold the phone near where your ears are, avoid covering the microphone, watch the reading for at least 20 seconds, and note whether the source is steady, intermittent, or a one-time spike.
When to use a professional meter
Use certified equipment and qualified professionals for workplace compliance, legal disputes, building-code questions, medical decisions, or any situation where the reading has consequences beyond personal awareness.