Decibel Comparison Chart
Approximate reference levels for everyday sounds. Use for context only — your browser reading is an estimate, not a verified instrument measurement.
Last materially reviewed: 2026-09-16
| Level (approx.) | Example |
|---|---|
| 30 dBA | Quiet bedroom at night |
| 40 dBA | Quiet library |
| 50 dBA | Moderate rainfall, quiet office |
| 60 dBA | Normal conversation |
| 70 dBA | Busy traffic at close range |
| 80 dBA | Loud restaurant, alarm clock |
| 90 dBA | Lawn mower, motorcycle |
| 100 dBA | Concert front rows |
| 110 dBA | Rock concert, power tools |
| 120 dBA | Siren at close range |
How to read this table
All examples are approximate: distance, room reflections, duration and weighting change real readings. The decibel scale is logarithmic — 10 dB more means roughly ten times the sound energy. Compare your online decibel meter result only after calibrating your microphone, and match the weighting (usually dBA).
This table is educational context, not medical or regulatory advice. No hearing-safety verdicts are shown on this site because uncalibrated browser readings cannot support them. For protection decisions consult qualified guidance such as CDC/NIOSH and a calibrated meter (accuracy and limitations).