How Loud Is a Decibel? Everyday Sound Comparisons
A single decibel is the smallest change in loudness most people can just barely notice. It only makes sense in comparison — so here is the everyday scale.
Key points
- 0 dB is the threshold of human hearing, not silence.
- 10 dB: breathing. 30 dB: a whisper. 60 dB: normal conversation.
- 85 dB: heavy traffic. 100 dB: a motorcycle. 110 dB: a rock concert.
- 120 dB: a thunderclap or siren — the pain threshold.
- 140 dB and above: fireworks, jets and gunshots — instant-damage risk.
FAQ
How loud is 1 decibel?
About the smallest difference in volume a person can detect. Sounds are best understood by comparison — a whisper is 30 dB, a conversation 60 dB.
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