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Sound Level Converter
dB SPL · dBA · dBC · Bel · Nepers — for audio, hearing protection, noise monitoring
Converted Sound Level
80.00 dBA
80 dB SPL ≈ 80 dBA (at 1 kHz)
🔊 Quiet room
~30 dB
🗣️ Normal conversation
~60 dB
🚗 City traffic
~80 dB
🎸 Rock concert
~110 dB
📊 Sound Level Reference Chart
| Sound Source | dB SPL | Perception | Hearing Risk |
|---|---|---|---|
| 🔇 Threshold of hearing | 0 dB | Barely audible | None |
| 🍃 Whisper / Rustling leaves | 20 dB | Very quiet | None |
| 📚 Library / Quiet office | 40 dB | Quiet | None |
| 🗣️ Normal conversation | 60 dB | Moderate | None |
| 🚗 City traffic / Vacuum | 80 dB | Loud | Possible with prolonged exposure |
| 🏍️ Motorcycle / Lawn mower | 90 dB | Very loud | Risk after 8 hours |
| 🎸 Rock concert / Chainsaw | 100 dB | Extremely loud | Risk after 15 minutes |
| 🚓 Siren / Jackhammer | 110 dB | Painful | Risk after 5 minutes |
| ✈️ Jet takeoff (nearby) | 120 dB | Threshold of pain | Immediate risk |
| 🔫 Gunshot nearby | 130+ dB | Extremely painful | Immediate hearing damage |
📊 Understanding dB Weighting Filters
🔊 dBA (A-weighting)
Most common. Mimics human hearing. Used for noise regulations.
🎵 dBB (B-weighting)
Medium loudness. Less common, mostly historical.
🏭 dBC (C-weighting)
Flat response. Used for peak levels, machinery noise.
📡 dB SPL (Unweighted)
Raw sound pressure level. Scientific measurements.
🛡️ Hearing Protection Guide
👂 Normal conversation: No protection needed
🎧 80-85 dB: Consider earplugs for long exposure
🔇 90-100 dB: Earplugs recommended
🛡️ 100+ dB: Earplugs + earmuffs required
💡 Sound Level Tips
📱 Use 60% volume for safe headphone listening
⏱️ Follow the 60/60 rule: 60% volume for 60 minutes
🎧 Noise-cancelling headphones reduce need for high volume
🛡️ Wear hearing protection at concerts and sporting events
🔊 dB SPL · dBA · dBC · dBB
📊 Bel · Neper conversion
📈 Sound level reference chart
🛡️ Hearing protection guide