How loud is it, and does it matter?
A free decibel meter that runs in your browser, and plain guides on what the number means for your hearing, your sleep and your neighbors.
Guides
- How loud is too loud? Decibel limits explained
The 85 dB rule, how fast safe time drops, and what WHO says about headphones.
- How to measure noise from neighbors
Measure from your own room, log it, and find the rule that applies where you live.
- How to choose a sound level meter
Class 1 vs Class 2, A and C weighting, and when a phone is enough.
- How loud should headphones be?
The 60/60 rule, safe listening time at each level, and how to check your own volume.
- Are phone decibel meter apps accurate?
What NIOSH testing found, what a phone reading is good for, and when you need a real meter.
- How loud is too loud at night?
WHO night limits, why noise ruins sleep without waking you, and what actually helps.