Decibel Shield
Decibel chart › Jet engine at takeoff
How loud is a jet engine at takeoff?
A jet engine at takeoff measures 140–150 dB, roughly as loud as firecrackers. At 150 dB it is loud enough to damage hearing almost instantly — there is no safe exposure time at all, so hearing protection is essential. Normal conversation runs about 60 dB for comparison.
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| Decibel level | 140–150 dB |
|---|---|
| Hearing risk | Extreme risk — Immediate injury without hearing protection |
| Safe exposure (NIOSH) | Unsafe at any duration |
| Typical setting | work |
Figures sourced to NIOSH. See the full decibel levels chart for every source.
How a jet engine at takeoff compares
On the decibel scale, 140–150 dB sits above the 85 dB line where sustained exposure damages hearing. Sounds at a similar level:
- Firecrackers 140–150 dB
- Firearm at the shooter's ear 140–165 dB
- Emergency siren 120 dB
- Thunderclap 120 dB
How loud is a jet engine at takeoff?
A jet engine at takeoff measures 140–150 dB, roughly as loud as firecrackers. At 150 dB it is loud enough to damage hearing almost instantly — there is no safe exposure time at all, so hearing protection is essential. Normal conversation runs about 60 dB for comparison.
Is a jet engine at takeoff dangerous to hearing?
Yes — at 150 dB, a jet engine at takeoff can damage hearing almost instantly, with no safe exposure time at all; never expose unprotected ears to it.
Measure it yourself
Decibel levels vary with distance and surroundings. Check the real level where you are with the free online decibel meter — no install, nothing recorded — or see the full decibel levels chart.