Decibel Shield
Decibel chart › Jet engine at takeoff
How loud is a jet engine at takeoff?
A jet engine at takeoff measures about 140 dB, roughly as loud as firecrackers. At 140 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.
Last updated:
| Decibel level | 140 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 dB sits above the 85 dB line where sustained exposure damages hearing. Sounds at a similar level:
- Firecrackers 140–150 dB
- Jackhammer 130 dB
- Fireworks show 140–160 dB
- Air horn 129 dB
Everything at this level, with safe exposure times: how loud is 140 dB? →
How loud is a jet engine at takeoff?
A jet engine at takeoff measures about 140 dB, roughly as loud as firecrackers. At 140 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 140 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.
