How loud is a 9mm handgun?
A 9mm handgun is about 160 dB, with a typical range of 157–164 dB. Peak impulse level at the shooter's ear.
That is about 1,024 times as loud to the ear as normal conversation and 1e+10 times the sound energy.
Can it damage your hearing?
Yes, with enough exposure. At 160 dBA, NIOSH recommends a daily limit of less than a second; at the top of the range (164 dB) it is less than a second. Peaks above 140 dB can cause instant damage. Wear earplugs or earmuffs, keep your distance and limit time near the source.
How sound level changes with distance
Decibel figures always depend on distance. For a small source in open air, every doubling of distance lowers the level by about 6 dB; indoors, reflections reduce that drop. Use the sound-vs-distance calculator to estimate the level where you are.
Sounds as loud as a 9mm handgun
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Frequently asked questions
How many decibels is a 9mm handgun?
About 160 dB, with a typical range of 157–164 dB.
Is a 9mm handgun louder than a jet engine?
Yes – a jet engine at takeoff is about 140 dB at 30 m, while a 9mm handgun is about 160 dB.
How are these levels measured?
With a sound level meter, usually A-weighted (dBA) to match human hearing. Published figures depend on distance and conditions, so treat them as typical values.