How loud is a cinema?
Across a whole film, cinema sound typically averages about 61 to 84 dBA in the seats. In measurements of 17 screenings in London cinemas, the LAeq ranged from 61 to 84 dB, the loudest moments (LAmax) reached 84 to 107 dB, and some peaks went above 140 dB.
- Level
- 61–84 dBAA-weighted sound level
- Daily limit
- No daily limitNIOSH, at the loud end
- Versus conversation
- 10× energyabout 2.0× as loud
What the numbers mean
How it was measured. LAeq over the full length of 17 film screenings in London cinemas, measured by an acoustician as an ordinary cinemagoer; LAmax per film ranged from 84 to 107 dB.
Film soundtracks are mixed for a calibrated playback level, but the average depends heavily on the film. In the London measurements the quietest whole-film LAeq was 61 dB (Cruel Intentions) and the loudest 84 dB (a Star Wars: The Phantom Menace screening and Gladiator). Deep Blue Sea had the highest LAmax at 107 dB.
Gladiator spent the longest above 90 dB LAeq, 12 minutes; most films never exceeded it. Five films had peak values of 120 dB or more.
A larger US study using calibrated smartphones in 10 cinemas found that overall levels did not exceed occupational safety limits, that the action film was significantly louder than the children's film, and that levels fell with distance from the screen.
How long is safe?
Below 85 dBA, the level NIOSH allows for a full 8-hour day.
| Level | NIOSH limit (85 dBA, 3 dB rule) | OSHA limit (90 dBA, 5 dB rule) | UK/EU 80 dB(A) action value reached after | UK/EU 85 dB(A) action value reached after |
|---|---|---|---|---|
| 84 dBA | No limit | No limit | 3 h 11 min | Not reached in 24 h |
Times are for a whole day’s exposure, with the rest of the day quiet. The workplace limits were written for adults at work, not for children. Work out a mixed day with the noise dose calculator.
Children
Action films are louder than children's films, and sitting further back from the screen lowers the level, according to a US cinema study.
Protecting your hearing
Sit further back from the screen and towards the centre. Foam earplugs are useful for loud action films, especially for children or anyone with tinnitus.
Earplug and earmuff ratings (NRR in the US, SNR in the UK and EU) are lab figures; real-world protection is usually lower. How to read the ratings.
Compared with sounds nearby
Using midpoints of each range. Energy multiplies by 10 every 10 dB; perceived loudness roughly doubles (why).
- Snowmobile (65–73 dBA max): this has about 2.2× its sound energy and sounds about 1.3× as loud.
- Alarm clock (60–80 dBA): this has about 1.8× its sound energy and sounds about 1.2× as loud.
- Busy restaurant (65–85 dBA): it has about 1.8× the sound energy of this and sounds about 1.2× as loud.
- City bus (75.3–76 dBA): it has about 2.1× the sound energy of this and sounds about 1.2× as loud.
- Normal conversation (55–70 dBA): this has about 10× its energy and sounds about 2.0× as loud.
Questions
Are cinemas loud enough to damage hearing?
A US study across 10 cinemas found overall levels did not exceed occupational safety limits, though loud moments in action films can pass 100 dB.
Where is the quietest seat?
Further back. Levels decrease with distance from the screen.
Sources
- Noise Levels in Cinemas, New Zealand Acoustics, Vol. 15 No. 2 (Damian Ellerton, Marshall Day Acoustics). Supports: dB_low: LAeq 61 dB.
Cruel Intentions 90 61 84 107 54 S / 100 NIL
Checked 2026-11-02. - Noise Levels in Cinemas, New Zealand Acoustics, Vol. 15 No. 2 (Damian Ellerton, Marshall Day Acoustics). Supports: dB_high: LAeq 84 dB.
Star Wars Episode 1: The Phantom Menace (2) 125 84 97 119 78 L/5 1
Checked 2026-11-02. - Noise Levels in Cinemas, New Zealand Acoustics, Vol. 15 No. 2 (Damian Ellerton, Marshall Day Acoustics). Supports: LAmax 107 dB.
Deep Blue Sea 93 82 107 117 75 M / 25 NIL
Checked 2026-11-02. - Comprehensive measures of sound exposures in cinemas using smart phones, Ear and Hearing (2014). Supports: qualitative: distance and film type.
Sound levels decrease with distance from the screen.
Checked 2026-11-02.
This page is general information, not medical advice. If you have ringing in your ears, muffled hearing or any change in your hearing, see an audiologist or your doctor.