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How loud is a hospital ward?

50–60dBAat the bedside / on the unit

Hospital wards typically average 50 to 60 dB(A), according to a noise survey of Johns Hopkins Hospital, and a 2025 study of 270 surgical patients found a median bedside level of 52.1 dB(A) over 24 hours. The WHO recommends patient rooms stay below 35 dB(A) by day and 30 dB(A) at night.

Level
50–60 dBAA-weighted sound level
Daily limit
No daily limitNIOSH, at the loud end
Versus conversation
1/5.6 energyabout 1.7× quieter

What the numbers mean

How it was measured. Equivalent sound levels (Leq) across units of Johns Hopkins Hospital over 1 min to 24 h (50 to 60 dB(A)); 24-h bedside LAeq on Chinese surgical wards (median 52.1 dB(A)). WHO guidance is below 35 dB(A) by day and 30 dB(A) at night.

Busch-Vishniac and colleagues (Journal of the Acoustical Society of America, 2005) measured equivalent sound levels across Johns Hopkins Hospital and found averages in the 50 to 60 dB(A) range whether averaged over a minute, half an hour or 24 hours. No location met WHO guidelines, many units were barely quieter at night, and their review of 45 years of data showed hospital noise rising over time.

A 2025 study in Frontiers in Public Health monitored 24-hour bedside levels for 270 surgical patients aged 60 and over in China and found a median LAeq of 52.1 dB(A). The share of patients rating their health as poor rose from 28% in the quietest quarter to 58% in the noisiest.

Common sources are equipment alarms, staff conversations, trolleys, doors and pagers. Because many of these are sudden, peak levels are much higher than the averages.

Is it safe?

Below 85 dBA, the level NIOSH allows for a full 8-hour day. At this level, sound is not a hearing risk however long it lasts, though it can still disturb sleep or concentration.

Protecting your hearing

Patients can ask for earplugs and an eye mask, and for alarms and doors to be managed at night. Many hospitals now run 'quiet time' schemes.

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).

  • Refrigerator (40–43 dBA): this has about 22× its sound energy and sounds about 2.5× as loud.
  • Open-plan office (49–55 dBA): this has about 2× its sound energy and sounds about 1.2× as loud.
  • Neonatal intensive care unit (55–63 dBA): it has about 2.5× the sound energy of this and sounds about 1.3× as loud.
  • Dishwasher (38–85 dBA): it has about 4.5× the sound energy of this and sounds about 1.6× as loud.
  • Normal conversation (55–70 dBA): conversation has about 5.6× the energy of this.

Questions

How loud should a hospital be?

WHO recommends patient rooms stay below 35 dB(A) during the day and 30 dB(A) at night.

How loud are hospitals actually?

Typically 50 to 60 dB(A) on average, around 20 dB above WHO guidance.

Sources

  1. Noise levels in Johns Hopkins Hospital, Journal of the Acoustical Society of America. Supports: dB_low/dB_high: 50 to 60 dB(A).Average equivalent sound levels are in the 50-60 dB(A) range for 1 min, 1/2, and 24 h averaging time periods.Checked 2026-11-02.
  2. Environmental noise and self-rated health in older surgical patients undergoing general anesthesia: a cross-sectional study, Frontiers in Public Health. Supports: 52.1 dB(A) median bedside.Median LAeq was 52.1 dB(A), well above the WHO daytime limit of 35 dB(A).Checked 2026-11-02.
  3. Environmental noise and self-rated health in older surgical patients undergoing general anesthesia: a cross-sectional study, Frontiers in Public Health. Supports: WHO 35/30 dB(A).The WHO recommends patient-room sound levels below 35 dB(A) during the day and 30 dB(A) at nightChecked 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.