At what level does sound become painful to most people?

The threshold at which sound becomes uncomfortable or painful to most people is generally around 120-140 decibels (dB). However, this can vary depending on individual hearing sensitivity, the frequency of the sound, and the duration of exposure.

Here are some common sources of sound and their approximate decibel levels:

- Normal conversation: 60-70 dB

- Vacuum cleaner: 70-80 dB

- Busy street traffic: 80-90 dB

- Subway train: 90-100 dB

- Rock concert: 115-120 dB

- Jet engine: 140-150 dB

Prolonged exposure to sounds at or above 85 dB can cause hearing damage over time. As the decibel level increases, so does the risk of hearing loss and the potential for pain or discomfort.

It's important to protect your hearing by limiting your exposure to loud sounds, using ear protection such as earplugs or earmuffs, and allowing your ears to rest periodically from noisy environments.