What is the upper limit of hearing for a child in Hertz?

The upper limit of hearing for a typical child is around 20,000 Hertz. This range can vary slightly among individuals, but generally, it is accepted that humans, especially children with healthy hearing, can hear sounds in the frequency range from about 20 Hertz to 20,000 Hertz. Frequencies higher than this, up to 30,000 Hertz or even 40,000 Hertz, may be detectable by some animals but are not within the audible range for humans.

Therefore, while younger individuals may have a more acute sense of hearing, 20,000 Hertz is the standard upper threshold recognized for human hearing, particularly in children. Understanding this limit is important in contexts ranging from audiology to sound design, among other fields.