How Well Can Dogs Hear? Amazing Dog Hearing Facts & Research

Have you ever noticed your dog react to a sound long before you hear it? Whether it's the faint jingling of keys, a distant car pulling into the driveway, or a high-pitched squeaky toy, dogs have an extraordinary sense of hearing that far surpasses our own.

But just how good is a dog's hearing? Let's take a look at what science says.

Dogs Can Hear Frequencies Humans Can't

Humans can typically hear sounds ranging from 20 Hz to 20,000 Hz (20 kHz). Dogs, however, can detect much higher frequencies—up to approximately 47,000 to 65,000 Hz (47–65 kHz), depending on the individual dog and testing methods.

This means dogs can hear sounds that are completely inaudible to humans, especially high-pitched noises.

Why Is This Important?

A dog's remarkable hearing evolved from its wild ancestors. Wolves relied on detecting the tiny, high-pitched squeaks of rodents and other small prey, giving them a survival advantage.

Today, this ability helps domestic dogs:

• Hear approaching people or vehicles before we do.
• Detect squeaky toys that mimic prey sounds.
• Respond to whistles designed specifically for canine hearing.
• Alert owners to unusual noises around the home.

What Does the Research Say?

One of the most influential studies on canine hearing was conducted by Henry E. Heffner and published in Behavioral Neuroscience in 1983.

The researchers tested dogs of different sizes to measure their hearing sensitivity across a wide range of sound frequencies. Their findings showed that dogs can detect sounds well into the ultrasonic range—far beyond the upper hearing limit of humans.

Primary Study

Heffner, H. E. (1983). Hearing in Large and Small Dogs: Absolute Thresholds and Size of the Tympanic Membrane. Behavioral Neuroscience, 97(2), 310–318.
DOI: https://doi.org/10.1037/0735-7044.97.2.310

More Recent Research Confirms These Findings

A more recent review published in Veterinary Sciences revisited decades of canine hearing research and cited Heffner's work as a foundational study. The review reports that dogs' hearing extends to approximately 47 kHz, while acknowledging that different studies and individual dogs may demonstrate upper hearing limits approaching 65 kHz.

How Does This Compare to Human Hearing?

Because of this expanded hearing range, dogs often notice sounds long before we do.

Can Dogs Hear Better Than Humans?

Yes—but not in every situation.

Dogs aren't simply hearing louder than we are. Instead, they're especially skilled at detecting high-frequency sounds and can hear many of those sounds even when they're extremely quiet.

This is why your dog may react to:

• A dog whistle.
• A squeaky toy.
• Small animals moving outside.
• A car arriving before anyone else notices.
• Keys jingling from another room.

Final Thoughts

A dog's incredible hearing is one of the many reasons they make such excellent companions, working dogs, and protectors. Their ability to detect high-frequency sounds allows them to perceive parts of the world that humans simply cannot hear.

So the next time your dog suddenly perks up its ears and looks toward something you can't hear, there's a good chance it has detected a sound that's completely outside the range of human hearing.

References

1. Heffner, H. E. (1983). Hearing in Large and Small Dogs: Absolute Thresholds and Size of the Tympanic Membrane. Behavioral Neuroscience, 97(2), 310–318.
   https://doi.org/10.1037/0735-7044.97.2.310
2. Guérineau, C., Broseghini, A., Lõoke, M., Dehesh, G., Mongillo, P., & Marinelli, L. (2024). Determining Hearing Thresholds in Dogs Using the Staircase Method. Veterinary Sciences, 11(2), 67.
   https://doi.org/10.3390/vetsci11020067
3. American Kennel Club. Dogs Don't Have a Sixth Sense, They Just Have Incredible Hearing.
   https://www.akc.org/expert-advice/life-style/sounds-only-dogs-can-hear/