Dogs can hear quieter sounds than we can

Scientists measure hearing sensitivity by finding the quietest sound a listener can detect at each pitch. For people with healthy hearing, the quietest sounds we can pick up sit at around 0 decibels (dB), in the middle of our range.

In a well-known study of four dogs, researcher Henry Heffner found that dogs heard best at around 4–8 kHz, with the most sensitive dogs detecting tones as quiet as about -5 dB. ^{[1] [2]} Because decibels are a logarithmic scale, a negative figure means a very soft sound indeed: quieter than the quietest sound most humans can hear.

It is worth keeping this in perspective. Across their middle range, dogs are only slightly more sensitive than people. ^[1] The bigger difference shows up with high-pitched sounds, where human hearing starts to fade and dogs keep going.

What that means for distance

Sound gets quieter as it travels. If a dog can detect a fainter version of a sound, they can also detect it from further away. For mid-pitched sounds the advantage is modest, but for high-pitched sounds, such as the whistle of a rocket, a dog may pick them up from up to around four times farther away than you can.

Being able to hear fainter sounds is not the same as hearing everything louder. A firework that is already loud to you is not magically amplified for your dog. What changes is how early, how far away and how often they notice the noises around them.

Sounds you will never hear

Pitch is measured in hertz (Hz). Human hearing is generally quoted as reaching up to about 20,000 Hz (20 kHz) in young people, and most of us lose some of that upper range as we get older.

Dogs go much higher. In Heffner's study, dogs heard tones up to around 45–47 kHz, more than twice the upper limit of human hearing. ^{[2] [3]}

Fireworks are not just a single bang. Whistles, screeches and crackles all add higher-pitched layers to the sound. Some of what your dog hears during a display may sit at pitches you cannot hear at all, so a noise that seems to have finished for you may still be going for them.

Ears that move like satellite dishes

Watch a dog when something catches their attention and you will often see their ears move first. Dogs have around 18 muscles controlling each ear, allowing them to lift, tilt and rotate their ears towards a sound. ^[4]

Humans have three muscles that move the outer ear, and for most of us they barely work. Only a minority of people can wiggle their ears at all. ^{[4] [5]}

Interestingly, this does not make dogs better than us at pinpointing exactly where a sound came from. In laboratory tests, dogs distinguish between sound sources roughly 4–8 degrees apart on average, while humans can manage around 1–2 degrees. ^{[6] [7]}

What dogs do have is the ability to swivel their ears to scan their surroundings and focus on a noise. During fireworks, bangs can echo around buildings and arrive from different directions, which may leave a dog repeatedly turning towards sounds they cannot make sense of.

What this means on Bonfire Night

Put these together and it becomes easier to see why fireworks season can be so overwhelming:

• They notice more of it. Distant displays you cannot hear may still reach your dog.
• They hear extra layers. High-pitched whistles and crackles can add sounds you are not aware of.
• It is unpredictable. Bangs arrive suddenly, at different volumes and from different directions.
• It goes on for weeks. Private displays often run before and after 5 November, sometimes through to New Year.

Your dog cannot know the noise is planned or that it will end safely. Recognising how much they are hearing can help you plan with more empathy, and start preparing before the busiest nights.

How to help your dog through fireworks season

Because dogs pick up so much more of what is happening, the aim is to reduce how much reaches them and give them somewhere they feel secure.

• Start early. Begin any new routine or calming support a week or two before 5 November, not on the night.
• Walk in daylight. Give your dog time to sniff and go to the toilet before fireworks are likely to start.
• Soften the sound. Close windows and curtains, and play familiar music or television at a comfortable volume.
• Offer a safe den. Let your dog choose a quiet hiding place and never pull them out of it.
• Comfort them if they ask. Calm reassurance will not make them more fearful.
• Speak to your vet if your dog panics, tries to escape or has a history of severe noise fear.

For a full step-by-step plan, see our guide to preparing your dog for Bonfire Night, and read why some dogs are more scared of fireworks than others.

NutriPaw's Calming Treats provide consistent daily support for relaxed behaviour and emotional balance, without sedating your dog or changing their personality. They contain ingredients including chamomile, passion flower and L-tryptophan, and work best as part of a wider routine rather than a replacement for a safe home or veterinary advice. ^[8]

Frequently asked questions

How far away can dogs hear fireworks?

There is no single figure, as it depends on the firework, the surroundings and the dog. Dogs can detect slightly fainter sounds than we can, and for high-pitched sounds they may hear them from up to around four times farther away.

Can dogs hear higher pitches than humans?

Yes. Research suggests dogs can hear up to around 45 kHz, more than twice the upper limit usually quoted for human hearing.

Do fireworks sound louder to dogs?

Not exactly. Dogs pick up fainter, more distant and higher-pitched sounds than we do, so they notice more of the noise, but a loud bang is not simply amplified for them.