Whippet vs Greyhound: Which Sighthound Is Right for You?

A whippet and a greyhound look almost identical — both are sleek, deep-chested sighthounds built for speed — but the whippet is essentially a smaller, more apartment-friendly version. Greyhounds stand 26–30 inches and weigh 55–88 pounds, hitting up to 43 mph; whippets stand 18–20 inches and weigh 25–40 pounds, topping out near 35 mph. Both are gentle, quiet couch lovers who need less exercise than their racy looks suggest.

If you're stuck choosing between these two elegant hounds, the differences come down to size, exercise, prey drive, and how much dog you want to share your home (and bed) with. Here's the full side-by-side to help you decide.

Whippet vs Greyhound at a Glance

• Height: Whippet 18–20 in; Greyhound 26–30 in.
• Weight: Whippet 25–40 lb; Greyhound 55–88 lb.
• Top speed: Whippet ~35 mph; Greyhound ~43 mph (the fastest domestic dog).
• Lifespan: Whippet ~13–15 years; Greyhound ~10–13 years.
• Energy: Both are sprint-and-sleep dogs — short bursts, long naps.
• Temperament: Gentle, quiet, affectionate, sensitive; strong chase instinct.

The quick takeaway: a whippet is the better fit for smaller homes and first-time sighthound owners, while a greyhound offers the same mellow personality in a larger, even lazier package — often through a retired-racer adoption.

Size and Appearance: Spot the Difference

Side by side, the size gap is obvious — a greyhound towers over a whippet. Apart, they're easy to confuse. Both share the classic sighthound silhouette: a long muscular neck, a broad back, a deep chest that tapers to a tucked waist, and thin athletic legs built for a double-suspension gallop.

According to the American Kennel Club, the whippet is nicknamed the "poor man's racehorse" for its streamlined, lightning-quick build. The greyhound is described as "the champion sprinter of dogdom." If you want the look but not the length of a full greyhound, the whippet delivers nearly the same aesthetic at roughly half the height.

Worth noting: there's a third option many people don't realize exists. The Italian greyhound is a tiny 7–14 pound miniature version of the same body type — a great pick for people who want a lap-sized sighthound. Learn more in our Italian Greyhound guide.

Speed: Which Is Faster?

The greyhound wins on raw top speed. Per breed records, greyhounds reach peak speeds of at least 43 mph, making them the fastest dog breed on the planet. Whippets top out around 35 mph, per their breed data — blistering for their size, and the fastest of any dog in their weight class.

Here's the twist: whippets are famous for their acceleration. Pound for pound, a whippet can reach its top speed astonishingly fast, which is why it earned a reputation as one of the quickest-accelerating dogs alive. On a straight track a greyhound pulls ahead; off the line, a whippet is a rocket.

Temperament and Personality

This is where the two are most alike — and most surprising to newcomers. Despite looking like high-strung athletes, both breeds are famously calm, quiet, and affectionate indoors. The AKC calls whippets "amiable, dignified, and gentle," and greyhounds "gentle, noble, and sweet-tempered."

Greyhounds are the champion nappers of the dog world, often sleeping 18–20 hours a day, per Chewy's sighthound comparison. Whippets sit in the middle: quiet and cuddly in the house, then explosively active the moment they hit an open, secure yard. Both are sensitive souls who do best with gentle, positive training and don't tolerate harsh corrections well.

One shared trait to respect: a powerful prey drive. Both were bred to chase, and a squirrel or cat sprinting across the yard can trigger an instant, full-speed pursuit. This shapes almost every practical decision below.

Exercise and Living Needs

Neither breed needs the marathon exercise their build implies. Both are classic "sprinters, not endurance athletes." A couple of daily walks plus the chance to open up in a secure, fenced area a few times a week keeps most of them happy. Greyhounds, especially retired racers, are often lower energy than whippets and adapt beautifully to apartment life — they're one of the most surprising couch-potato breeds around. (See where they land in our guide to the best dogs for apartments.)

Two non-negotiables for both:

• Secure fencing and leashes: Because of that prey drive and top-end speed, off-leash time should only happen in fully enclosed spaces. A recall command is no match for 40 mph and a moving squirrel.
• Warmth: With almost no body fat and thin single coats, both breeds get cold fast. A sweater or coat for winter walks isn't a fashion statement — it's genuine comfort. Whippets and greyhounds are the reason "dogs in sweaters" became a thing.

If you're an active owner who wants a running buddy, note that both prefer short sprints to long-distance jogs; for a dedicated trail companion, browse our best dog breeds for runners.

Health and Lifespan

Whippets tend to live a bit longer — a 2024 UK study put their average life expectancy around 13.4 years — while greyhounds average roughly 10–13 years. Both are relatively healthy, low-hereditary-issue breeds, but each has a few things to watch:

• Anesthesia sensitivity (both): Their low body fat means they don't metabolize certain barbiturate anesthetics normally. Always use a vet familiar with sighthounds for surgeries and dentals.
• Heart disease (whippets): Cardiac conditions, particularly mitral valve disease in seniors, are a leading concern.
• Bloat (greyhounds): As deep-chested dogs, greyhounds face elevated risk of gastric dilatation-volvulus, a life-threatening emergency.

This is general information, not veterinary advice — talk to your vet about screening and preventive care for your individual dog.

Adoption and Cost Considerations

Greyhounds have a unique advantage: a robust rescue network of retired racing dogs, which makes adopting an adult greyhound relatively affordable and readily available. These dogs are typically already calm, house-friendly, and crate-trained. Whippets are less common in rescue and more often bought from breeders, so puppy prices tend to run higher and waitlists longer.

If your heart is set on adopting an adult and you want the fastest path to bringing one home, the greyhound rescue route is hard to beat. If you specifically want a smaller sighthound for a compact home, the whippet is worth the search.

Frequently Asked Questions

Is a whippet just a small greyhound?

Essentially, yes — they share the same body type and history, and the whippet was developed in part from greyhound stock. But they're separate, distinct breeds with their own standards, not simply a "mini" version.

Which is better for apartments, a whippet or a greyhound?

Both do well, and retired racing greyhounds are famously mellow apartment dogs despite their size. Whippets fit smaller spaces more easily by sheer size. Either can thrive in an apartment with daily walks and a warm bed.

Do whippets and greyhounds bark a lot?

No — both are notably quiet breeds. They're not typically watchdogs and rarely bark excessively, which adds to their appeal for apartment and close-neighbor living.

Can whippets and greyhounds live with cats?

Sometimes, but it depends on the individual dog's prey drive and careful introductions. Many retired greyhounds are "cat-tested" by rescues. Never leave a sighthound unsupervised with small pets until you're certain, and always manage first meetings closely.

Which breed lives longer?

Whippets generally have a slightly longer average lifespan (around 13–15 years) than greyhounds (around 10–13 years), though individual health and care make a big difference for both.

The Bottom Line

Choosing between a whippet and a greyhound isn't about temperament — both give you the same gentle, quiet, affectionate companion who sprints hard and naps harder. It's about scale and lifestyle. Want a smaller sighthound for a compact home and a slightly longer lifespan? Go whippet. Want a bigger, even lazier couch companion you can adopt affordably as a retired racer? Go greyhound. Either way, you'll need secure fencing, a warm sweater, and space on the sofa.

Still exploring sighthounds? Compare the full Whippet breed guide and the Greyhound breed guide side by side, or size down to the Italian Greyhound. Love learning about breeds like these? Subscribe to the Daily Wag newsletter for breed deep-dives, care tips, and adventure guides delivered to your inbox.