How Big Do King Bernedoodles Get?

If you're wondering about King Bernedoodle size before you fall completely in love with one of my puppies, let me answer the big question right up front: I expect my adult King Bernedoodles to be about 25–35 pounds. That's it. Not 80 pounds. Not 120 pounds. Not a giant-breed dog that needs a truck and a giant food budget. Just a beautiful, medium-small companion that fits in your car, your home, and very often your lap.

"How big do King Bernedoodles get?" is the first question almost every family asks me, and I love that they ask, because doodle size labels can mean very different things from one breeder to the next. This page walks you through what that 25–35 pound range means: where it comes from, how quickly puppies get there, how the parents help us estimate it, and what it means for real life, like crates, cars, apartments, and getting your puppy home.

How Big Is a Full Grown King Bernedoodle?

A full grown King Bernedoodle in my program is typically 25–35 pounds. That's the size I breed for, and it's very different from the oversized descriptions you may find attached to the "King Bernedoodle" name elsewhere online.

That king bernedoodle weight comes straight from the parents I pair:

Cavalier King Charles Spaniels typically weigh 13–18 pounds.
Mini Bernedoodles typically weigh 25–40 pounds.

When I pair a Cavalier or a Cavapoo with a Mini Bernedoodle, those two size influences come together in puppies that generally mature in that 25–35 pound sweet spot. I'll always be honest with you, though: adult size is an estimate, not a guarantee. The specific parents in a litter matter, and puppies in the same litter can mature a little differently.

Where My King Bernedoodle Size Comes From

I'm very intentional about which parents I pair. The Cavalier side brings in the smaller, gentle influence, and the Mini Bernedoodle side brings the Bernedoodle personality, build, and those gorgeous tricolor markings families love.

When you look at my upcoming litters, look at both the mom and the dad. Their size is the best starting point for understanding the range you're working with, before you ever fill out an application.

King Bernedoodle Size Compared With Other Bernedoodle Sizes

Bernedoodle size labels are not standardized. One program's "Mini" might be another program's "Medium." That's why I always tell families to focus on expected adult weight, not the size name.

At 25–35 pounds, my King Bernedoodles sit within the Mini Bernedoodle range. They're not a Medium, and they're definitely not a Standard. If you want to understand more about what a King Bernedoodle actually is, read What Is a King Bernedoodle?

How Big Is a Full Grown Mini Bernedoodle?

Most full grown Mini Bernedoodles weigh about 25–40 pounds, depending on the parents and the program. The best predictor is mom and dad, so always ask what they weigh. My King Bernedoodles finish at 25–35 pounds, which puts them on the smaller, more predictable end of the Mini range.

Bernedoodle Size Chart: Where Does a King Bernedoodle Fit?

The names vary by program, but here's how Bernedoodle sizes generally break down, and where a King Bernedoodle fits:

Toy / Petite Bernedoodle: Approximate adult weight: 15–25 pounds
Mini Bernedoodle: Approximate adult weight: 25–40 pounds (my King Bernedoodles, at 25–35 pounds, fit here)
Medium Bernedoodle: Approximate adult weight: 40–60 pounds
Standard Bernedoodle: Approximate adult weight: about 60–90 pounds
Bernese Mountain Dog: Approximate adult weight: 60–110 pounds

My King Bernedoodles are for families who want a dog that's a little more substantial than a toy doodle, big enough to feel like a real dog and sturdy enough for kids to love on, but still easy to pick up, fit in a normal car, and not bowl over Grandma. They are the Goldilocks of dogs. Not too big. Not too small. Just right.

If you're weighing a King Bernedoodle against a Standard Bernedoodle, my King Bernedoodle vs Standard Bernedoodle comparison goes into the details.

King Bernedoodle Growth Stages

Because King Bernedoodles mature at 25–35 pounds, their growth timeline looks like a medium-small dog's, not a large or giant breed's. Here's the general picture, keeping in mind that every puppy is an individual.

Puppyhood Through About 5 Months

This is the stage where you blink and they look different. Growth is fast and visible, and a puppy headed for 25–35 pounds may reach roughly half its adult weight somewhere around 4–5 months. It's also one of the most important windows for training and socialization.

About 6 Months to the First Birthday

Growth continues through the first year, but it slows noticeably after that early burst. By their first birthday, most King Bernedoodles are close to their adult height. Close to full size doesn't always mean fully filled out, though. Think of a teenager who has hit their full height but still has some filling out to do.

12 to 18 Months: Filling Out

After the first birthday, most dogs this size keep maturing a bit in their chest and build even after height is basically set. I tell my families to think of adult weight as a range, and of 12–18 months as the final settling-in stage rather than one weigh-in date. For a month-by-month look at that first year, see The First Year With a King Bernedoodle.

Male vs Female King Bernedoodle Size

Males may be a little larger or more solidly built than females, but there's a lot of overlap, and a smaller male can easily end up close in size to a larger female from the same litter. I don't give separate size promises by sex, because the parents tell you far more than sex does.

When families ask whether to get a boy or a girl, I gently steer the conversation toward personality. At 25–35 pounds, we're not talking about a difference that will change your daily life, and temperament fit with your family matters so much more.

Factors That Influence Adult Size

Genetics drive how big any puppy grows, and the single most useful thing to look at is the size of the parents. For example, if mom is 22 pounds and dad is 30 pounds, you have a reasonable picture of the range. Even so, puppies in one litter can land toward different ends of it. Genetics don't always deal the cards in perfect proportions.

Coat Doesn't Determine Size

Coat type has nothing to do with how big a puppy will grow. Whether a puppy has a wavy, curly, or straight coat is a separate question entirely. (And coat texture doesn't decide shedding either. Furnishings and low-shed genes do. Read more in Are King Bernedoodles Hypoallergenic?)

How Much Space Does a King Bernedoodle Need?

One of the things I love about the 25–35 pound size is that it doesn't demand a mansion. What a King Bernedoodle needs is your company, daily time outside, moderate activity, and a safe, comfortable place to rest.

Apartments can absolutely work for a dog this size when the family is committed to companionship, outdoor time, and training. A big backyard is wonderful, but it's not a substitute for you. A smaller home with an engaged family beats a big, empty house every time.

Crate Size for a 25–35 Pound Adult

The right crate lets an adult dog stand up fully, turn around comfortably, and stretch out. Manufacturer sizing charts commonly suggest:

A 24-inch crate for dogs around 20–30 pounds
A 30-inch crate for dogs around 31–40 pounds

I'd plan toward the 30-inch size, since some King Bernedoodles mature near the top of the range, and remember you're buying for the adult dog, not the little puppy coming home. A divider lets you use it from day one. We introduce crate training before puppies go home, and that early positive start is a gift, so keep it going the moment your puppy arrives.

Cars, Errands, and Home Life

A 25–35 pound adult is so much easier to manage day to day than a Standard Bernedoodle or a Bernese Mountain Dog. Car rides, errands, and everyday outings are genuinely practical at this size. My puppies also get car rides before they go home, so they aren't meeting the car for the first time on go-home day.

Flying and Long-Distance Travel

Families far from Utah ask about this a lot. The in-cabin flight nannies I recommend fly the puppy to you, not a grown dog, and usually cost $700–$1,000 round trip. You have three options:

In-cabin flight nanny to your local airport
Meet me at the Salt Lake City airport
Pick up at our home in South Jordan, Utah, about 20 minutes from the SLC airport

I place puppies with families all over the US, so distance is rarely a barrier.

Exercise for a 25–35 Pound King Bernedoodle

Forget any "large dog" framing. King Bernedoodles are active-family companions who are just as happy on a lazy Sunday as on a trail. They're generally chill, they love other dogs and all people, and they're a delight to be around. My King Bernedoodle temperament page covers their personality in full.

They fit families who want a dog that joins regular life (walks, backyard time, outings with the kids) without needing nonstop high-intensity exercise. I won't prescribe exact amounts here, because every dog's needs vary with age, personality, and health, and that's a great conversation to have with your vet.

Training and Socialization Matter More Than Size

King Bernedoodles are intelligent and social, so early training and socialization pay off enormously. Before your puppy is fully vaccinated, including rabies, please skip dog parks, walks, and putting their paws down anywhere other dogs go. Carry them or use a stroller and get them out into the world safely, so they learn that the world is safe, people are kind, dogs are friendly, and they can do hard things.

Nutrition and Growth

I'll keep this honest and simple: genetics and the parents set your puppy's expected adult size. Feeding isn't a way to adjust adult size. A puppy grows toward their genetic potential with steady, appropriate nutrition, and I wouldn't try to steer a number on the scale through diet. Follow your vet's guidance on your puppy's growth and body condition.

Not every puppy follows the same week-by-week pattern. Some will land near 25 pounds, others near 35. The range is the expectation, not one ideal number. My Feeding a King Bernedoodle page covers the basics, and every family gets a printed go-home packet with what their puppy has been eating.

Preparing for a Full Grown King Bernedoodle

So what does life with a 25–35 pound King Bernedoodle look like? A well-sized companion who fits in your car, sleeps in a normal-sized crate, needs daily outdoor time and consistent training, and pays back every bit of effort with enormous love.

Before your puppy ever comes home, a lot of work has already gone into setting them up for success. Every puppy is raised in my home with my young kids, or in a guardian home under my instruction. Beginning week three, we do a simple 10-step handling process daily with each puppy. Your kids will thank you, your groomer and your Vet will thank you.

Here's what's already done before your puppy reaches you:

Deworming every two weeks, starting at 3 weeks
First vaccines at about 6 weeks
A vet exam at 6–8 weeks
Crate introduction and car rides
Litter-box potty training from weeks 3–4, and outside potty training around week 7
A printed go-home packet

The next shots are due around 9–10 weeks with your family, and your vet will guide the schedule from there.

On health: every parent is DNA tested through Embark for 175+ diseases (with Animal Genetics testing when deeper testing is needed) and OFA tested by a certified vet for eyes, heart, patellas, hips, and elbows. Every puppy comes with a 2-year health guarantee. Because there are so many scammers out there, I don't post health results online, but I'm always happy to share them privately.

When you're ready, start with the parents listed for each litter. See our upcoming King Bernedoodle litters, or learn more about King Bernedoodles first.

Frequently Asked Questions

How big do King Bernedoodles get?

My adult King Bernedoodles are typically 25–35 pounds. That size comes from the parents I pair: Cavaliers (typically 13–18 pounds) with Mini Bernedoodles (typically 25–40 pounds). If you've seen King Bernedoodles described at 80–120 pounds elsewhere, that's a very different cross from what I breed.

How big is a full grown Mini Bernedoodle?

Most full grown Mini Bernedoodles weigh about 25–40 pounds, depending on the parents and the program. My King Bernedoodles finish smaller and more consistent, at 25–35 pounds.

When are King Bernedoodles fully grown?

For a dog maturing at 25–35 pounds, height is mostly set by around 9–12 months, and the body keeps filling out through about 12–18 months. By their first birthday, most are close to adult height and much of their adult weight.

Are male King Bernedoodles larger than females?

Males may be a little larger or more solid, but there's lots of overlap. The parents are a better guide to adult size than sex is.

Do King Bernedoodles keep growing after one year?

A little filling out after the first birthday is normal, mostly in the chest and build. If your one-year-old still looks a bit lanky, that's completely normal.

What crate size does a full grown King Bernedoodle need?

A crate should let your adult dog stand, turn around, and stretch out. Manufacturer charts commonly suggest 24 inches for dogs around 20–30 pounds and 30 inches for 31–40 pounds, so I'd plan on a 30-inch crate with a divider for puppyhood.

Can a King Bernedoodle live in an apartment?

Yes, with the right commitment. A 25–35 pound dog doesn't need a big house or yard. They need your time, daily outdoor access, moderate activity, training, and companionship. Follow along on Instagram @wonderful_world_doodles to see our puppies growing up.

I WANT A KING BERNEDOODLE