How Big Will My Puppy Get?
Puppy growing too fast? Adult dog not losing weight? Our puppy weight calculator and adult dog weight calculator work together to give you quick, clear size info based on breed, age, and weight. We used AI tools and the American Kennel Club's database to track size ranges across 360+ breeds. You'll know your dog's ideal weight range in lbs.
How to Calculate Dog Weight?
Figuring out how much your dog weighs is easy when you use the right method. Puppies grow fast, so use a puppy calculator for future size. For adults, a scale at home works great. Knowing your dog's weight keeps you ahead on feeding, growth, and health problems.
For Puppies:
Try the formula(1 lb ≈ 0.45 kg):
(Puppy's weight in lbs ÷ age in weeks) × 52 = adult weight estimate
Example:
If your 10-week-old pup is 6 lbs:
→ (6 ÷ 10) × 52 = 31 lbs when grown
For Adult Dogs (Home Scale Method):
- 1.Weigh yourself first
- 2.Hold your dog and weigh again
- 3.Subtract your weight = your dog's weight
Dog Weight Chart
Your dog's size affects calories, homemade food needs, and breed-based health risks. So it's smart to check where they fit using a dog weight chart by breed.
| Size Group | Pounds (lbs) | Kilograms (kg) |
|---|---|---|
| Tiny | 0–10 | 0–4.5 |
| Small | 11–25 | 5–11 |
| Medium | 26–50 | 12–23 |
| Large | 51–90 | 23–41 |
| Giant | 91+ | 41+ |
How to check your dog's healthy weight with breed.dog
Here's how you can use our dog weight calculator in 3 simple steps. It's easy, free, and gives results fast.
Enter your dog's info
Type in your dog's breed, birthday, weight in lbs, and gender.
Get the estimated adult weight
We use a smart formula built on American Kennel Club growth data to calculate how big your puppy will get—or check if your adult dog is on track.
Compare to breed standards
See your dog's number next to a clear dog weight chart by breed. You'll know if they're under, over, or just right—and what to do next.
Why Choose Our Dog Weight Calculator
The most accurate and helpful tool to track your dog's healthy weight and growth
Works on all devices
Fully responsive, fast, and clean—use it on any browser, phone, or tablet without downloads.
Super fast results
Get weight estimates and growth info in seconds. No waiting, no loading issues.
More than just a number
We also give helpful tips on calories, feeding, health, and homemade food—based on your dog's breed and size.
AI-powered and breed-aware
We've trained it on AKC data across 200+ breeds, so it gets real size patterns—not just generic guesses.
Free to use, always
No signups. No services hidden behind paywalls. Just simple, online, and free dog health info.
Handles real problems
Whether your dog needs to lose weight, gain, or maintain, we give clear answers and solutions that actually help.
Use Dog Weight Calculator in Everyday Moments
Discover how pet owners are using our dog weight calculator in everyday life. Here are practical ways our calculator helps dog owners understand their pets better.
Check if your adult dog is overweight
I typed in my dog's age and weight. The adult dog weight calculator showed she's a bit above the breed range.
Track changes after switching food
After switching to grain-free, I check weight weekly using the dog weight chart to catch any gain or loss.
Figure out crate or jacket size
I used the calculator to guess my dog's adult size, so I could buy a winter coat that'll still fit next year.
Use during vet visits
My vet asked about weight history—I pulled up this online service and showed growth based on the AKC database.
Compare siblings' sizes
I have two puppies of the same breed. I use this tool weekly to check if their growth stays on track.
Catch early weight problems
I noticed our Beagle was above the dog weight chart by age and breed. We added more walks and fewer snacks.
What Users Are Saying About Dog Weight Calculator
"Super easy to understand"
I just typed in my puppy's breed and age, and boom—I got the adult weight. You even show the expected range for that breed.
- Mia Thompson
"Helped me adjust feeding"
I used the adult dog weight calculator and saw my dog was 10 lbs over. I cut back some calories and added walks.
- James Lee
"Let me plan ahead"
I used the puppy weight calculator before getting a crate. Knowing he'll be 70 lbs helped me buy the right size.
- Brooke Sanders
"Easy even for my kid"
My 11-year-old used it to guess our pup's grown-up weight. She got it right, almost to the pound.
- Emma Foster
FAQs
A dog weight calculator is a tool that helps you estimate your dog's current or future weight based on breed, age, and size.
Yes, it's 100% free to use online, with no sign-up required.
Anyone with a puppy or adult dog can use it—whether you're a pet owner, breeder, or just curious.
Yes. We don't store your data. Everything runs in your browser and stays private.
You enter your dog's breed, age, weight, and gender. We use formulas based on the American Kennel Club's database to predict adult size or check health.
Use the formula: (9 ÷ 12) × 52 = 39 lbs estimated adult weight.
That's usually a medium-sized dog—like a Cocker Spaniel or a smaller Border Collie.
A dog's brain is about the size of a lemon, but brain size doesn't predict body size.
Use the AI dog weight calculator and enter the dominant breed or average expected size range.
Small breeds: 5 oz/week. Large breeds: up to 2 lbs/week, depending on age and growth rate.
Most puppies hit half their adult weight by 16 weeks, especially medium to large breeds.
Add more calories using healthy puppy food or homemade meals. Talk to your vet if growth stays slow.
Could be low calories, worms, or health issues. Try tracking using a dog calculator weight tool and consult a vet.
Use our dog weight chart by age and breed to compare. You should also be able to feel ribs but not see them.
Sometimes. Big paws may mean a big dog, but it's not always true. Use a how much will my dog weigh calculator for better accuracy.
It means you double your puppy's weight at 16 weeks to guess adult weight. Example: 20 lbs at 16 weeks = about 40 lbs full grown.
