Dog Size Calculator – Find Your Dog’s Size by Weight and Breed
Our Dog Size Calculator helps you quickly determine your dog’s size category based on their weight and breed. Whether your dog is Toy, Small, Medium, Large, or Giant, knowing their size is essential for proper feeding, exercise, and overall care. This calculator uses real adult weight ranges and veterinary-based size classifications to give you an accurate result in seconds. If you have a puppy, this tool can also help estimate the size they are likely to reach as an adult. For mixed breeds, weight is one of the best indicators of size.
This dog size calculator works for all breeds and mixed breed dogs
Dog Size Chart by Weight
Dog size is typically classified using adult weight ranges:
Dog Size Adult Weight
Toy Under 5 kg
Small 5 to 10 kg
Medium 10 to 25 kg
Large 25 to 40 kg
Giant Over 40 kg
These categories are widely used to guide feeding, health care, and exercise requirements.
Why Your Dog’s Size Matters
Your dog’s size affects many aspects of their life. Larger dogs need more food, more space, and different exercise compared to smaller dogs. Size also influences life expectancy, joint health, and calorie needs.
Understanding your dog’s size category helps you choose the correct:
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food portions
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crate size
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bed size
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exercise level
How to Tell What Size Your Dog Is
The most reliable way to determine your dog’s size is by using their adult weight. Breed can also provide a strong indication, especially for puppies that have not yet finished growing.
Our dog size calculator combines both weight and breed information to give you the most accurate result possible.
What Size Will My Puppy Be?
Puppies grow rapidly, and their adult size may be much larger than their current weight suggests. Larger breeds grow for longer and reach higher adult weights.
Using a dog size calculator can help predict whether your puppy will become a medium, large, or giant dog.
Use the Dog Size Calculator Above
Enter your dog’s weight and breed into the calculator above to instantly find their size category.
This tool works for:
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puppies
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adult dogs
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mixed breeds
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all dog types
Related tools:
Dog Feeding Calculator
Puppy Growth Calculator
Dog Age Calculator