Dog Breed Size Calculator (Small, Medium, Large & Giant)
This Dog Breed Size Calculator helps you classify a dog as small, medium, large or giant based on its adult weight range. Understanding size category makes it easier to interpret ideal weight, calorie needs, life expectancy and joint-care risks.
Find your dog’s breed size category
Enter your dog’s adult weight (or expected adult weight) to see:
- Size category: small, medium, large or giant
- Typical adult weight range for that category
- How size impacts lifespan, joint risk and feeding strategies
Dog Breed Size Calculator
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This tool is for educational purposes only. Individual dogs may fall between categories, and mixed-breed dogs can vary widely. Always discuss concerns about growth or weight with your veterinarian.
Example
Adult weight: 32 kg (70 lb)
- Result: Large-breed dog.
- Typical range: ~25–40 kg (55–88 lb), depending on build.
- Consider joint support, slower growth in puppies and careful weight control.
Typical dog size categories by adult weight
Categories and ranges vary between sources. This table is a simplified, general guideline for companion dogs.
Next steps after size category
Use your dog’s size category to interpret ideal weight charts, calorie needs and life expectancy with more context.

