Puppy Growth Formula:
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The Puppy Size Calculator estimates a dog's adult weight based on its current weight and age in weeks. This simple formula helps predict how big your puppy will grow.
The calculator uses the puppy growth formula:
Where:
Explanation: The formula assumes puppies reach half their adult weight by 4 months (16 weeks) and full size by 1 year (52 weeks).
Details: Knowing your dog's potential adult size helps with planning for appropriate food, crate size, exercise needs, and living space requirements.
Tips: For best results, weigh your puppy weekly and recalculate. The estimate becomes more accurate as your puppy grows. Works best for ages 8-20 weeks.
Q1: How accurate is this calculator?
A: It provides a rough estimate. Accuracy varies by breed, with large breeds often growing slower than predicted and small breeds faster.
Q2: When does the formula stop being accurate?
A: After about 5-6 months (20-24 weeks), the prediction becomes less reliable as growth rates slow.
Q3: Does this work for all dog breeds?
A: It works best for medium-sized breeds. Giant breeds may grow slower and small breeds faster than predicted.
Q4: What if my puppy is under/overweight?
A: The estimate assumes normal growth. Underweight puppies may project smaller than actual, overweight puppies larger.
Q5: Can I use this for mixed breed dogs?
A: Yes, but accuracy depends on knowing the dominant breeds in the mix.