Biology

Dog Size Calculator

Estimate a puppy's adult weight.

Calculated Output

Estimated adult weight 16

Estimated adult weight 35.274

Formula: adult ≈ weight at 16 weeks × 2

Step-by-Step Breakdown

1. Values used:

2. Weight at 16 weeks = 8

4. Estimated adult weight = 16

5. Estimated adult weight = 35.274

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The math behind it

adult weight ≈ 16-week weight × 2 (works best for small and medium breeds).

8 kg at 16 weeks → ~16 kg adult.

Giant breeds?

They keep growing for 18–24 months and can exceed this estimate.