Pets
Chihuahua Puppy Weight Calculator — Estimate Adult Size.
Estimate your Chihuahua puppy's adult weight. Enter current age and weight to see a growth curve, expected adult size, and breed-specific weight ranges for male and female Chihuahuas.
Puppy Info
lbs
in
Floor to withers
in
Chest to tail base
Chihuahua · Breed Standard (Male)
Weight
3–6 lbs
Height
6–9 in
Length
7–10 in
Estimated Adult Size
Chihuahua · Male · 12 weeks old
Adult Weight
7.2lbs
Range: 34 – 6.9 lbs
Shoulder Height
6.8in
5.7 – 7.8 in
Body Length
7.7in
6.6 – 8.9 in
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A Chihuahua puppy weighing 10.0 lbs at 12 weeks is estimated to reach 7.2 lbs as an adult.
Growth Curve
Projected weight at each developmental milestone (4–52 weeks)
How It's Calculated
Adult Weight = (Current Weight / Growth%) × Gender Factor = (10.0 / 25.0%) × 1.000
Gender factor: 1.0 (male) / 0.875 (female). Growth % based on Toy breed curve.
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