Use this Toy Fox Terrier puppy weight calculator to predict how big your puppy will get. Toy Fox Terriers are a toy breed that typically reach full size by around 9-12 months.
Enter your puppy's current weight and age to predict their adult size
Estimates based on breed growth curves. Individual dogs vary with genetics and nutrition — check with your vet for a personalized read.

Indoor/outdoor enclosure — a good fit for toy and small breeds.
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| Age | Weight |
|---|---|
| Birth | 0.1 to 0.3 lbs |
| 2 Months | 1 to 3 lbs |
| 3 Months | 1 to 4 lbs |
| 4 Months | 2 to 5 lbs |
| 5 Months | 2 to 5 lbs |
| 6 Months | 3 to 6 lbs |
| 7 Months | 3 to 7 lbs |
| 9 Months | 3 to 8 lbs |
| 10 Months | 4 to 9 lbs |
| 1 Year | 4 to 9 lbs |
| 1.5 Years | 4 to 9 lbs |
| 2 Years | 4 to 9 lbs |
Estimated from typical toy-breed growth curves and the Toy Fox Terrier's adult weight range. Individual puppies vary — use the calculator above for a prediction based on your puppy's actual current weight.
New breed data, growth tips, and puppy-parenting insights, plus our free printable puppy growth tracker.
Prone to patellar luxation and dental crowding common in small breeds; Legg-Calvé-Perthes disease can also occur.
A quality small-breed diet in measured portions.
The short coat needs minimal brushing.
Highly intelligent and trainable, excelling at tricks and agility — needs real daily mental engagement despite its small size.
An American toy breed developed from Smooth Fox Terriers bred down in size, retaining genuine terrier spirit in a compact body.
Intelligent and energetic, Toy Fox Terriers are alert little dogs with real working-terrier instincts.