Whippet puppy growth chart: how to read it
A growth chart is only useful read as a trend, not a target. A Whippet is a lightly built sighthound that fills out fast in the first few months and reaches most of its adult height and weight considerably sooner than a large or giant breed — but the exact shape of that curve varies between individual dogs even within the same breed and litter.
How a Whippet's growth typically goes
Whippets are a small-to-medium sighthound, generally settling somewhere in the region of 9 to 19kg as adults, with plenty of natural variation between individual dogs and a difference between the sexes, males usually running a little heavier than females. Most of that growth happens in the first six to nine months, with the final filling-out of muscle and frame continuing a little more gradually after that.
That fast early growth is worth being aware of because it means a Whippet puppy's food needs are changing quickly during those first months, which is exactly why a puppy-specific formula, fed according to the guide on the bag and adjusted for how your own puppy is actually growing, matters more here than trying to hit a number on a generic chart.
What matters more than a single number on a chart
A chart or growth curve is a guide to the shape of normal growth, not a fixed target your puppy has to hit at a given age. Two healthy littermates can track slightly different curves and both be entirely normal, so a single weigh-in that sits a little above or below an average figure online is rarely worth worrying about on its own.
What is worth watching is the trend over several weeks: steady, gradual gain in proportion to your puppy's frame is the reassuring pattern, while a sudden plateau, a drop in weight, or growth that looks noticeably off track from your puppy's own earlier pattern is more informative than comparing against a generic chart at all.
When to talk to your vet about growth
Routine puppy check-ups are a natural point to have your vet weigh your Whippet and comment on how they are tracking, since they can compare against your specific puppy's own history rather than a generic breed average. Mention it sooner than that if your puppy's growth seems to have stalled, gone backwards, or if they seem unusually lethargic alongside it.
A vet is also the right person to ask if you are ever unsure whether your puppy is being fed the right amount for their stage of growth — a food change based on a chart reading alone is a less reliable guide than a professional assessment of your actual dog.
Common questions
- How big does a Whippet get?
- Adult Whippets typically weigh somewhere in the region of 9 to 19kg, with males usually a little heavier than females, though there is real variation between individual dogs. Height and weight both vary enough that a single figure is only ever a rough guide.
- When does a Whippet stop growing?
- Most of a Whippet's height and weight is reached within the first six to nine months, with some final filling out of muscle continuing a little longer after that. Individual dogs vary, so use your puppy's own trend rather than a fixed age as the guide.
- Is it normal for a Whippet puppy's growth to slow down suddenly?
- A gradual levelling off as a puppy approaches its adult size is normal. A sudden plateau, a drop in weight, or growth that looks genuinely different from your puppy's earlier pattern is worth mentioning to your vet rather than assuming it will sort itself out.
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Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.