Labrador puppy growth chart: what to expect
Labrador puppies grow quickly, with most of their height gained in the first six months, and typically reach their full adult weight — often somewhere between 25kg and 36kg depending on build and sex — by around twelve to eighteen months. A growth chart is a useful average to check against, not an exact target for your individual puppy.
How Labrador growth actually happens
Labradors gain height fastest in the first few months and then spend the following year filling out in chest and muscle rather than growing much taller. This is why a lanky-looking eight-month-old Labrador with plenty of growing still to do is completely normal rather than a sign anything is wrong.
As a medium-to-large breed, a Labrador's growth plates typically close later than a small dog's, generally somewhere between twelve and eighteen months, which is part of why vets often advise against strenuous exercise like long runs or repeated jumping before that point.
Reading a growth chart sensibly
A chart plots average weight against age across lots of Labradors, so it will always show a fairly wide band rather than one line, because working-line and show-line Labradors, and males and females, can differ noticeably in adult size.
Use the chart to spot a trend rather than to judge a single weigh-in. A puppy tracking steadily along their own curve, even if that curve sits toward the lower or higher end of the band, is usually doing exactly what they should.
Keeping a growing Labrador at a healthy weight
Labradors are well known for having a strong interest in food and for gaining weight easily as adults, so it is worth building good portion habits from puppyhood rather than trying to correct them later. Follow the feeding guide for your specific food and adjust based on body condition rather than the age on the bag alone.
Regular weigh-ins during the growth period, alongside the simple rib and waist check any vet can show you, catch a puppy who is gaining too fast or too slowly far earlier than waiting for a scheduled vaccination visit to notice.
Common questions
- When is a Labrador fully grown?
- Most Labradors reach close to their adult weight by around twelve months and finish filling out in chest and muscle by around eighteen months. Growth plates typically close in that same window, which is why strenuous exercise is usually held back until then.
- How much should a Labrador puppy weigh at each age?
- It varies a lot by sex and build, which is exactly why a single number is less useful than tracking your own puppy's trend on a chart over several weeks. Your vet can weigh your puppy at routine visits and tell you whether they are tracking well.
- Why does my Labrador puppy look lanky?
- Labradors gain height quickly in the first few months and then spend much longer filling out in chest and muscle, so a taller, leaner-looking puppy between around six and twelve months is normal rather than a sign of a problem.
- How do I stop my Labrador puppy becoming overweight?
- Follow the feeding guide for your specific food rather than free-feeding, and check body condition regularly by feeling for the ribs and looking for a waist. Labradors are prone to weight gain as adults, so good habits started as a puppy make a real difference later.
Related
Sources
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.