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Flat-Coated Retriever Growth Chart
The Flat-Coated Retriever is the eternal optimist of the sporting breeds — lean, racy, and famous for staying puppy-like well into adulthood. Flat-Coat puppies grow steadily through their first year, often looking leggy and lean before muscle fills in. Most reach adult weight between 14 and 18 months, with full physical maturity sometimes taking a bit longer.
View weight chart (lb & kg)Calculate Your breeds.flat-coated-retriever Puppy's Adult Weight
Enter your breeds.flat-coated-retriever puppy's age and current weight for an estimated adult weight range.
breeds.flat-coated-retriever weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most breeds.flat-coated-retriever puppies approach adult weight around 18 months, although individuals may finish earlier or later.
These estimated ranges combine the breed's adult weights with a size-based growth curve. They are not measured breed-specific percentiles or health targets. Month labels are rounded approximations; use the week values for each row. How these weight ranges are calculated
breeds.flat-coated-retriever Growth Stages
Understanding the typical growth stages helps you know what to expect as your breeds.flat-coated-retriever puppy grows.
Neonatal
0–2 weeksPuppies are born with eyes and ears closed, relying entirely on their mother. Rapid weight gain occurs during this period.
Socialization
3–12 weeksEyes and ears open. Puppies begin to explore, play, and learn social behaviors. This is a critical period for development.
Juvenile
3–8 monthsRapid growth continues. Puppies become more independent, start teething, and develop coordination.
Adolescent
8–14 monthsGrowth rate begins to slow. Puppies reach sexual maturity and may test boundaries. Muscle mass develops.
Young Adult
14–18 monthsGrowth is nearly complete. Your puppy is filling out and approaching adult proportions.
Adult
18+ monthsYour puppy has reached their full adult size. Weight should remain relatively stable with proper nutrition.
breeds.flat-coated-retriever FAQ
How much will my Flat-Coated Retriever puppy weigh as an adult?
Adult Flat-Coated Retrievers typically weigh between 55 and 79 lb overall. Males usually reach 60-79 lb and females usually 55-71 lb. They are leaner and lighter-boned than Labradors of similar height, so a healthy Flat-Coat often weighs less than its frame might suggest.
At what age is a Flat-Coated Retriever fully grown?
Most Flat-Coats reach adult weight between 14 and 18 months. This is a famously slow-maturing breed mentally and physically, so do not be surprised if your dog keeps filling out and gaining a little muscle into its second year.
How accurate is a Flat-Coated Retriever puppy weight chart?
It is a solid baseline, but individual variation is wide in this breed. Working and field lines often run lighter and leggier than show lines, and puppies go through an awkward lanky phase where they look underweight while growing normally. Consistent weigh-ins on the same scale matter more than any single reading.
How much should a Flat-Coated Retriever puppy weigh at 12 weeks?
Check the 12-week row in the weight-by-age table above for the estimated male and female ranges. If your puppy falls well outside that band, re-check the scale, the lb/kg setting, and the age entry first — a single off reading is more common than a truly unusual puppy.
Do male and female Flat-Coated Retrievers grow differently?
Males are usually a bit larger and heavier, typically 60-79 lb versus 55-71 lb for females. Growth speed through puppyhood is similar, so both sexes follow the same general curve, just landing at slightly different endpoints.