Flat-Coated Retriever Puppy Weight Calculator

Calculate the adult weight for your Flat-Coated Retriever. Just type your puppy’s current weight and age, and see how big your puppy gets.

Flat-Coated Retriever Growth Guide

Breed Overview

The Flat-Coated Retriever is a cheerful, outgoing, and versatile gun dog originally bred in 19th-century England for retrieving game on land and water. Recognized for their sleek, feathered coat and constantly wagging tail, Flat-Coats are known as the “Peter Pan” of retrievers due to their slow-to-mature, playful nature. They are affectionate with families and thrive in active households that can match their enthusiasm and energy.

This breed falls into the large dog category, with adult males typically weighing 60–80 pounds and females slightly less at 55–75 pounds. Because of their size and energetic growth phase, it’s essential to monitor a Flat-Coated Retriever’s weight and development closely. Proper tracking helps support joint health, reduce risks of developmental orthopedic disease, and establish a healthy adult weight.

For more information, visit the Flat-Coated Retriever Society of America or the AKC breed standard.

Flat-Coated Retriever Growth Chart & Weight Ranges

Age	Male Weight Range	Female Weight Range
4 weeks	4 – 6 lbs	3.5 – 5.5 lbs
8 weeks	10 – 15 lbs	8 – 13 lbs
3 months	22 – 28 lbs	20 – 25 lbs
4 months	30 – 38 lbs	27 – 35 lbs
6 months	45 – 60 lbs	40 – 55 lbs
9 months	55 – 70 lbs	50 – 65 lbs
12 months	60 – 80 lbs	55 – 75 lbs

Males typically weigh 5–10 lbs more than females and may be slightly taller at the withers.

How Much Bigger Will My Flat-Coated Retriever Puppy Get?

Flat-Coated Retrievers experience rapid growth between 2 and 6 months and typically reach 50% of their adult weight by 4–5 months of age. Most will be close to their final adult size by 12 months, though males may continue filling out until 18 months.

Rule of Thumb:
Double your Flat-Coat puppy’s weight at 16 weeks to get a general estimate of their adult weight.

Flat-Coats mature mentally and physically more slowly than other breeds, so don’t be alarmed if they remain lanky or puppy-like into their second year.

Flat-Coated Retriever Growth Tips

Nutrition

• Feed a large-breed puppy food to support slow, steady growth and minimize the risk of joint disorders.
• Offer 3 meals a day until around 6 months of age, then reduce to 2 meals daily.
• Avoid overfeeding—Flat-Coats love food, but excess weight can strain their growing joints.

Exercise

• Provide daily age-appropriate exercise like leash walks, gentle fetch, or swimming.
• Avoid high-impact activities (like jumping or long runs) before 12–15 months to protect hips and elbows.
• Encourage mental stimulation with training games and scent-based tasks.

Health Watch

• Flat-Coated Retrievers are prone to hip and elbow dysplasia, as well as soft tissue sarcomas later in life.
• Keep puppies lean and monitor weight regularly to reduce strain on developing bones.
• Schedule regular vet checkups, especially during their growth period, to monitor skeletal development.