Labrador Retriever Puppy Weight Calculator & Growth Chart

Labradors are one of the quickest-growing large breeds. A typical Lab puppy roughly doubles in weight between 8 and 16 weeks, and is close to adult height by its first birthday.

Labrador Retriever growth chart

Typical adult weight: males 65–80 lb, females 55–70 lb. Most Labrador Retrievers reach adult weight at around 18 months.

Labrador Retriever weight by age

Age	Male	Female
8 weeks	11.1–13.6 lb	9.4–11.9 lb
12 weeks	21–26 lb	17.6–22 lb
16 weeks	29–36 lb	25–32 lb
20 weeks	36–44 lb	30–39 lb
6 months	43–53 lb	36–46 lb
8 months	51–62 lb	43–55 lb
10 months	57–70 lb	48–61 lb
12 months	60–74 lb	51–65 lb
15 months	64–78 lb	54–69 lb
18 months	65–80 lb	55–70 lb

Estimated from the typical adult range and our size-group growth curve. Individual puppies vary.

How Labrador Retriever puppies grow

Expect rapid gains up to about 6 months, followed by slower, steadier growth until 12–18 months.
Males are usually 10–15 lb heavier than females as adults.
English (show) Labs are often stockier than American (field) Labs, so two healthy Labs of the same age can differ in weight.

Tips for healthy growth

Labs are prone to overeating. Weigh portions rather than scooping, and count treats as part of daily food.
Keep exercise moderate while they grow: long runs and repeated jumping are best left until growth plates close.
A body-condition check (a visible waist from above, ribs easy to feel) matters more than hitting an exact number.

Other growth guides

Weight ranges: AKC breed standard (akc.org/dog-breeds). This is general information, not veterinary advice.