How much should a Labrador Retriever weigh? A typical adult Labrador Retriever weighs 25–36 kg (55.1–79.4 lb), with a typical lifespan of 10–12 years. That range comes from the published breed-standard data for the breed, and it is the starting point — not a prescription for an individual dog. This guide gives the ideal weight range for a Labrador Retriever, the daily calories at the middle of the range, how weight changes with age, and how to check your own Labrador Retriever at home. A Labrador Retriever is a large breed, commonly described as friendly, outgoing, active, and may be prone to hip dysplasia and ear infections.
The short version is: weigh the Labrador Retriever monthly, compare with the 25–36 kg range, and then check with your hands — ribs easy to feel under a thin layer of fat, waist visible from above, tummy tuck visible from the side. A Labrador Retriever inside the range that passes the hands-on check is at a healthy weight. A Labrador Retriever outside the range, or one that fails the check, needs its food adjusting. The Labrador Retriever food guide gives the calorie tables for this breed, and the Labrador Retriever age guide gives the human-age equivalents at every age.
How much should a Labrador Retriever weigh?
A typical adult Labrador Retriever weighs 25–36 kg as an adult, which is about 55.1–79.4 lb. At the middle of that range, about 30.5 kg, a typical neutered adult needs about 1455 calories a day — worked out from the resting energy requirement (RER) formula vets use, where RER equals 70 times body weight in kg to the power of 0.75, multiplied by 1.6 for a typical neutered adult dog. An intact adult needs about 10 to 20% more, a very active Labrador Retriever needs more again, and a senior or a Labrador Retriever that needs to lose weight needs less.
That range is a range, not a target: a Labrador Retriever at the bottom of its range and a Labrador Retriever at the top of its range are both normal Labrador Retrievers, and the right weight for an individual dog depends on its build, its muscle, its age, and its health. A muscular Labrador Retriever weighs more than a slim Labrador Retriever of the same height, and a senior Labrador Retriever that has lost muscle weighs less than it did as an adult — both can be healthy at weights that look wrong on the chart. That is why the hands-on check matters more than the number: ribs that are easy to feel, a waist that is visible, and a dog that moves well are worth more than a number inside a range. The dog body condition score chart gives the nine-point scale vets use.
How a Labrador Retriever's weight changes with age
A Labrador Retriever puppy grows fast in its first year, reaching about half its adult weight well before its first birthday, but bones and joints keep maturing after that. As a very rough guide, a puppy's weight as a share of its expected adult weight is about a fifth to a quarter at 8 weeks, about a quarter to a third at 3 months, about a third to two-fifths at 4 months, about half to two-thirds at 6 months, about three-quarters to four-fifths at 9 months, and about four-fifths or more at 12 months, when small breeds are near-adult and large breeds are still growing. Use that rough guide with the breed's expected adult weight of 25–36 kg, not instead of it.
As an adult, a Labrador Retriever's weight should be stable: the same food, the same exercise, and the same weight, month after month. If weight drifts up, cut food by about 10% and re-weigh in a month; if weight drifts down without a change in food, mention it to your vet. As a senior — from about 7 to 8 years — a Labrador Retriever may lose muscle and weight even when it is eating well, and that needs a vet check, not just more food. The Labrador Retriever lifespan guide covers the breed's life stages, and the puppy weight chart by age guide gives the growth shares by age.
How to check a Labrador Retriever at home
Run your hands along the Labrador Retriever's ribs, with flat fingers and light pressure, while the dog is standing. You should feel each rib easily under a thin layer of fat, like feeling the bones in the back of your hand. If you have to press hard to find the ribs, the Labrador Retriever is carrying too much fat; if the ribs are sharp and easy to see, the Labrador Retriever is carrying too little. Now look down at the Labrador Retriever from above: you should see a waist — a narrowing behind the ribs — and from the side you should see a tummy tuck, where the belly rises from the chest to the back legs.
Do the check monthly, at the same time as the weigh-in, and write down what you find. The line over months is what matters, not any single reading. A Labrador Retriever is too heavy for bathroom scales held in your arms: use the vet’s scales at a routine visit, or a large set of bathroom scales on a hard floor. The how to weigh your dog at home guide explains the method in detail, and the how to tell if your dog is overweight guide gives the hands-on check in detail.
Feeding a Labrador Retriever at a healthy weight
Feed a complete and balanced food suited to the Labrador Retriever's life stage, measured with scales or a measuring cup, split into two meals a day for an adult. A Labrador Retriever at the middle of its range, about 30.5 kg, needs about 1455 calories a day as a typical neutered adult — use that as a starting point, then adjust by monthly weigh-ins. Keep treats under 10% of daily calories, and count them — a treat here and a piece of cheese there can add a quarter to the daily calories without anyone noticing. A Labrador Retriever is famously food-motivated, so measured food matters more for this breed than for most — a Labrador Retriever that is fed by eye will eat far more than it needs.
Exercise matters too, at a level that suits the breed: friendly, outgoing, active is how the breed is commonly described, and that shapes what exercise it needs and enjoys. Keep exercise regular and daily, build it up gradually if the Labrador Retriever is overweight, and watch for stiffness or tiredness the next day. The Labrador Retriever food guide gives the calorie tables for this breed by weight and life stage, and the dog calorie calculator works out daily calories for any weight.
When a Labrador Retriever's weight needs a vet
See a vet if the Labrador Retriever is well outside the 25–36 kg range, if it is losing weight without a change in food, if it is lethargic or off its food, if it is a senior that is losing weight, or if it is a young animal that is not growing. A vet check first is sensible because some medical conditions cause weight change, and those need treating, not just more or less food. Labrador Retrievers may be prone to hip dysplasia and ear infections, which are worth knowing about so you can ask your vet about early signs rather than discovering them late.
At the vet, expect a weigh-in, a body condition score, and questions about food, treats, exercise, and other pets in the house. The vet may also check the teeth, because dental pain is a common cause of weight loss, and may run a blood test if the weight change is unexplained. Do not try to put weight on a Labrador Retriever or take weight off a Labrador Retriever with a crash diet or a sudden large increase in food — both are risky, and both need a plan set with a vet. The how to help a dog lose weight safely guide and the how to help a dog gain weight safely guide give the safe plans for both directions.
For related reading, see the Labrador Retriever food guide, the Labrador Retriever age guide, the Labrador Retriever lifespan guide, the dog body condition score chart, the how to weigh your dog at home guide, the dog ideal weight calculator.
Frequently asked questions
How much should a Labrador Retriever weigh?
A typical adult Labrador Retriever weighs 25–36 kg (55.1–79.4 lb). At the middle of that range, about 30.5 kg, a typical neutered adult needs about 1455 calories a day. Within the range, the right weight is the one where the ribs are easy to feel, the waist is visible from above, and the dog moves well.
How do I know if my Labrador Retriever is overweight?
Feel the ribs — you should feel them easily under a thin layer of fat — look for a waist from above, and look for a tummy tuck from the side. If you cannot feel the ribs and there is no waist, the Labrador Retriever is carrying too much weight. Weigh monthly and check the body condition score, where 4 to 5 is ideal.
How many calories does a Labrador Retriever need?
A typical neutered adult at the middle of the range, about 30.5 kg, needs about 1455 calories a day. An intact adult needs about 10 to 20% more, a very active Labrador Retriever needs more again, and a senior or a Labrador Retriever that needs to lose weight needs less. Adjust by monthly weigh-ins.
How long do Labrador Retrievers live?
A typical lifespan for a Labrador Retriever is 10–12 years. That is a range, not a promise — genetics, weight, diet, exercise, and veterinary care all move an individual dog within its range or beyond it. The Labrador Retriever lifespan guide covers what affects it and how to help a Labrador Retriever live longer.
How much should a Labrador Retriever puppy weigh?
As a very rough guide, a puppy's weight as a share of its expected adult weight of 25–36 kg is about a fifth to a quarter at 8 weeks, about half to two-thirds at 6 months, and about four-fifths or more at 12 months. Use the puppy weight chart by age guide for the full shares, and ask your vet to check growth rather than changing food on your own.
When should a Labrador Retriever see a vet about weight?
See a vet if the Labrador Retriever is well outside the 25–36 kg range, if it is losing weight without a change in food, if it is lethargic or off its food, if it is a senior that is losing weight, or if it is a young animal that is not growing. Bring the weight record and the food details.
Results on this page are estimates for general information only and are not veterinary advice. If your pet is ill, underweight, overweight, pregnant, or has a health condition, consult your veterinarian before changing diet or care.