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Estimates only. Not veterinary advice.
Updated weekly
Use this Labrador Retriever weight chart in kg and lb by age to compare male and female puppy growth, 5-month and 6-month checkpoints, adult size, and ideal-weight context. Labrador puppies often grow quickly through the first year, but the healthiest trend is steady, lean progress beside rib feel, waist, activity, measured meals, and appetite control.
Labs often look hungry even when their calories are right, so the scale, waist, and rib feel matter more than appetite.
Overview
Adult range
25-36 kg
55.1-79.4 lb
Size class
Large breed
Matched size chart
Growth pace
Slower
Typical for this breed size
Check-in cadence
Weekly to monthly
Suggested rhythm
<16 w weekly | 16-32 w biweekly | 32 w+ monthly
Quick answers
Use these answers for the most common Labrador weight chart, kg, growth chart, size chart, male/female, puppy, calculator, and ideal-weight questions before reading the full table.
Adult range
AKC lists adult male Labrador Retrievers at 65-80 lb and adult females at 55-70 lb. A Lab near either end can be healthy if the ribs are easy to feel, the waist is present, and movement stays comfortable.
kg chart
In metric terms, many adult female Labradors are around 24.9-31.8 kg and many adult males are around 29.5-36.3 kg. Puppy checkpoints should be read by age and sex, not against one adult number.
6 months
Many 6-month Labs fall around 36-58 lb (16.3-26.3 kg), with males often heavier than females. Look at the trend across several weigh-ins because growth, exercise, treats, and line type can move one checkpoint up or down.
Full grown
Many Labradors are close to adult height around the first birthday, then keep adding chest, muscle, and adult condition through about 18-24 months. Late filling out should feel firm, not padded.
80-90 lb check
Eighty pounds can fit a healthy adult male at the top of the official range. A 90 lb Labrador is usually above the standard range, so check height, ribs, waist, tail-base padding, stamina, and your vet's body-condition score.
Weight by age
This Labrador Retriever growth chart shows common male and female puppy checkpoints in both pounds and kilograms. It is built for Labrador weight chart kg searches, but the number still needs body-condition context.
Labrador puppies usually move through a fast early growth phase, then continue filling out into a solid sporting-dog frame. Males often finish heavier than females, but both should stay lean enough that the ribs can be felt without digging.
Use this chart as a planning range rather than a target to beat. A Labrador that is slightly below the midpoint with good muscle, energy, and a visible waist is usually in a better place than one racing upward because food rewards are too generous.
| Age | Male Weight (lb and kg) | Female Weight (lb and kg) |
|---|---|---|
| 2 months | 14-20 lb (6.4-9.1 kg) | 12-18 lb (5.4-8.2 kg) |
| 3 months | 22-30 lb (10-13.6 kg) | 18-26 lb (8.2-11.8 kg) |
| 4 months | 30-40 lb (13.6-18.1 kg) | 25-35 lb (11.3-15.9 kg) |
| 5 months | 38-50 lb (17.2-22.7 kg) | 30-42 lb (13.6-19.1 kg) |
| 6 months | 45-58 lb (20.4-26.3 kg) | 36-50 lb (16.3-22.7 kg) |
| 8 months | 55-68 lb (24.9-30.8 kg) | 46-58 lb (20.9-26.3 kg) |
| 10 months | 63-75 lb (28.6-34 kg) | 52-64 lb (23.6-29 kg) |
| 12 months | 65-80 lb (29.5-36.3 kg) | 55-70 lb (24.9-31.8 kg) |
| 18 months | 65-80 lb (29.5-36.3 kg) | 55-70 lb (24.9-31.8 kg) |
Popular checkpoints
These quick answers cover the month-old, adult-weight, and full-grown size lookups owners most often compare after opening the chart, with values shown in both kg and lb whenever that context is available.
At around 12 weeks (3 months), male Labrador Retriever puppies are often around 22-30 lb (10-13.6 kg), while females are often around 18-26 lb (8.2-11.8 kg). Use that checkpoint as a guide and focus on a steady trend over time.
At around 5 months, male Labrador Retriever puppies are often around 38-50 lb (17.2-22.7 kg), while females are often around 30-42 lb (13.6-19.1 kg). Use that checkpoint as a guide and focus on a steady trend over time.
At around 8 months, male Labrador Retriever puppies are often around 55-68 lb (24.9-30.8 kg), while females are often around 46-58 lb (20.9-26.3 kg). Use that checkpoint as a guide and focus on a steady trend over time.
Most healthy adult Labrador Retriever dogs land around 25-36 kg (55.1-79.4 lb), though frame, sex, and routine still create normal variation.
Labrador Retriever dogs are usually close to full height by around 12 to 18 months, but healthy adult muscle, chest depth, and overall frame can keep filling in after the fastest puppy-growth stage.
Many Labs have reached most of their height by this point, although they may still look narrow, young, and uneven through the shoulders.
Maturity
Most Labradors are close to adult height around the first birthday, but the body still changes after that as the chest, shoulders, and muscle tone mature. Owners using a Labrador size chart by age should read height, weight, sex, and condition together.
Many Labs have reached most of their height by this point, although they may still look narrow, young, and uneven through the shoulders.
The chest deepens and the body begins to look more balanced. This is the stage where extra calories can turn into fat instead of useful growth.
Active adult Labs may continue adding lean muscle with regular exercise, especially if they swim, retrieve, hike, or train often.
Adult Labradors can gain quickly when treats, table scraps, or fewer walks become normal, so maintenance habits matter as much as puppy growth.
Key takeaway
A Labrador can act hungry even when meals are correct. Let body condition, repeated weigh-ins, and your vet's guidance shape portions.
Growth check
The best Labrador growth trend combines steady weight gain with a lean waist, normal stamina, and comfortable movement.
Trend note
For Labs, small food extras add up quickly. A weekly hands-on body check catches drift before the chart looks dramatic.
Weight factors
A Labrador's chart position is shaped by frame, sex, calorie control, and how consistently the dog gets to move.
Males usually finish heavier, while females often stay closer to the lower half of the Labrador range.
Field-line Labs may look leaner and more athletic, while show-line Labs often carry a broader head, chest, and body.
Food rewards are useful for training, but they must be counted because Labs can collect extra calories from every person in the house.
Research has linked a POMC deletion in some Labrador Retrievers with greater food motivation and body weight. It is not a diagnosis for every Lab, but it supports using measured portions instead of appetite as the guide.
Regular controlled exercise helps build muscle, but sudden long sessions after inactive weeks can leave a growing dog sore.
Joint discomfort, ear infections, or exercise-related weakness can reduce activity and indirectly affect weight trends.
Breed snapshot
Temperament profile
Labrador Retriever dogs are usually social and active, and their larger frame is easiest to read when meals, activity, and weigh-ins stay steady.
Daily rhythm
Consistency, activity, and portion awareness help keep growth on a steady path.
Weight-tracking note
Extra treats and quick eating can push weight up before the frame is finished
Use this page with
Calculator
Open the homepage calculator with Labrador Retriever selected and compare the live result with this guide.
Open calculatorSize chart
Use the Large size chart to compare the broader checkpoint range behind this breed guide.
Open size chartGuide
Review the core framework for trend tracking, body condition, and using ranges responsibly.
Open guideRelated guides
Age guide
Compare Labrador Retriever checkpoints with month-by-month puppy growth context before reading the breed graph.
Open age guideCondition
Use rib, waist, and tuck checks to decide whether Labrador Retriever's number looks healthy in real life.
Open condition guideLarge growth
Use slow-growth context for Labrador Retriever's frame, food routine, and exercise plan.
Open large guideMaturity
Compare Large growth timing with the point when height, muscle, and fill-out usually slow.
Open timing guideGrowth
Growth graph
Male and female Labrador Retriever dogs grow at different rates through the first year.
Chart span
1-12 months
Breed-specific monthly view
Male at 12 months
35.2 kg
77.5 lb
Female at 12 months
28.4 kg
62.5 lb
Re-check cadence
2-4 weeks
Trend beats one weigh-in
This breed-specific chart tracks the average monthly line for male and female Labrador Retriever puppies from 1-12 months. Steady progress matters more than one weigh-in.
Calculator bridge
Open the homepage calculator with Labrador Retriever selected, add the latest weigh-in, then compare the result back against this guide.
What this means
When to re-check
Re-check a Labrador every 2 to 3 weeks during active growth, then monthly once weight, waist, and exercise routine are stable.
Next action
Most useful after a fresh weigh-in, then compare the result back against this breed graph and the matching size chart.
Stages
Labradors grow from soft, fast-changing puppies into sturdy working companions. Each stage needs portion control, measured activity, and habit-building.
Birth - 8 weeks
Puppies depend on the mother and breeder routine. By the time they leave for home, the focus is stable food, warmth, and early handling.
2 - 4 months
Growth is obvious week to week. Feed a large-breed puppy formula, keep treats tiny, and teach calm handling before size catches up.
4 - 7 months
Energy rises and the body may look uneven. Use walks, short retrieve games, and training breaks instead of hard repetitive jumping.
7 - 12 months
Weight gain slows compared with the earliest months. This is where overfeeding often shows as a softer waist rather than useful growth.
12 - 18 months
Many Labs move toward adult food around this window with veterinary guidance. The goal is maintaining lean condition as activity changes.
18+ months
The adult routine should balance measured meals, regular exercise, brushing, and ear checks after water exposure.
Feeding rules
Use a kitchen scale or consistent measuring method, because a Labrador's appetite is not a reliable signal of calorie need.
Choose a growth diet appropriate for large-breed puppies through the first year unless your veterinarian recommends a different timeline.
Food is a great training tool for Labs, but reward calories should come out of the daily food budget.
A slow feeder or food puzzle can help Labs that gulp meals and may reduce stomach upset from eating too quickly.
Keep water available during activity, then dry the coat and ears after swimming or bathing to reduce moisture-related problems.
Transition over several days and watch stool quality, appetite, skin, and body condition before making another diet change.
Feeding
The right Labrador portion depends on age, body condition, activity, and food calorie density. Start with the food label, then adjust using the waist, rib feel, and repeated weigh-ins.
Puppy rhythm
Young Labrador puppies usually do best with multiple smaller meals. As they approach adulthood, many transition to two measured meals daily.
Portion anchor
A Lab expected to finish near 55 lb should not be fed like one expected to finish near 80 lb. Frame and condition matter more than breed average alone.
Adjustment rule
If the waist softens or ribs become harder to feel, reduce extras first and re-check in two weeks before making a large food change.
Daily life
Good fit for
Things to watch
Care
Feed measured large-breed puppy food through the first year, then transition gradually once growth and your vet's advice line up.
Use regular walks, retrieving, swimming, and training games, but avoid turning every puppy session into a hard workout.
Brush the water-repellent double coat often, especially during shedding seasons, and dry the coat and ears after water play.
Labs usually train happily for food and play, so keep rewards small, frequent, and counted in the daily calorie plan.
Warning signs
Labradors can carry extra weight quietly because they are sturdy and enthusiastic. Check both the scale and the body shape.
Similar breeds
Next step
Use live age and weight inputs, then compare the result with this breed guide and its matching size chart.
FAQ
This page combines official Labrador size guidance, parent-club health context, veterinary nutrition guidance, body-condition principles, and peer-reviewed appetite research. It is a planning guide, not a diagnosis.
Estimates only. Not veterinary advice.