Great Danes reach about 50% of adult weight at 6 months and are full grown at about 18 months (AKC). Adult males weigh 63.5–79.4 kg (140–175 lb) and females 49.9–63.5 kg (110–140 lb) (AKC); UK pet Danes are lighter, with medians of 64.9 kg and 56.0 kg (O'Neill 2026). These are typical ranges, not targets.
General information only. Weights here are typical ranges, not targets. Many healthy Great Danes are lighter or heavier — your vet judges growth by body condition, not the scale alone.
Great Dane weight chart (kg)
This Great Dane weight chart in kg and lb shows typical Great Dane weight by age for male and female puppies from 1 to 18 months, plus adult weight. From 6 months, each range applies the AKC's growth chart for dogs over 100 lb — 50% of adult size at 6 months, 65% at 9, 80% at 12, 90% at 15 and 100% at 18 — to the AKC adult weights of 140–175 lb (63.5–79.4 kg) for males and 110–140 lb (49.9–63.5 kg) for females. Months between the AKC points are filled in on a straight line.
| Age | Male kg | Male lb | Female kg | Female lb | Basis |
|---|---|---|---|---|---|
| 1 month | ~3.6 | ~7.9 | ~2.3 | ~5.1 | Pet-site average |
| 2 months | ~10.4 | ~22.9 | ~8.2 | ~18.1 | Pet-site average |
| 3 months | ~15.9 | ~35.1 | ~11.3 | ~24.9 | Pet-site average |
| 4 months | ~24.9 | ~54.9 | ~20.4 | ~45 | Pet-site average |
| 5 months | ~31.8 | ~70.1 | ~27.2 | ~60 | Pet-site average |
| 6 months | 31.8–39.7 | 70.1–87.5 | 24.9–31.8 | 54.9–70.1 | AKC chart: 50% |
| 7 months | 34.9–43.7 | 76.9–96.3 | 27.4–34.9 | 60.4–76.9 | Between AKC points |
| 8 months | 38.1–47.6 | 84–104.9 | 29.9–38.1 | 65.9–84 | Between AKC points |
| 9 months | 41.3–51.6 | 91.1–113.8 | 32.4–41.3 | 71.4–91.1 | AKC chart: 65% |
| 10 months | 44.5–55.6 | 98.1–122.6 | 34.9–44.5 | 76.9–98.1 | Between AKC points |
| 11 months | 47.6–59.5 | 104.9–131.2 | 37.4–47.6 | 82.5–104.9 | Between AKC points |
| 12 months | 50.8–63.5 | 112–140 | 39.9–50.8 | 88–112 | AKC chart: 80% |
| 13 months | 52.9–66.1 | 116.6–145.7 | 41.6–52.9 | 91.7–116.6 | Between AKC points |
| 14 months | 55–68.8 | 121.3–151.7 | 43.2–55 | 95.2–121.3 | Between AKC points |
| 15 months | 57.2–71.4 | 126.1–157.4 | 44.9–57.2 | 99–126.1 | AKC chart: 90% |
| 16 months | 59.3–74.1 | 130.7–163.4 | 46.6–59.3 | 102.7–130.7 | Between AKC points |
| 17 months | 61.4–76.7 | 135.4–169.1 | 48.2–61.4 | 106.3–135.4 | Between AKC points |
| 18 months | 63.5–79.4 | 140–175 | 49.9–63.5 | 110–140 | AKC chart: 100% |
| Adult (AKC) | 63.5–79.4 | 140–175 | 49.9–63.5 | 110–140 | AKC breed page |
Before 6 months the AKC gives no percentages, and we found no study or kennel-club chart of Great Dane puppy weights with a range. The values marked "~" are single averages from a pet-care site (Canine Journal), shown so you have something to compare against — they are not a range, and a healthy puppy can sit well above or below them. Reassuringly, that site's averages for 6–12 months fall inside our AKC-based ranges.
Great Dane puppy weight chart: month by month
The Great Dane puppy weight chart moves faster than almost any other breed's. A male that weighs about 10.4 kg at 2 months is typically 31.8–39.7 kg four months later. For young puppies weighed by the week, here are the pet-site averages converted to weeks:
| Age | In months | Male average | Female average |
|---|---|---|---|
| 4 weeks | 0.9 months | ~3.6 kg | ~2.3 kg |
| 6 weeks | 1.4 months | ~6.2 kg | ~4.5 kg |
| 8 weeks | 1.8 months | ~9.3 kg | ~7.2 kg |
| 10 weeks | 2.3 months | ~12.1 kg | ~9.1 kg |
| 12 weeks | 2.8 months | ~14.6 kg | ~10.6 kg |
| 14 weeks | 3.2 months | ~17.9 kg | ~13.3 kg |
| 16 weeks | 3.7 months | ~22 kg | ~17.5 kg |
| 20 weeks | 4.6 months | ~29 kg | ~24.5 kg |
| 24 weeks | 5.5 months | ~34.1 kg | ~28.4 kg |
- 1–3 months: weaning, then the steepest gains of a Dane's life. Weigh weekly; a steady upward line matters more than any single number.
- 4–6 months: growth spurts; legs lengthen quickly and puppies can look gangly or out of proportion.
- 6–12 months: the AKC-based ranges begin. Males pull clearly ahead of females, by about 8–9 kg at the top of the range at 12 months.
- 12–18 months: height is nearly complete and weight creeps up to adult levels as the chest and muscles fill out.
Weight is only half the story for a giant puppy; what it eats matters as much. Our Great Dane feeding chart gives daily calories and meals by age.
When is a Great Dane full grown?
A Great Dane is usually full grown at about 18 months. The AKC quotes veterinarian Dr. Jerry Klein: "Giant breed puppies grow until they are 12 to 18 months old", and its growth chart for dogs over 100 lb reaches 100% of adult size at 18 months. Most height arrives first; the last months are mostly filling out.
| Typical timing | Source | |
|---|---|---|
| Height | Most height in place by 12–18 months | AKC: giant breed puppies grow until 12 to 18 months |
| Weight | About 80% of adult weight at 12 months, 90% at 15, 100% at 18 | AKC growth chart (dogs over 100 lb) |
| Food | Switch to adult food at about 12–14 months | AKC puppy feeding guidance |
| Life stage | Counted as a puppy until 21 months | PetYearsCalc giant-dog stage boundary (1.75 years) |
Some very large dogs keep filling out a little longer — the AKC notes that very large breeds like Mastiffs may not reach full size until 24 months — so don't be surprised if a big male adds a few kilos in his second year. A Dane that keeps gaining after 2 years is more likely gaining fat than frame.
How big will my Great Dane get?
The best single answer is the AKC adult range for your dog's sex: males 140–175 lb (63.5–79.4 kg) and 30–32 in tall; females 110–140 lb (49.9–63.5 kg) and 28–30 in tall. In real pet populations Danes tend to be lighter than the show-dog range: the median adult weight of UK Great Danes in vet records was 64.9 kg for males and 56.0 kg for females, and 60.5 kg overall (O'Neill 2026). That average Great Dane weight is the figure to keep in mind if your adult sits at the lower end of the AKC range.
To estimate your own puppy's adult weight, use the AKC percentages in reverse — but only as a rough guide:
- At 6 months, multiply the weight by about 2 (50% of adult size).
- At 9 months, divide by 0.65 (65%).
- At 12 months, divide by 0.8 (80%).
So a 32 kg male at 6 months might reach about 64 kg as an adult. The parents' size is an even better predictor: ask the breeder what the mother and father weigh. Male vs female differences in size and health are covered in more depth on our male vs female Great Dane page.
Is my Great Dane underweight or overweight?
The scale tells you where your dog sits on the chart; your hands tell you whether that weight is healthy. The AKC's advice is to "watch the dog, not the dish": body condition, not the amount eaten, should decide portion sizes, and "a young dog carrying too much weight has an increased risk of orthopedic problems, due to stress on immature joints".
- Ideal: you can feel the ribs easily under a thin layer of fat, see a waist behind the ribs from above, and see the belly tuck up from the side.
- Too thin: ribs, spine and hip bones are easy to see from a distance, with little muscle over them.
- Too heavy: you have to press to find the ribs, there is no waist, and fat sits over the base of the tail.
Overweight or obesity was the second most common problem recorded in UK giant-breed dogs, affecting 8.0% in a single year (O'Neill 2026), and lean feeding from puppyhood is linked to longer, healthier lives (Marcellin-Little 2025). Being a little lean is safer for a growing Dane than being a little heavy. If your puppy is outside the typical range, losing weight, or you aren't sure how to judge body condition, ask your vet to show you — and talk to your vet before making big changes to food.
How this growth checker works
- Age: enter weeks or months (up to 36 months). Weeks are converted at 4.35 weeks per month.
- 6–18 months: the typical range is the AKC percentage for that age (straight-line between the AKC points) × the AKC adult weight range for the sex you choose. From 18 to 36 months you get the adult range only.
- 1–6 months: no sourced range exists, so the tool shows the pet-site average for that age and how far your puppy is from it — with no "below/within/above" verdict.
- Where your Dane sits: below, within or above the range, with a "talk to your vet" note when it's outside.
- Full grown: about 18 months (AKC).
The same weight data feed our feeding chart, so the two pages always agree. Weights from 0.3 to 120 kg are accepted; anything outside is treated as a typing or unit mistake.
Frequently asked questions
How much should a Great Dane weigh at 6 months?
Typically 31.8–39.7 kg for a male and 24.9–31.8 kg for a female — 50% of the AKC adult weight.
How much should a Great Dane weigh at 1 year?
About 50.8–63.5 kg for males and 39.9–50.8 kg for females (80% of adult weight on the AKC chart).
What is the average Great Dane weight?
The AKC range is 140–175 lb for males and 110–140 lb for females. UK pet Danes are lighter: a median of 64.9 kg for males and 56.0 kg for females (O'Neill 2026).
When is a Great Dane full grown?
At about 18 months. Giant breed puppies grow until 12 to 18 months (AKC), with weight still filling out at the end.
How big will my Great Dane get?
Males usually reach 63.5–79.4 kg and 30–32 in, females 49.9–63.5 kg and 28–30 in (AKC). The parents' size is the best guide.
How much does a Great Dane puppy weigh at 8 weeks?
Pet-site averages put males at about 9.3 kg and females about 7.2 kg — single averages, not a sourced range.
Is my Great Dane puppy too skinny?
Check body condition: ribs easy to feel and a visible waist are normal for a lean, growing Dane. Visible hip bones and spine, or weight loss, need a vet check.
Is my Great Dane overweight?
If you have to press to feel the ribs and there's no waist, probably. Extra weight stresses growing joints (AKC) — ask your vet before cutting food.
Do male Great Danes weigh more than females?
Yes — about 30–35 lb more on the AKC figures and about 9 kg more in UK pet dogs. The chart above shows male vs female Great Dane weight month by month.
Why does the chart start its ranges at 6 months?
The AKC growth chart for dogs over 100 lb starts at 6 months, and we found no sourced Great Dane weight range for younger puppies, so earlier months show pet-site averages only.
Can I use this Great Dane growth chart for a mixed breed?
Only as a rough guide. A cross such as a Great Danoodle may stay much smaller than a pure Great Dane.
Typical ranges, not targets. For growth or health worries, talk to your veterinarian.