A giraffe can be described as 800 kilograms, 1,200 kilograms or nearly 1,360 kilograms without any arithmetic being wrong. The problem begins when “female average”, “male average” and “largest animal in one sample” lose their labels. A useful answer therefore starts with sex and age, then keeps the kind of measurement attached to the number.
How much does a giraffe weigh?
For a quick adult reference, the 2025 Association of Zoos and Aquariums care manual gives males as 1,200 kilograms (2,646 pounds) and females as 800 kilograms (1,760 pounds). The manual calls these averages and cites Shorrocks’ 2016 giraffe reference book. It does not present them as the result of one new, population-wide weighing study.
For newborns, the same manual gives a typical 67–77 kilograms (148–170 pounds) and a wider cited range of 40–87 kilograms (88–192 pounds). Read the AZA Giraffe Care Manual for the original labels. For birth, standing, nursing and early development, see our baby giraffe guide.
Weight is only one dimension of size. For total standing height, shoulder height and the difference between a reference figure and a documented height record, use the giraffe height guide.
| Giraffe reference or sample | Mass in kilograms | Mass in pounds | What the figure actually describes |
|---|---|---|---|
| Adult male, AZA manual | 1,200 kg | 2,646 lb | Rounded reference average cited to Shorrocks (2016), not a universal mean |
| Adult female, AZA manual | 800 kg | 1,760 lb | Rounded reference average from the same compilation |
| Newborn, AZA manual | Typically 67–77 kg; cited range 40–87 kg | Typically 148–170 lb; cited range 88–192 lb | Clinical reference figures, not measurements of every birth |
| Males, 2017 Zimbabwe study | 177–1,358 kg | 390–2,994 lb | Directly weighed mixed-age sample, n=30 |
| Females, 2017 Zimbabwe study | 141–1,056 kg | 311–2,328 lb | Directly weighed mixed-age sample, n=30 |
| Young males, 2021 Namibia study | Mean 691.1 kg; range 562.3–927.1 kg | Mean 1,524 lb; range 1,240–2,044 lb | Post-bleeding dead weight, n=8; whole analysed sample averaged about 3.7 years |
| Young females, 2021 Namibia study | Mean 636.5 kg; range 508.4–747.5 kg | Mean 1,403 lb; range 1,121–1,648 lb | Post-bleeding dead weight, n=7; whole analysed sample averaged about 3.7 years |
This is an original comparison of unlike but clearly labelled evidence. It is not a synthetic “normal range”. The AZA pounds are reproduced as published. The study values were converted using the NIST avoirdupois-pound factor and rounded to the nearest whole pound; changing units does not make the biological evidence more precise.
How to read the table without inventing an average
Choose the row that answers the question you actually have. For a general adult description, the first two rows are the clearest shorthand. For a newborn, use the calf row. For a discussion of methods or variation, use a study row and retain its place, age mix and sample size.
Do not average all seven rows. They overlap, include different life stages and were produced for different purposes. Nor should the two largest endpoints be promoted to species records. A sample maximum means only that no heavier individual occurred in that particular sample.
Why do giraffe weight figures disagree?
The word attached to a number often matters more than another decimal place. An average summarizes a defined group. A range gives the smallest and largest values within a group. Up to signals an upper reference, but may not reveal the population or method behind it. A record requires evidence about an identified individual and a verification rule.
San Diego Zoo Wildlife Alliance, for example, lists females up to 680 kg (1,500 lb) and males up to 1,360 kg (3,000 lb) on its giraffe reference page. Its newborn entry is 45–100 kg (100–220 lb). The page does not display a sample size or weighing method beside those figures.
The female “up to” value is lower than the AZA manual’s female average. That is a warning against treating two institutional summaries as parts of one dataset. It does not prove that either source measured the same population incorrectly, and it certainly does not establish 680 kg as a biological ceiling for females.
This is why a clean-looking combined claim—“all adult giraffes weigh 680 to 1,360 kg”—would be less defensible than either source on its own. It would silently turn source conventions into a new range that nobody measured.
How do age and sex change the answer?
Giraffes do not step from newborn size to adult size on one fixed birthday. The AZA manual says they mature at around four years, sometimes breed earlier, and may continue gaining height and body mass until age ten or eleven. Growth stage therefore belongs beside sex in any comparison.
A calf at the low end of a birth interval is not necessarily evidence for the adult size it will reach. A “baby” without an age is also too vague for a precise number: a just-born calf and an animal many months into its first year are both young but not interchangeable. The giraffe pregnancy guide keeps gestation, birth and reproductive milestones separate.
Adult males are generally heavier than adult females. Size differences develop with age alongside changes in proportions and the male skull. Our ossicone guide explains why the head of a mature bull can look more massive without turning that appearance into a whole-body scale reading.
The 2021 Namibian study did not find a statistically significant difference between the mean dead weights of its males and females. That result does not overturn adult sexual dimorphism: the analysed animals were young, averaged about 3.7 years, and had not reached their growth plateau. The authors themselves identify age as a likely reason their sex comparison was limited.
What do direct giraffe measurements reveal?
A 2017 study provides a rare transparent span. Researchers used 60 giraffes—30 males and 30 females—culled in south-eastern Zimbabwe. The sample included young, middle-aged and old animals. Male mass ranged from 177 to 1,358 kg; female mass from 141 to 1,056 kg. The paper’s all-animal mean was 775 kg.
That 775 kg is a correct description of the study sample and a poor answer to “what does an adult giraffe weigh?” The age mix pulls young and mature animals into one mean. The sex-specific ranges do the same. The value of the 2017 primary study is not a new universal number; it is the unusually clear account of who was measured and how.
The 2021 study asked another question in another population. It began with 16 Angolan giraffes from Mount Etjo Game Farm in Namibia, removed one approximately nine-year-old female from the analysis, and retained eight males and seven females mostly estimated at 2.5–6 years. Mean dead weight was 691.1 kg for males and 636.5 kg for females.
Those animals had been bled before weighing, so the authors defined dead weight as live weight less blood loss. Read the open primary paper. Its small, young sample from one managed property should not be relabelled as the wild adult norm, but it usefully shows why age and method cannot be footnotes.
Taken together, the studies show variation rather than supply a master range. The Zimbabwe paper includes the heaviest directly measured individual in this evidence pack—a 1,358 kg adult male—but that remains a sample endpoint, not a world record.
How do researchers weigh a giraffe?
For managed giraffes, the AZA manual recommends accurate regular weighing and identifies a scale suitable for large ungulates as part of veterinary equipment. Repeated measurements of the same individual are useful because a trend can reveal change that one isolated number cannot. Diet, health, pregnancy and age still affect how the trend should be interpreted; the giraffe diet guide explains why feeding is more than a daily pile of leaves.
The Zimbabwe researchers faced a different practical problem: their suspended spring balance could hold 200 kg, far less than a large intact giraffe. They weighed the animal’s parts to the nearest kilogram and added them to determine total mass. That is direct measurement, but it is obviously post-mortem and cannot be repeated on a living animal.
The Namibian team obtained dead weight after bleeding, then made linear measurements with the animal on its side; girth was measured while it was suspended. A number from that protocol should not be compared casually with a living scale weight, even when both are printed in kilograms.
Direct weight, estimated weight and body condition are different
A scale produces a direct mass reading, subject to the scale and procedure. A model may estimate mass from measurements such as girth, but the estimate inherits the population and error of the equation used. A photograph supplies neither unless it is part of a calibrated, validated method.
Body-condition scoring has another purpose. It evaluates visible or palpable anatomical areas to track fat and muscle condition. The AZA manual describes it as subjective and recommends using it with body weights or when regular weights are difficult. A lean-looking 800 kg giraffe and a better-conditioned 800 kg giraffe can share a scale reading while prompting different health questions. Our photographic body-condition guide explains that separate assessment.
The relevant nutrition and body-condition evidence area leads into the research. Mass is important to care because it can change, not because every healthy animal should be forced toward one species-wide target.
Can height or a photograph reveal exact weight?
No. Taller animals often have more mass, and the Zimbabwe study found body dimensions changing with body mass. But one visible dimension cannot recover age, sex, girth, body condition or the statistical relationship for the relevant population.
Perspective makes an uncalibrated image worse. The closest animal looks larger, posture changes total height, and coat edges can obscure body contours.
Height also creates physiological questions that mass alone cannot answer. The heart and blood-pressure guide explains how circulation copes with an elevated brain, while the giraffe facts guide provides a broader route through anatomy, behaviour and conservation.
What to remember
If you need one clean adult reference, use about 1,200 kg (2,646 lb) for a male and 800 kg (1,760 lb) for a female, labelled as the rounded averages in the 2025 AZA manual. For a newborn, use 67–77 kg (148–170 lb) as that manual’s typical reference.
If accuracy matters beyond shorthand, keep four labels with the number: sex, age or life stage, source population, and method. Add the statistic too—average, range, “up to” or individual measurement. That small discipline prevents a study endpoint from becoming a record and a mixed-age mean from becoming “the average giraffe”.
Frequently asked questions
How many pounds does a giraffe weigh?
The AZA manual’s rounded adult references are 2,646 lb for males and 1,760 lb for females. They are sex-specific averages cited to a reference book, not weights every adult will match.
How much does a baby giraffe weigh?
The 2025 AZA manual gives 148–170 lb (67–77 kg) as typical at birth, with a cited range of 88–192 lb (40–87 kg). A particular zoo birth may fall elsewhere or be weighed at a different time, so label an individual report by date and age.
Do male giraffes weigh more than females?
Adult males are generally heavier. Young animals do not necessarily show the full adult difference: in the small 2021 Namibian sample, the male and female mean dead weights were not significantly different, and the authors noted that the animals had not reached their growth plateau.
What is the heaviest giraffe ever recorded?
This evidence review does not establish a verified world record. The heaviest giraffe in the checked direct-measurement studies was a 1,358 kg adult male in the 2017 Zimbabwe sample. Calling that individual the heaviest giraffe ever would go beyond the study.
Sources
The adult and newborn reference values come from the 2025 AZA care manual; the alternative “up to” figures come from San Diego Zoo Wildlife Alliance. Direct measurements come from Mitchell and colleagues’ 2017 Zimbabwe study and Silberbauer, Strydom and Hoffman’s 2021 Namibia study. Links appear beside the claims they support.
Study figures were independently converted with the NIST avoirdupois-pound factor and rounded to the nearest whole pound. Source-supplied AZA kg/lb pairs are reproduced as printed. Last source review: 7 September 2026.
