Height comparison questions, answered

It is free, and there is nothing to sign up for. Every part of it — up to 40 figures on one chart, centimetres, metres and feet-and-inches, the full difference table, percentiles by country, and PNG or SVG export — is open to everyone, with no trial, no paid tier and no watermark.

There is also no app to install. The tool runs in the browser on a phone, tablet or desktop, and a comparison you build is stored in the page address rather than in an account.

Yes. Alongside people you can add any of 13 reference objects — a 203 cm standard door, a kitchen counter, a car, a basketball hoop, up to the Burj Khalifa — or type your own object with its own height and width. The chart rescales so that whatever you add stays visible, and switches to a sideways-scrolling view when a lineup gets wide.

Objects are what turn an abstract number into something you can judge: 203 cm is a figure, but "a head below the door frame" is a picture. There is no animal library yet, so an animal has to go in as a custom object.

Yes, and the figure changes with it. Mark a person as a child and they are drawn with child proportions — a proportionally larger head and shorter legs — rather than as a scaled-down adult, because a shrunken adult silhouette makes a child look far taller than they are.

Percentiles are the one thing we withhold for children. Children are assessed against age-and-sex growth charts, which is a different calculation with a clinical purpose, so the percentile calculator covers adults only rather than returning a number that reads as medical and is not.

Yes. Add an image, type the real height it represents, and it is drawn to scale beside everything else on the chart. It is the quickest way to put yourself next to a celebrity or a doorway without doing any arithmetic.

The image never leaves your device. It is resized in your browser and kept locally, so there is no upload, no server copy and nothing to delete later. The trade-off is that a shared link cannot carry it: anyone opening your link sees a plain block of the same height instead of your photo. See privacy for the detail.

Yes. Export the chart as a PNG or an SVG, or copy it to the clipboard, and use it in a report, slide deck, thumbnail or post. The SVG stays sharp at any size, which is the one to pick for print or for a large screen.

A credit to heightlens.com is appreciated rather than required. If the heights themselves matter to your argument, cite where they came from too — our methodology names every source and says plainly which figures are measured and which are only reported.

Add them. Most height tools stop at two figures, so a four-person lineup has to be built from three separate comparisons; here you keep adding until the chart holds 40, and every pair is worked out at once rather than only the pair you asked about. A four-person lineup answers six questions.

Sort the result tallest first, shortest first or centred, drag it into any order, and tap any figure to make it the reference so the gap from everyone else to it is drawn on the chart. For two heights and no picture, the height difference calculator is faster.

A height comparison puts two or more heights on one shared scale, standing on one shared baseline, so the difference between them can be seen rather than calculated. It usually means two things at once: the picture, and the number underneath it — who is taller, by how much, and by what percentage.

The reason to draw it is that heights are hard to feel as numbers. 178 cm and 186 cm is arithmetic; two figures eight centimetres apart is obvious at a glance. Our comparison tool does both — to-scale silhouettes, every pairwise difference, and where each adult sits in a national distribution — and there are 48 head-to-head comparisons already worked out if you would rather start from one.

4'11" is 149.86 cm, or 1.5 m — 25 cm below the average American man. Among US adults it falls around the 5th percentile for women, meaning roughly 5% of American women are shorter, and below the 1st percentile for men.

It is short by any modern measure, but not a clinical category: definitions of dwarfism start at an adult height of 4'10" (147 cm), so 4'11" sits just above that line. In historical terms it was less remarkable — Queen Victoria is reported at about this height. For a height we have not published a page for, the percentile calculator will place it against any country, and browse by height covers the common ones in detail.

5'5" is 165.1 cm. For a woman in the United States that is modestly above average — about the 71st percentile — and for a man it is clearly below, about the 9th. The everyday version of the answer: a 5'5" person stands around 38 cm below the top of a standard 203 cm door frame.

People you have probably seen are a better yardstick than a number. Emma Watson, Daniel Radcliffe and Selena Gomez are all within a centimetre of 5'5". The full 5'5" page has the percentile in 55 countries and everyone we hold at that height.

Exactly 9 inches apart — 22.9 cm. 5'7" is 170.18 cm and 6'4" is 193.04 cm. To put that gap in context, it is wider than the 14 cm between the average American man and the average American woman — not a difference anyone needs a tape measure to notice.

The percentiles sit almost at opposite ends for men: 5'7" is around the 25th percentile among US men, while 6'4" is the 99th. For women the same two heights read as the 90th and far beyond the 99th. Our pages go deeper on 5'7", and the height difference calculator will draw this or any other pair to scale with the percentage gap.

In the United States, 175.3 cm (5′ 9″) for men and 161.3 cm (5′ 3.5″) for women, measured barefoot by the CDC in adults aged 20 and over. Worldwide the means are lower — about 171 cm and 159.5 cm — because the global figure includes a great many countries shorter than the US.

No single average travels well. Across the 55 countries we hold, male means run from 183.8 cm in the Netherlands to 160.1 cm in Timor-Leste — a 23.7 cm spread that is wider than the gap between the sexes in most individual countries. See average height by country.

About 176.9 cm (5′ 9.5″) for young American men and 163.3 cm (5′ 4.5″) for young American women. That figure is unusually clean for a generational claim: the series behind our country table measures 19-year-olds as of 2019 — people born around 2000, the middle of Gen Z — rather than averaging everyone alive.

It is about 1.6 cm above the CDC's all-adult mean for men, and most of that is not growth. Older cohorts were born shorter and lose height with age, which pulls an all-ages average down. US height gains had largely flattened for people born from the 1960s onward, even as the Netherlands and South Korea kept rising, so Gen Z is roughly as tall as the millennials before them rather than a step up. Younger Gen Z, still in their teens, have not finished growing. Sources: NCD-RisC (Lancet, 2020) and NCD-RisC (eLife, 2016).

There is no single attractive height, and the research does not claim one — it measures preferences, which are relative. In Stulp, Buunk & Pollet (2013), women stated a preferred partner gap of about 13.45 cm, were most satisfied when their partner was taller still, and set a ceiling of roughly 25 cm, a "tall but not too tall" pattern. Men's preferences were weaker and more varied.

Applied to a real population, that preference is far less demanding than the internet suggests. Add 13.45 cm to the average American woman and you get 174.8 cm — within a centimetre of the average American man at 175.3 cm. The familiar six-foot bar, by contrast, is the 84th percentile: only about 16% of American men reach it, so it excludes most men by construction. Preferences also scale with the woman's own height, which is why a fixed number was never the right answer. See where any height actually lands with the percentile calculator.

There is no official line, so the honest answer is a percentile. Among US adults, 5'6" is about the 15th percentile for men and 5'1" about the 18th for women — the region where most people stop saying "below average" and start saying "short". Below roughly the 3rd percentile — around 5'3" for men and 4'10" for women — it becomes genuinely uncommon.

Those lines move as soon as the country does. 5'7" is unremarkable for a man in Timor-Leste and noticeably short in the Netherlands, with no change in the man. That is the single most useful thing to understand about height statistics, and it is why every page here states the reference group next to the number.

Use something in the photo whose height you already know, and scale from it. Measure the reference object in pixels, measure the person in pixels, then: person's height = reference height × (person's pixels ÷ reference pixels). If a 203 cm door frame measures 900 px and the person measures 790 px, the estimate is 178.2 cm.

Four things decide whether that number is worth anything. The reference has to be at the same distance from the camera as the person, or perspective inflates whichever is nearer. The camera should be level and around the middle of the subject's height, because shooting up or down compresses the figure. Both feet and the top of the head need to be visible and the person standing straight. And good references are the boring ones: a door (203 cm), a kitchen counter (91 cm), a light switch, a known doorway in the same frame.

Treat the result as a range, not a figure. Even careful work from a good photo lands within a few centimetres at best, which is why forensic photogrammetry reports a band rather than a single height. If you want to sanity-check an estimate visually, put it on the comparison chart next to a known height and see whether it looks right.

No, and it does not pretend to. There is no pixel measurement and no AI guess: you add a photo, type the height you believe it represents, and it is drawn to scale next to the other figures. The work of deciding the height stays with you.

That is still the useful half. It turns a claim into something testable — put the claimed height on the chart beside a 203 cm door, the average man for the country, or a celebrity whose height is actually measured, and a wrong claim usually stops looking plausible. Photos are processed in your browser and never uploaded.

Because a photograph records a projection, not a measurement. Whoever stands closer to the lens is drawn larger; a camera held above or below the subjects tips both figures; a wide lens stretches whatever sits near the frame edge; and a slope, a step or a kerb moves a whole person without anyone noticing. Posture adds more: people stand taller when they know they are being photographed.

Then there is everything on top of the person. Shoes typically add 2–4 cm and lifts can add more, hair adds visible height that is not height, and everyone is up to 2 cm shorter by the evening than when they woke up. Put together, that is an inch or two of noise before any of the camera geometry — which is more than the difference being argued about in most celebrity height debates.

Queen Victoria is reported at 4'11" — about 149.9 cm — though accounts vary from 4'10" to a shade under 5'0", and no measured record of her height survives; royal heights were not systematically recorded. The nearest thing to evidence is contemporary description: a visitor to an 1846 reception called her a "lady-like petite woman" whose height "does not exceed five feet".

Against modern figures she was very short — roughly 14 cm below young British women today (163.9 cm), and around the 5th percentile of US women. Against her own century the gap narrows, because Victorians of both sexes were shorter than Britons are now. A widely repeated figure, no measurement, and a verdict that changes with the century you compare against: that combination is exactly what produced the Napoleon myth.

5'8" (about 172.7 cm) is the figure to use, because it is the one he has given himself. It puts him a little below the US male average of 175.3 cm — around the 37th percentile — rather than anywhere near the heights the running joke claims.

Published listings genuinely disagree: UFC material, IMDb and Wikipedia have at various points carried figures from 5'6" to 5'9", and no verified measurement is public. He is a textbook case of the weakest evidence tier we label on this site, and of why standing beside heavyweight fighters on camera is not a measurement. See celebrity heights for the people we do hold, each with its source stated.

Because almost none of those numbers are measurements. A studio bio, a sports-league listing, a passport, a talent agency and the person themselves are five different sources with five different incentives, and shoes, time of day, rounding and flattery each move the figure a centimetre or two. The NBA is the clearest example: it only required barefoot measurement from the 2019–20 season, so every listing before then may include shoes.

We handle that by labelling the evidence instead of hiding it. Measured means a verified measurement, such as a Guinness World Records entry; officially listed means a body like a league publishes it; commonly reported means public sources simply repeat it. Each of the 69 celebrity pages states which tier applies, and the methodology explains how we choose between conflicting figures.

On average yes, though by less than folklore suggests and very unevenly. Across the birth cohorts from 1896 to 1996, NCD-RisC (eLife, 2016) found the largest national gains were about 20 cm for South Korean women and 17 cm for Iranian men, while parts of South Asia and sub-Saharan Africa barely moved and a few countries went backwards.

Individual historical figures are a different problem: the records are pre-metric, inconsistent and easy to misread. The most famous short man in history was not short — Napoleon's recorded "5 pieds 2 pouces" was in French royal units, which is 167.8 cm in modern terms, inside the 160–169 cm range for Frenchmen of his day. That page works through the conversion. The 17 fictional character heights we hold across 4 franchises are kept apart from real people for a related reason: a figure stated by an author is not a measurement either.

They are equal. Lifting a mass m through a height h at a steady speed takes work W = mgh, and the gravitational potential energy it gains is mgh as well, so the work done against gravity has gone entirely into stored energy. In a textbook with four options, "they are equal" is the answer being looked for.

The equality holds under the usual idealisations: no friction, no air resistance, and no leftover motion at the top. Accelerate the object upward instead and the lifting force does more work than the potential energy gained, with the surplus showing up as kinetic energy. Note that only the change in height matters, not the route taken to get there — which is why h in that formula is a vertical height difference, the same quantity the height difference calculator works in.

In a well-nourished population, roughly 80% of the variation in adult height is inherited. It is not one gene but hundreds of common variants each worth a millimetre or two, which is why children scatter around their parents' heights instead of landing on a predictable mid-point.

The remaining fifth is mostly childhood: nutrition, repeated illness, and conditions before birth. That split explains something which otherwise looks contradictory — height is strongly heritable for an individual, yet a national average can move 20 cm in a century, as South Korea's did. Genes set the range; childhood decides where in it you land.

Almost never. Growth happens at the growth plates near the ends of the long bones, and once those fuse — typically around 14 to 16 in girls and 16 to 18 in boys — skeletal height is fixed. No stretching routine, supplement or exercise reopens them.

What does change is recoverable, not new: you are up to 2 cm taller shortly after waking because spinal discs decompress overnight, and posture can reclaim a centimetre that slouching was hiding. In the other direction, adults slowly lose height from midlife onward as discs thin. If your own measurement keeps moving, it is worth measuring properly — bad technique moves the reading by more than most real changes.

Mostly generations of childhood nutrition and health, not a different genetic ceiling. Across the 55 countries we hold, the male average runs from 183.8 cm in the Netherlands down to 160.1 cm in Timor-Leste. A 23.7 cm spread is not explicable by genetics alone — the clinching evidence is that some populations covered most of that distance in three or four generations, far faster than a gene pool changes.

The practical consequence is that a height says nothing until you name the group. The same 188 cm man sits at the >99th percentile among men in Timor-Leste and around the 72nd in the Netherlands. Average height by country has the full table, and the methodology cites the surveys behind it.