Compare heights side by side, drawn to scale.

Height Lens is a free height comparison tool. Give it two or more heights and it draws each one as a figure on a single chart, standing on a shared ground line and scaled from its own measurement. That is the whole idea: 178 cm and 186 cm are two numbers you have to do arithmetic on, while two silhouettes eight centimetres apart is something you simply see. Scale is what turns a height difference from a fact you are told into one you can judge.

Every height difference, in both units

Below the chart you can switch to a grid of every pair’s height difference, in whichever unit you are working in — so a four-person lineup answers six questions rather than the one you asked. Tap any figure to make it the reference and the gap from everyone else to it is drawn on the chart itself. You also get the tallest, the shortest, the range between them and the average. If you want the number for two heights and no picture, theheight difference calculator does that arithmetic on its own.

More than two people, and not only people

One chart holds up to 40 entries. They can be heights you type — centimetres, metres, or feet and inches are all accepted in the same field — a celebrity from the built-in list, an everyday object for a sense of scale, or a photo from your own camera roll. Sort the lineup tallest first, shortest first or centred, drag it into any order you like, and switch units at any point without re-entering anything.

Celebrities, characters and national averages

69 celebrity heights are built into the tool and have a reference page each, from record holders to the actors whose height gets argued about online. 17 fictional character heights across 4 franchises have pages too, each citing the official guide the figure is stated in. There are 48 head-to-head height comparisons already worked out, and average height by country for 55 countries. Every one of those pages opens the chart with its subject already standing on it.

Where a height actually sits

A measurement on its own does not tell you whether it is tall. Height Lens estimates a percentile for each adult on the chart against a national distribution, and that answer moves further than most people expect: the same 180 cm man is around the 30th percentile in the Netherlands and the 97th in India. The browse-by-height pages work through that country by country for 12 common heights, from 5'3" to 6'2", and the height percentile calculator will do it for any height you enter.

Sharing a comparison

The lineup is encoded in the page address, so copying the URL shares the exact chart — no account, no saved document, nothing to expire. You can also export it as a PNG or an SVG, or copy the image straight to your clipboard. Photos are the one exception: they are resized in your browser and stay on your device, so a shared link shows them as plain blocks instead of exposing the image.

Where the numbers come from

Heights are not all known to the same standard, and this site labels which is which rather than flattening them into one confident-looking figure. A measured height has a verified measurement behind it; an officially listed height is published by a body such as a sports league; a commonly reported height is only what public sources repeat. Country averages come from the NCD Risk Factor Collaboration and US percentiles from the CDC’s NHANES survey, which is why the two disagree slightly. The methodology sets out every source, the percentile maths and the points where the estimates stop meaning anything. If you want to compare yourself honestly, it is worth measuring your height properly first — most people are a centimetre or two out, and shorter by the evening than they were at breakfast.