Frequently asked questions

Add each subject with its name, height and figure style, and both appear on one shared scale with a ruler beside them. Drag the figures to reorder, change the display unit, and the difference between tallest and shortest is shown below the board.

Yes - up to 24 subjects on one board. That covers a full sports roster, a family lineup, or a scale reference sheet mixing people, animals, objects and buildings.

The input has a unit toggle, and the two stay in sync as you type, so you can enter in feet and inches and read the centimetre equivalent immediately. The board's ruler has its own toggle for cm, ft and in, or metres.

There is no account system, so nothing is stored on a server. What you can do is copy a share link, which encodes the whole lineup into the URL - open that link later or send it to someone else and the exact same board is restored.

Yes. The Download PNG button renders the board at double resolution, which is enough for slides, documents and social posts. The export happens in your browser.

Yes. The layout switches to a single column below 980 px, the board scrolls horizontally when a lineup gets wide, and all controls are touch-sized.

Once the page has loaded, yes. There are no required network calls after that, so the tool keeps working if your connection drops.

The drawing is exact: every subject is scaled directly from its centimetre value against one shared baseline, so a 20 cm difference renders as a 20 cm difference. What is not exact is the input data, which is why every preset is editable and carries a note about its basis.

No. They are the commonly cited public figures, which usually come from agency cards, league listings or press material and often include footwear. Treat them as starting points for a visual comparison, not as measurements.

NCD Risk Factor Collaboration (NCD-RisC) data, as compiled and rounded to two decimal places by worlddata.info. NCD-RisC pools population-based studies and models national means, so these are estimates rather than a census.

Because there is often no primary measurement behind either. Sources copy from each other, some round up, and almost none state whether footwear was included or when the measurement was taken.

No, and it is not intended to be. It models adult height as a normal distribution with stated mean and standard deviation. It is a statistical estimate for curiosity, not a growth-chart readout or a diagnostic tool.

It applies the standard mid-parental method, which is a population rule of thumb. Roughly 19 in 20 children fall within about 8.5 cm of the estimate, so it narrows the question without answering it. Anything that matters should go to a paediatrician.

Divide the centimetres by 2.54 to get total inches, then divide by 12 for whole feet and keep the remainder as inches. 175 cm is 68.9 in, which is 5 ft 8.9 in - usually rounded to 5 ft 9 in.

Yes, exactly. The international inch was defined as precisely 25.4 mm by the 1959 yard and pound agreement. One foot is therefore exactly 30.48 cm.

Almost always rounding. Feet and inches has only twelve increments per foot, so each whole inch spans 2.54 cm and two people nearly three centimetres apart can round to the same label.

182.88 cm exactly. People commonly round this to 183 cm, which hides a small error - a listed 183 cm is not quite the same as a stated 6 ft.

No. Everything runs locally in your browser. There is no server-side processing of comparisons, no account, and nothing you type is transmitted.

Only a single local storage entry to remember your light or dark theme preference. There is no tracking cookie and no advertising.

The charts you generate are yours to use. See the terms of service for the full detail, and the disclaimer for what the data can and cannot be relied on for.

Export uses canvas rendering, which some older browsers and a few privacy extensions block. Try a current version of Chrome, Edge, Firefox or Safari, and if it still fails, please report it so we can look at your specific setup.