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Sizes & science·8 min read

Compare two heights without a decimal-feet mistake

Enter each height with an explicit unit, then compare the two figures. Height Studio accepts centimetres and feet with inches; a decimal number of feet still needs distinguishing from the familiar feet-and-inches notation.

The short answer

Write down each example height with its unit before opening the chart.

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Keep the original units with each person

Write down each example height with its unit before opening the chart. A bare 175 and a bare 5.10 do not communicate the same kind of measurement. Height Studio can compare people entered in centimetres or feet and inches, but it cannot know which notation someone intended outside the form. Use neutral names for an illustration and keep any uncertain source height labelled as uncertain.

Add the first person in centimetres

Under “Add person”, enter the name and height, then choose “Add to comparison”. For example, use 175 cm for the first illustrative person. Check the value that appears in the line-up before adding another. A decimal or unit mistake is easier to spot when the chart contains only the new person. The silhouette is a graphic chosen for comparison, not a body scan or a physical measurement of the named person.

Add feet and inches as two parts

Switch “Units” to “ft / in” when you want the separate ft and in fields. For example, five feet ten inches means 5 in ft and 10 in in. The metric input also understands explicit notation such as 5 ft 10 in. Avoid replacing the separator with a decimal point. A number of feet with a decimal fraction is not the same notation as whole feet followed by inches.

Check the arithmetic on an illustrative pair

NIST's unit tables, consulted on 22 October 2026, define one inch as exactly 2.54 cm and one international foot as twelve inches. Thus the illustrative 5 ft 10 in equals 70 inches, or 177.8 cm. Compared with the illustrative 175 cm person, the difference is 2.8 cm. These are calculated examples, not measured people or a prediction of how a particular pair will look.

Do not read decimal feet as a height label

For another arithmetic example, 5.5 ft is five and a half feet: 5 ft 6 in, or 167.64 cm. It is not 5 ft 5 in, which equals 165.1 cm. Keep the units visible while entering the value. If a source uses an ambiguous label such as 5.10, clarify its notation rather than assuming that its decimal digits mean inches.

Use the selected figure to read the comparison

Choose a person in the scene to show comparison information. With only the two illustrative people, the difference is easier to associate with the right pair. “Fit all” adjusts the view, and zoom changes the display rather than the entered heights. A rounded feet-and-inches label may hide a small metric difference; compare the underlying supplied values rather than subtracting two rounded labels as though they were exact inputs.

Check what the picture and link will disclose

“Save PNG” creates a picture of the scene; “Share link” sends or copies its current link. The line-up is encoded after #, and the code carries the displayed people and values. Local processing does not make a shared link secret from its recipient. Use anonymous labels for a public illustration and inspect the exported image so names and figures mean what the caption says.

Keep the claim as narrow as the chart

A two-person diagram shows a scale comparison based on entered heights. Changing the silhouette, build or colour is a presentation choice and does not establish exact body proportions. It does not determine eye contact, relationship compatibility or future growth. If you use a popular preset, check which figures it loaded before adding your own people. Keep the original input units beside the final caption so another reader can follow the calculation.

Check the rounding before claiming equal heights

Suppose two illustrative entries differ by only a few millimetres. A concise feet-and-inches label may round them to the same displayed value. That does not make the supplied lengths equal. Keep the original measurements in your note and use the comparison information instead of subtracting rounded labels. Conversely, a visibly stretched screenshot is not another measurement: changing the displayed width or height of an image can alter the apparent shape. Preserve its proportions when placing the exported picture in a document.

Write a caption that identifies the unit of each original input and distinguishes a calculated difference from a measured one. If one source was rounded to whole centimetres, do not imply that conversion created more precise knowledge of the person. The exact unit factor converts the supplied quantity; it does not recover missing measurement precision. For an educational example, state that the numbers were chosen to demonstrate notation rather than represent named people. This keeps the useful arithmetic separate from claims about posture, body proportions or physical appearance. When someone questions a small apparent difference, revisit the input notation first, then the displayed rounding and image scaling, rather than treating the silhouette as an independent height measurement.

Questions you might still have

Is 5.5 ft the same as 5 ft 5 in?

No. A half foot is six inches, so 5.5 ft equals 5 ft 6 in. The other notation is five feet and five inches. Keep the unit or separate fields visible instead of reading decimal digits as an inches field.

How does the 175 cm versus 5 ft 10 in example work?

Five feet ten inches is seventy inches. Multiplying by the exact 2.54 cm per inch gives 177.8 cm. Subtracting the illustrative 175 cm gives 2.8 cm. These are calculated values supplied for explanation, not a measurement of real people.

Does changing Units alter a person's actual height?

It changes presentation and the input arrangement, not the intended physical quantity. Read the value after a switch and keep the source notation. Rounded display labels can be less precise than the originally supplied number, so avoid repeated conversions based only on those labels.

Why can two similar labels still show a small difference?

Labels are rounded for readable display. Nearby underlying values can therefore have similar-looking feet-and-inches labels. Use the entered quantities and the comparison information rather than inferring exact equality from a short rounded label beside a silhouette.

Is a shared line-up private because processing is local?

The recipient can read the scene encoded in its link, including the chosen labels and values. Local processing is separate from your decision to share. Use neutral labels for a public example and inspect both the image and the link before forwarding.

Does the chart show exact body proportions?

No. The silhouette and build are presentation choices scaled to the supplied height. They are not a scan of the person. Keep the conclusion to the entered size comparison rather than predicting eye level, compatibility or any future growth.

Sources & useful details

These guides are written from the current LoschaZ tools and the sources listed above. Examples are illustrations, not tests on every device or promises of an identical result.