Height converter

Type a height in any common format (cm, m, or feet and inches) and see every unit at once.

Centimetres
170 cm
Metres
1.70 m
Feet and inches
5'7"
Total inches
66.9 in

Nearby heights

cmft/in
160 cm5'3"
162 cm5'4"
164 cm5'4.5"
166 cm5'5.5"
168 cm5'6"
170 cm5'7"
172 cm5'7.5"
174 cm5'8.5"
176 cm5'9.5"
178 cm5'10"
180 cm5'11"
To convert centimetres to feet and inches, divide by 2.54 to get total inches, then split into whole feet (÷12) and remaining inches. To go the other way, multiply feet by 12, add the inches, then multiply the total by 2.54 to get centimetres. One inch is exactly 2.54cm, an international standard since 1959 rather than a rounded approximation.

Worked example

  1. Height 170 cm
  2. Working 170 ÷ 2.54 = 66.9 in
  3. Result 5'7" · 1.70 m
Someone who is 170cm tall has 66.9 total inches. Dividing by 12 gives 5 feet with 6.9 inches left over, which rounds to the nearest half inch as 5'7". In metres that is 1.70m.

Method and sources

This converter uses pure arithmetic and no external dataset. The only constant is the international definition of the inch as exactly 2.54cm, agreed in the International Yard and Pound Agreement of 1959.

Feet-and-inches results are rounded to the nearest half inch, matching how heights are usually written. Centimetre results are shown to one decimal place.

For a quick look-up, the cm to feet and inches chart lists every height from 140 to 210 cm.

Frequently asked questions

How do I convert cm to feet and inches?

Divide the height in centimetres by 2.54 to get total inches, then divide by 12 for whole feet, keeping the remainder as inches. For example, 170cm ÷ 2.54 = 66.9 inches, which is 5 feet 6.9 inches — rounded to the nearest half inch, 5'7".

How many inches is 1cm?

1cm is exactly 0.3937 inches (1 ÷ 2.54). This conversion factor — 2.54cm per inch — has been the international standard since 1959 and is exact, not an approximation.

What's the difference between feet-inches and total inches?

Feet-inches (e.g. 5'7") splits a height into whole feet plus the remaining inches. Total inches (e.g. 67 inches) expresses the same height as one number. Both describe the same height; total inches is more useful for maths, feet-inches is the more familiar everyday format in the US and UK.

Why does my height in feet and inches sometimes round differently?

This converter rounds to the nearest half inch (0.5"), which matches how heights are usually written and measured in practice. A height ending in exactly .25in rounds to the nearest .5in, so you may occasionally see a small (under 1cm) difference versus a converter that keeps more decimal places.

Is 1 metre the same as 100cm?

Yes — a metre is defined as exactly 100 centimetres, so converting is just moving the decimal point: 1.70m is the same height as 170cm.

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