Calculation note
Centimetres-to-feet-and-inches conversion is useful because metric records and imperial everyday speech still meet in height, clothing, building, sports, travel and product dimensions. The conversion factor is exact, but the useful page record shows both the original centimetres and the rounded display result.
The inch gives this conversion its exact anchor
Modern conversion uses the exact international-inch definition: 1 inch is 2.54 centimetres. Once centimetres are converted to total inches, splitting the number into feet and inches is ordinary division by 12.
Feet and inches remain a communication format
A height such as 180 cm may be recorded metrically but spoken as about 5 ft 11 in. Product labels, room notes and workshop conversations often need that mixed-unit form because it matches imperial tape measures and familiar height descriptions.
Rounding should match the job
A classroom worksheet might round to two decimal places, while a person’s height is often spoken to the nearest inch. A cut list or formal specification may need a different precision. The calculator keeps the formula visible so the rounding choice can be checked.