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CM to Inches Converter
Convert centimetres to inches and back using our instant calculator. One inch equals 2.54 centimetres. While the UK officially uses metric, inches are still widely used — screen sizes, furniture dimensions and some clothing measurements all use inches.
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Formula: Centimetres (cm) → Inches (in): Divide cm by 2.54
🇬🇧 British Context
Inches remain common in Britain for measuring TV screens, monitor sizes, waist measurements and paper sizes. The UK is unique in its continued everyday use of both metric and imperial measurements side by side.
Inches remain common in Britain for measuring TV screens, monitor sizes, waist measurements and paper sizes. The UK is unique in its continued everyday use of both metric and imperial measurements side by side.
CM to Inches — Quick Reference Table
Frequently Asked Questions
CM to Inches Converter — common questions answered
How do I convert cm to inches?
Divide centimetres by 2.54 to get inches. For example, 40cm ÷ 2.54 = 15.75 inches.
What is 40cm in inches?
40cm is equal to 15.75 inches (40 ÷ 2.54 = 15.75 in).
What is 50cm in inches?
50cm is equal to 19.69 inches (50 ÷ 2.54 = 19.69 in).
What is 20cm in inches?
20cm is equal to 7.87 inches (20 ÷ 2.54 = 7.87 in).
How many cm is an inch?
One inch is exactly 2.54 centimetres. This is an exact conversion defined by the International Yard and Pound Agreement of 1959.