Inches to Centimetres
Unit conversionHow many centimetres is an inch?
Multiply inches by 2.54 to get centimetres, or enter any length to convert it.
What you enter stays on your device while you use this tool. Opening a shared link sends the settings in its address to HowToolbox to prepare the page.
Result
2.54 cm
1 inch equals 2.54 centimetres
- The other way round: 1 cm ≈ 0.3937 in.
- Exact by definition: 1 cm = 0.01 m.
Length
In all units
- Millimetres
- 25.4 mm
- Centimetres
- 2.54 cm
- Metres
- 0.0254 m
- Kilometres
- 2.54 × 10⁻⁵ km
- Inches
- 1 in
- Feet
- 0.08333 ft
- Yards
- 0.02778 yd
- Miles
- 1.578 × 10⁻⁵ mi
- Nautical miles
- 1.371 × 10⁻⁵ nmi
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Multiply inches by 2.54 to get centimetres, or enter any length to convert it.
How to use
- Type the value you want to convert.
- Choose the units to convert from and to. Use the swap button to flip them.
Heights in centimetres
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How it works
Every unit is converted through metres using exact definitions: 1 inch is exactly 2.54 cm, 1 foot is 0.3048 m, 1 mile is 1,609.344 m and 1 nautical mile is 1,852 m.
These definitions come from the International Yard and Pound Agreement of 1959 and the international definition of the nautical mile.
Frequently asked questions
How big is a 55-inch TV in centimetres?
Screen sizes measure the diagonal, so 55 inches is 139.7 cm corner to corner. A 16:9 screen of that size is about 122 cm wide and 68 cm tall.
What are 24, 27 and 32 inches in centimetres?
24 inches is 60.96 cm, 27 inches 68.58 cm and 32 inches 81.28 cm. For monitors and TVs this is the diagonal of the screen.
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