Inches to CM Converter
Convert inches to cm instantly. Formula: centimeters = inches × 2.54. Free, no ads walls, runs in your browser.
1 Inch (in)
2.54
Centimeter (cm)
Centimeter (cm) = Inch (in) × 2.54
1 Inch (in) equals
Millimeter (mm)
25.4
Centimeter (cm)
2.54
Meter (m)
0.0254
Kilometer (km)
0.0000254
Foot (ft)
0.0833333333
Yard (yd)
0.0277777778
Mile (mi)
0.0000157828
Convert inches to cm instantly with this free online converter — the units are already selected above, so just type your value and read the result. It's most often needed for TV and monitor sizes, clothing measurements, and DIY projects that mix imperial and metric units.
The conversion uses the exact formula centimeters = inches × 2.54. Quick reference: 1 in = 2.54 cm, 5 in = 12.7 cm, 12 in = 30.48 cm, 24 in = 60.96 cm. All math runs locally in your browser with 12-digit precision — nothing is sent to a server, and there's no sign-up or paywall.
How to convert units online
- 1Pick a category tab at the top — Length, Weight, Temperature, Volume, Area, Speed, or Data.
- 2Enter the number you want to convert in the Value field.
- 3Choose your starting unit in the From dropdown and your target unit in the To dropdown — the result updates instantly as you type.
- 4Click the swap button between the dropdowns to reverse the conversion direction.
- 5Check the formula shown under the result, and use the quick-reference grid below to see your value’s equivalent in every other unit of the category.
Frequently asked questions
What is the formula to convert inches to cm?
centimeters = inches × 2.54. The converter above applies it instantly as you type and shows the formula used under the result.
What are some common inches to cm conversions?
1 in = 2.54 cm, 5 in = 12.7 cm, 12 in = 30.48 cm, 24 in = 60.96 cm
Can I convert cm back to inches?
Yes — click the swap button between the two unit selectors to reverse the conversion direction instantly.
Is this converter accurate?
Yes. It uses exact international conversion factors and computes to 12 significant digits, entirely in your browser.
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