The CM to Inches Converter converts between centimeters and inches — essential for tailoring, furniture, travel, and education. All calculations happen locally in your browser. Whether you are measuring furniture for a room, calculating height for medical records, or working on an international DIY project, this converter switches between centimeters and inches in real time.
How to Use
- 1Enter a value: Type the cm or inch value in the "From" field.
- 2Select direction: Choose cm or inch as your starting unit.
- 3Read result: Converted value appears instantly. Use ↕ to swap.
The Formula
Real-World Applications
50 cm chest = 19.7 in. Essential for international clothing.
120 cm desk = 47.2 in. Verify dimensions across systems.
175 cm height = 5 ft 9 in. Common for medical forms.
55 cm carry-on = 21.7 in. Meet airline size limits.
How the Conversion Works
One inch equals exactly 2.54 centimeters by international agreement. The converter divides centimeters by 2.54 to get inches, and multiplies inches by 2.54 to get centimeters. This fixed conversion factor means every result is precise and reliable. The formula is displayed below the result for reference, and you can adjust decimal precision from 2 to 8 places.
Quick Reference Tips
Remember that 1 inch is roughly 2.5 cm for quick estimates. A standard ruler is 30 cm (about 12 inches). For clothing sizes: 1 inch waist = 2.54 cm. Save the conversion table for common sizes like A4 paper (21 x 29.7 cm).
Frequently Asked Questions
Divide by 2.54. Example: 50 cm ÷ 2.54 = 19.685 inches.
Exactly 2.54 cm per inch — an internationally agreed standard.
1/4 inch = 6.35 mm = 0.635 cm. Common in woodworking.
Yes. All calculations happen locally in your browser. No data is sent anywhere.
Exactly 2.54 cm per inch by international standard definition.
5 feet 10 inches = 70 inches total. 70 x 2.54 = 177.8 cm.
Both are equally accurate. The converter supports up to 8 decimal places for maximum precision.
Related Tools
Browse All Tools — Free, private browser-based tools for everyone.