CM ↔ Inches Converter
Convert between centimeters and inches instantly
📚 Centimeters ↔ Inches Conversion Details
CM to Inches Formula
To convert centimeters to inches, divide the centimeters by 2.54.
Inches to CM Formula
To convert inches to centimeters, multiply the inches by 2.54.
Bidirectional Conversion
This converter works both ways simultaneously:
- Type in centimeters → inches updates automatically
- Type in inches → centimeters updates automatically
- No buttons to click - works as you type
Common Uses
- Height measurement (human height)
- Screen and monitor sizes
- Photography and print sizes
- Clothing and sewing measurements
📏 How This Converter Works
This is a bidirectional converter that works in real-time:
- CM → Inches: When you type in the cm field, the inches field automatically updates
- Inches → CM: When you type in the inches field, the cm field automatically updates
- No swapping needed: Both conversions happen simultaneously
- Real-time: Updates happen as you type, no button clicks required
inches = centimeters ÷ 2.54
centimeters = inches × 2.54
// Example 1: Type "30" in cm
inches = 30 ÷ 2.54 = 11.811
// Example 2: Type "12" in inches
centimeters = 12 × 2.54 = 30.48
📊 Conversion Table
| Centimeters | Inches | Feet & Inches |
|---|---|---|
| 1 cm | 0.39" | 0' 0.39" |
| 5 cm | 1.97" | 0' 1.97" |
| 10 cm | 3.94" | 0' 3.94" |
| 30 cm | 11.81" | 0' 11.81" |
| 50 cm | 19.69" | 1' 7.69" |
| 100 cm | 39.37" | 3' 3.37" |
❓ Frequently Asked Questions
A: There are exactly 2.54 centimeters in one inch.
A: Both input fields work simultaneously. When you change the cm value, inches updates automatically. When you change the inches value, cm updates automatically. No swap button needed.
A: 180 cm = 5 feet 11 inches (approximately). Many people use this converter for height measurements.
A: This converter uses the exact conversion factor of 2.54 cm per inch and provides calculations up to 4 decimal places.