CM โ†” Inches Converter

Convert between centimeters and inches instantly

Conversion Result
30 cm = 11.81 inches
30 cm โ€ข 11.81 inches โ€ข 0.98 feet โ€ข 0.3 meters

๐Ÿ“š Centimeters โ†” Inches Conversion Details

CM to Inches Formula

inches = centimeters รท 2.54

To convert centimeters to inches, divide the centimeters by 2.54.

Inches to CM Formula

centimeters = inches ร— 2.54

To convert inches to centimeters, multiply the inches by 2.54.

Bidirectional Conversion

This converter works both ways simultaneously:

  • Type in centimeters โ†’ inches updates automatically
  • Type in inches โ†’ 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

๐Ÿ“ How This Converter Works

This is a bidirectional converter that works in real-time:

  1. CM โ†’ Inches: When you type in the cm field, the inches field automatically updates
  2. Inches โ†’ CM: When you type in the inches field, the cm field automatically updates
  3. No swapping needed: Both conversions happen simultaneously
  4. Real-time: Updates happen as you type, no button clicks required
// Bidirectional Conversion Logic:
inches = centimeters รท 2.54
centimeters = inches ร— 2.54

// Example 1: Type "30" in cm
inches = 30 รท 2.54 = 11.811

// Example 2: Type "12" in inches
centimeters = 12 ร— 2.54 = 30.48

๐Ÿ“Š 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"

โ“ Frequently Asked Questions

Q: How many centimeters are in an inch?

A: There are exactly 2.54 centimeters in one inch.

Q: How does the bidirectional conversion work?

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.

Q: What is a common conversion for height?

A: 180 cm = 5 feet 11 inches (approximately). Many people use this converter for height measurements.

Q: How accurate is this converter?

A: This converter uses the exact conversion factor of 2.54 cm per inch and provides calculations up to 4 decimal places.