Inches to Cm Converter

Convert inches to centimeters instantly. Free inches to cm converter with quick reference table, formula, and common length conversions.

2.54
Centimeter (cm)
Input Value
1 in (Inch)
About the width of your fingernail
1/12 of a foot. Standard in US for small measurements.

How to Convert Inch to Centimeter

Simple formula with a worked example

To convert inch (in) to centimeter (cm), use this formula:

cm = inches × 2.54

Example: Convert 12 in to cm

12 in = 30.48 cm

To convert back, use: inches = cm ÷ 2.54

Inch to Centimeter Conversion Table

Quick reference for common inch to centimeter conversions

Inch (in)Centimeter (cm)
1 in2.54 cm
2 in5.08 cm
5 in12.7 cm
10 in25.4 cm
25 in63.5 cm
50 in127 cm
100 in254 cm
250 in635 cm
500 in1,270 cm
1,000 in2,540 cm

About Inch and Centimeter

Understanding these length units

Inch (in)

1/12 of a foot. Standard in US for small measurements.

Centimeter (cm)

1/100 of a meter. Common for body measurements.

When You Need This Conversion

  • metric conversion
  • screen size comparison
  • clothing measurement
  • DIY projects

Frequently Asked Questions

Common questions about converting inch to centimeter

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Last updated Mar 21, 2026