CM to Inches Converter

Convert between centimeters and inches instantly — no signup, nothing sent to a server.

Edit either field — the other updates automatically. 1 cm = 0.393701 in.

Formula, conversion table & examples

Formula

in = cm × 0.39

cm = in ÷ 0.39

Centimeters to Inches conversion table

Centimeters (cm) Inches (in)
1 0.39
10 3.94
30 11.81
50 19.69
100 39.37
200 78.74

Worked examples

  • 1 cm = 1 × 0.39 = 0.39 in
  • 10 cm = 10 × 0.39 = 3.94 in
  • 78.74 in back to Centimeters: 78.74 ÷ 0.39 = 200 cm

How to convert cm to inches

  1. 1

    Enter a value in either field

    Type a length into the centimeters field, or the inches field — either direction works.

  2. 2

    Read the converted value

    The other field updates instantly as you type.

  3. 3

    Adjust as needed

    Keep editing either field to try different lengths.

Example use cases

1

Clothing & shoe sizing

Convert body or garment measurements between metric and imperial size charts.

2

Furniture & room dimensions

Check whether a piece of furniture fits a space measured in the other unit.

3

DIY & woodworking

Convert plans or material dimensions between cm and inch measurements.

4

Screen & display sizes

Convert diagonal or panel dimensions between metric and imperial units.

Frequently asked questions

How do I convert cm to inches?

Divide the length in centimeters by 2.54. For example, 100 cm ÷ 2.54 ≈ 39.37 in.

How do I convert inches to cm?

Multiply the length in inches by 2.54. For example, 39.37 in × 2.54 ≈ 100 cm.

Why is 2.54 the conversion factor?

One inch is defined as exactly 2.54 centimeters under the international yard and pound agreement, so this factor is exact, not an approximation.

Is anything I type sent to a server?

No. Every conversion runs entirely in your browser — nothing is transmitted or logged.