Centimeters to Inches Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: To convert centimeters to inches, multiply by 0.3937008. For example, 10 cm is 3.937008 in. One centimeter equals 0.3937008 in.

Use the Centimeters to Inches Converter

Centimeters to Inches formula and what each symbol means

in = cm × 0.3937008

Symbols used in the formula
SymbolMeaning
cmCentimeter
inInch

Centimeters to Inches examples

1 cm

1 cm × 0.3937008 = 0.3937008 in.

10 cm

10 cm × 0.3937008 = 3.937008 in.

100 cm

100 cm × 0.3937008 = 39.37008 in.

Centimeters compared with Inches

One in is 2.54 times as large as one cm, so your number gets smaller when you convert centimeters to inches and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.

About centimeters and inches

Centimeter (cm): One hundredth of a metre. Inch (in): The international inch, exactly 2.54 centimetres.

How to calculate Centimeters to Inches step by step

  1. Enter the value in cm (the starting unit).
  2. Multiply by 0.3937008, because 1 cm = 0.3937008 in.
  3. The product is the value in in. To go back, divide by 0.3937008 or multiply by 2.54.

Popular typography conversions

How to read your Centimeters to Inches result

Quick estimate: multiply by about 0.4 to get inches from centimeters; this is within 1.6% of the exact factor. In CSS, one inch is exactly 96 pixels, 72 points and 6 picas.

CENTIMETERSINCHES
10.3937008
20.7874016
51.968504
103.937008
207.874016
5019.68504
10039.37008
1,000393.7008

Inches to Centimeters: quick table

INCHESCENTIMETERS
12.54
512.7
1025.4
2563.5
50127
100254
250635
5001,270

Common mistakes when calculating Centimeters to Inches

  • Mixing the CSS point (1/72 in) with older printer point definitions.
  • Dividing when you should multiply: from cm to in multiply by 0.3937008; from in to cm divide by 0.3937008.

Centimeters to Inches FAQ

How many in are in 1 cm?

1 cm equals 0.3937008 in.

How many cm are in 1 in?

1 in equals 2.54 cm.

Is 1 cm = 0.3937008 in an exact conversion?

The factor is shown rounded to 7 significant figures (0.3937008). The calculator above uses more digits.

What is an inch (in)?

The international inch, exactly 2.54 centimetres.

How can I estimate centimeters to inches in my head?

Quick estimate: multiply by about 0.4 to get inches from centimeters; this is within 1.6% of the exact factor.

What is 12 cm in inches?

12 cm = 4.724409 in (since 12 × 0.3937008).

What is 60 cm in inches?

60 cm = 23.62205 in (since 60 × 0.3937008).

What is 250 cm in inches?

250 cm = 98.4252 in (since 250 × 0.3937008).

How many decimals should I keep when converting cm to in?

Match the precision of your original measurement. For example, 3.937008 in rounds to 3.94 in at 3 significant figures; keep more digits only for engineering or scientific work.

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Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: W3C CSS Values and Units: absolute lengths (1in = 96px = 72pt = 6pc)