Online Calculators

# cm to inches (cm to in) | centimeters to inches

cm to inches Converter
cm
=
0.393701 in
3/8 in

Solution:
1 cm ÷ 2.54 cm/in
= 0.393701 in

Steps to convert units cm to in
Step 1:
Convert centimeters to inches
Divide cm by 2.54 cm/in
1 cm ÷ 2.54 cm/in

Step 2:
Cancel centimeters and inches remain
1 cm ÷ 2.54 cm/in
Then divide numbers to get inches
= 0.393701 in

Step 3: optional
Convert decimal inches to the closest 1/8 of an inch.

Multiply the decimal part by 8 and round to a whole number

Round(0.393701 × 8) = 3

We get 3/8 as the fraction part of inches

Therefore:
1 cm ÷ 2.54 cm/in = 3/8 in

## Calculator Use

Convert metric units of centimeters to Imperial and US units of inches. If the number of inches is larger than 12 (12 in = 1 ft) the answer will include feet and inches with fractions if necessary. The inch symbol is in or ", the feet symbol is ft, and the centimeters symbol is cm.

## What is cm to inches?

cm to inches is the conversion of length units from cm to inches. There are exactly 2.54 centimeters in 1 inch. To convert from centimeters (cm) to inches (in) divide by 2.54.

Divide cm by 2.54

cm divided by 2.54 is inches or
cm / 2.54 = in

### Explanation:

1 inch is equal to 2.54 centimeters. For conversions of units we say that there are 2.54 centimeters per inch and write it as 2.54 cm/in. To convert from centimeters to inches, divide cm units by 2.54 cm/in. Centimeters (cm) will cancel and we are left with inches (in) units in the answer.

Example: What is 18 cm in inches?

18 cm to inches is calculated here using division:
18 cm ÷ 2.54 cm/in
Divide through and cancel cm units
18 cm ÷ 2.54 cm/in = 7.086614 in

18 cm = 7.086614 in

Since we are dividing by 2.54 cm/in, that is the same as multiplying by 1/(2.54 cm/in) and 1 divided by 2.54 cm/in is approximately equal to 0.3937 in/cm. Therefore, the alternative calculation for converting centimeters to inches can be performed using multiplication instead as follows: (notice the slightly different answer since we approximated in/cm as 0.3937)

18 cm to inches is calculated here using multiplication:
18 cm × 0.3937 in/cm
Multiply through and cancel cm units
18 cm × 0.3937 in/cm = 7.0866 in

18 cm = 7.0866 in

Quick Conversion
Multiply by
or Divide by
convert inches to centimeters
2.54
0.3937
convert centimeters to inches
0.3937
2.54

### Convert Metric units to Imperial and US units

Convert height of 144.5 centimeters to inches.

• Convert cm to in
• 144.5 cm × 0.3937 in/cm = 56.89 inches
• Alternately, 144.5 cm / 2.54 in/cm = 56.89 inches

## Inch

An inch is a unit of length and has the symbol in or ". Five inches can be expressed as either 5 in or 5". The inch is a unit of length in the British imperial system of units and United States customary units where there are 12 inches in 1 foot. 1 inch is exactly 2.54 centimeters.

## Centimeter or Centimetre

A centimeter is a unit of length and has the symbol cm. The spelling centimeter is American while centimetre is the international spelling used by many other countries. The centimeter is a unit of length in the International System of Units where the meter (m) is the base unit of length. There are 100 centimeters in 1 meter and, 1 centimeter is equal to exactly 1/2.54 inches which is approximately 0.3937 inches.

Cite this content, page or calculator as:

Furey, Edward "cm to inches (cm to in) | centimeters to inches" at https://www.calculatorsoup.com/calculators/conversions/cm-to-inches.php from CalculatorSoup, https://www.calculatorsoup.com - Online Calculators

Last updated: August 14, 2023