CM to Inches Converter

Convert centimeters to inches instantly with a conversion table for common values.

Conversion table

Centimeters (cm)	Inches	Feet & Inches	Feet (decimal)
1	0.3937 in	0' 0.4"	0.0328 ft
2	0.7874 in	0' 0.8"	0.0656 ft
3	1.1811 in	0' 1.2"	0.0984 ft
4	1.5748 in	0' 1.6"	0.1312 ft
5	1.9685 in	0' 2"	0.164 ft
10	3.937 in	0' 3.9"	0.3281 ft
15	5.9055 in	0' 5.9"	0.4921 ft
20	7.874 in	0' 7.9"	0.6562 ft
25	9.8425 in	0' 9.8"	0.8202 ft
30	11.811 in	0' 11.8"	0.9843 ft
40	15.748 in	1' 3.7"	1.3123 ft
50	19.685 in	1' 7.7"	1.6404 ft
60	23.622 in	1' 11.6"	1.9685 ft
70	27.5591 in	2' 3.6"	2.2966 ft
75	29.5276 in	2' 5.5"	2.4606 ft

💡 Conversion Tips

1 inch = exactly 2.54 cm — divide cm by 2.54 to get inches.
Quick estimate: divide cm by 2.5 for a rough inch value.
For height: 5 feet = 152.4 cm, 6 feet = 182.88 cm.
Screen sizes (TVs, monitors) are always measured diagonally in inches.

How to Convert CM to Inches

To convert centimeters to inches, divide the centimeter value by 2.54. The inch is defined as exactly 25.4 millimeters (2.54 centimeters) by international agreement since 1959. This means 1 cm = 0.393701 inches. For example, 170 cm ÷ 2.54 = 66.93 inches, which equals 5 feet 6.93 inches. This conversion is commonly needed for height measurements, screen sizes, paper dimensions, and any time you need to translate between metric and imperial systems.

The CM to Inches Formula

The formula is simple: inches = centimeters ÷ 2.54. Since 1 inch = 2.54 cm exactly, dividing by 2.54 converts any centimeter measurement to inches. To also express the result in feet and inches: divide total inches by 12 to get feet, and the remainder is the inches portion. For example: 180 cm ÷ 2.54 = 70.87 inches. Then 70.87 ÷ 12 = 5 feet with 10.87 inches remaining, so 180 cm = 5'10.9".

Common CM to Inches Conversions

1 cm = 0.3937 inches — less than half an inch
2.54 cm = 1 inch exactly — the fundamental conversion factor
30.48 cm = 1 foot (12 inches) exactly
91.44 cm = 1 yard (3 feet) exactly
152.4 cm = 5 feet — common height reference point
182.88 cm = 6 feet — another common height reference

Height Conversion Chart

150 cm = 4'11.1" — short adult height
160 cm = 5'3.0" — average female height in many countries
170 cm = 5'6.9" — between average male and female globally
175 cm = 5'8.9" — average male height in the US
180 cm = 5'10.9" — tall in most countries
190 cm = 6'2.8" — very tall, basketball player range

CM to Inches Examples

Step-by-step conversions

Convert 175 cm to feet and inches

175 ÷ 2.54 = 68.898 inches
68.898 ÷ 12 = 5 feet remainder 8.898
Round: 5 feet 8.9 inches
Or approximately 5'9"

175 cm = 5 feet 8.9 inches (≈ 5'9")

Convert 55-inch TV to cm

55 inches × 2.54 = 139.7 cm
Screen diagonal = 139.7 cm
Width (16:9) ≈ 121.7 cm
Height (16:9) ≈ 68.5 cm

55 inches = 139.7 cm diagonal

Frequently Asked Questions

How many inches is 1 cm?

1 centimeter equals 0.393701 inches. To convert cm to inches, divide the cm value by 2.54. For example, 10 cm = 10 ÷ 2.54 = 3.937 inches.

How do I convert cm to feet and inches?

First divide cm by 2.54 to get total inches. Then divide total inches by 12 — the whole number is feet, the remainder is inches. Example: 170 cm ÷ 2.54 = 66.93 in; 66.93 ÷ 12 = 5 ft 6.93 in ≈ 5'7".

What is 170 cm in feet and inches?

170 cm = 66.93 inches = 5 feet 6.93 inches, which is approximately 5'7". This is close to the average adult height in many countries.

What is 180 cm in feet?

180 cm = 70.87 inches = 5 feet 10.87 inches, approximately 5'11". This is considered above-average height for males in most countries.

How many cm in a foot?

There are exactly 30.48 centimeters in one foot. This is because 1 foot = 12 inches, and 1 inch = 2.54 cm, so 12 × 2.54 = 30.48 cm.

Is cm to inches exact or approximate?

The conversion is exact: 1 inch = exactly 2.54 cm by international definition (since 1959). So 1 cm = exactly 10/25.4 inches = 0.393700787... inches. Any rounding in results is due to decimal display, not imprecision in the conversion factor.