Length Converter: cm to Inches, Feet to Meters & More

Convert centimeters, inches, feet, meters, kilometers, miles, yards and millimeters instantly, with the formula shown.

Value From To

All conversions

Quick answer: 1 inch = 2.54 cm, so to convert cm to inches divide by 2.54 (or multiply by 0.3937). 1 foot = 0.3048 m, so to convert feet to meters multiply by 0.3048. 1 mile = 1.609 km.

Centimeters to inches chart

cm	inches	cm	inches
1	0.39	30	11.81
5	1.97	50	19.69
10	3.94	100	39.37
20	7.87	150	59.06

Height in feet and inches to cm

Height	cm	Height	cm
5 ft 0 in	152.4	5 ft 8 in	172.7
5 ft 3 in	160.0	5 ft 10 in	177.8
5 ft 5 in	165.1	6 ft 0 in	182.9
5 ft 7 in	170.2	6 ft 2 in	188.0

To convert a height like 5 ft 7 in: multiply the feet by 30.48 and the inches by 2.54, then add them: 5 × 30.48 + 7 × 2.54 = 152.4 + 17.78 = 170.18 cm.

How to convert feet to meters

Multiply feet by 0.3048. A 12 ft room is 12 × 0.3048 = 3.66 m. To go back, divide meters by 0.3048 or multiply by 3.28084. This is handy for room sizes, property listings and construction drawings, where Gulf and South Asian listings often mix feet and meters.

Length conversion factors

To convert	Multiply by
Millimeters to inches	0.03937 (or divide by 25.4)
Centimeters to inches	0.3937 (or divide by 2.54)
Inches to centimeters	2.54
Feet to meters	0.3048
Meters to feet	3.28084
Yards to meters	0.9144
Meters to yards	1.09361
Kilometers to miles	0.621371
Miles to kilometers	1.609344

How metric and imperial units relate

The metric system is built on the meter: 1 meter is 100 centimeters or 1,000 millimeters, and 1 kilometer is 1,000 meters. Imperial units step up in twelves and threes instead: 1 foot is 12 inches, 1 yard is 3 feet, and 1 mile is 1,760 yards or 5,280 feet. Since 1959 the yard has been defined as exactly 0.9144 meters, which is why 1 inch is exactly 2.54 cm.

Centimeters to feet and inches

cm	Feet and inches	cm	Feet and inches
150	4 ft 11.1 in	175	5 ft 8.9 in
155	5 ft 1.0 in	180	5 ft 10.9 in
160	5 ft 3.0 in	185	6 ft 0.8 in
165	5 ft 5.0 in	190	6 ft 2.8 in
170	5 ft 6.9 in

To do it yourself, divide the centimeters by 2.54 to get inches, then divide by 12: the whole number is the feet and the remainder is the inches. For example, 175 cm / 2.54 = 68.9 in, which is 5 ft 8.9 in.

Everyday length conversions

Screens: TV and phone sizes are measured diagonally in inches. A 55-inch TV is 139.7 cm across the diagonal, and a 6.1-inch phone screen is 15.5 cm.
Running: a 5K race is 3.11 miles, a 10K is 6.21 miles, and a marathon (42.195 km) is 26.2 miles.
Paper: A4 is 210 × 297 mm, or 8.27 × 11.69 inches. US Letter is 8.5 × 11 inches, or 215.9 × 279.4 mm.

Frequently asked questions

How many cm is an inch?

Exactly 2.54 cm. This has been the international definition of the inch since 1959.

How do I convert cm to inches?

Divide the centimeters by 2.54. For example, 30 cm / 2.54 = 11.81 inches.

How many feet are in a meter?

One meter is about 3.28084 feet, or 3 feet 3.37 inches.

How many km is a mile?

One mile is 1.609344 kilometers, and one kilometer is about 0.621 miles.

How tall is 170 cm in feet?

170 cm is about 5 feet 7 inches (5.58 feet).

How many inches is 5 feet?

5 feet is 60 inches, because 1 foot is 12 inches. That is 152.4 cm.

What is the size of A4 paper in inches?

A4 paper is 210 x 297 mm, which is 8.27 x 11.69 inches. US Letter paper is slightly wider and shorter at 8.5 x 11 inches.

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