Convert centimeters to inches and inches to centimeters, with feet and inches shown for heights.
Type into either box for an instant conversion. Heights are also shown in feet and inches, and lengths in millimetres.
Conversion
—
—Feet and inches
—Millimetres
—Metres
—Nearest 1/16 in
How Does It Work?
Enter your measurementCentimeters or inches — type into whichever box matches what you have.
Read the format you needFeet and inches for height, millimetres for precision work, sixteenths for a tape measure.
Copy it acrossPaste the converted figure straight into a form or an order.
What Is It Used For?
The inch has been defined as exactly 2.54 centimeters since 1959, so nothing here is approximate. The conversion matters most for clothing sizes, screen and furniture dimensions, height on forms, and any DIY project where the plan and the tape measure disagree.
Converting a height for a form, a passport or a profile.
Checking whether furniture will fit a space measured in the other unit.
Reading a clothing or shoe size chart from another country.
Working from a DIY plan in inches with a metric tape measure.
Converting screen or print dimensions for a design.
Examples
Centimeters
Inches
Feet and inches
1 cm
0.394 in
—
30 cm
11.811 in
0 ft 11.8 in
100 cm
39.370 in
3 ft 3.4 in
170 cm
66.929 in
5 ft 6.9 in
180 cm
70.866 in
5 ft 10.9 in
2.54 cm
1 in
Exactly one inch
Frequently Asked Questions
How many inches are in a centimeter?
One centimeter is 0.393701 inches. Divide centimeters by 2.54 to convert, or multiply by 0.4 for a rough estimate.
How do I convert inches to centimeters?
Multiply by 2.54, which is the exact defined ratio. So 12 inches × 2.54 = 30.48 centimeters, or one foot.
What is 180 cm in feet and inches?
180 centimeters is 70.87 inches, which is 5 feet 10.9 inches — a shade under 5 foot 11.
How do I read the fraction result?
Tape measures in inches are marked in sixteenths. The fraction tile rounds the conversion to the nearest sixteenth so you can find it on the tape.
How do I convert millimetres?
Divide millimetres by 10 to get centimeters, or by 25.4 to get inches directly. The millimetre figure is shown above for convenience.
What are common paper and screen sizes in both units?
A4 paper is 21 × 29.7 cm, or 8.27 × 11.69 inches; US Letter is 21.6 × 27.9 cm, or 8.5 × 11 inches. Screens are measured diagonally, so a 15.6-inch laptop display is 39.6 cm from corner to corner.
How precise does my conversion need to be?
For clothing and furniture, one decimal place is plenty. For joinery or engineering, work in millimetres — a rounding error of a tenth of an inch is 2.5 mm, which is easily enough to make a joint fail to close.
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