Popular Length Conversions
The converter above handles any pair of units. These are the conversions people look up most, with the formula behind each so you can check the maths yourself.
CM to Feet Converter
To convert centimeters to feet, divide the length in cm by 30.48, because one foot is exactly 30.48 cm. A height of 170 cm is 5.58 ft, or 5′ 6.9″ in feet and inches. For feet and inches, take the whole number of feet and multiply the remainder by 12.
feet = cm ÷ 30.48Inches to CM
To convert inches to centimeters, multiply the inches by 2.54. This factor is exact by definition, so there is no rounding in the formula itself. A 15.6-inch laptop screen measures 39.6 cm across the diagonal. To go the other way, divide centimeters by 2.54.
cm = inches × 2.54Meters to Yards
One yard is exactly 0.9144 meters, so divide meters by 0.9144, or multiply by 1.0936, to get yards. A 100 m sprint is 109.36 yards. Yards are still used for sports fields and fabric, which is why this is a common conversion.
yards = meters ÷ 0.9144Feet to Meters
Multiply feet by 0.3048 to get meters. A 6 ft doorway is 1.829 m high. Aviation altitudes and room dimensions are often given in feet, so this one comes up outside of height conversions too.
meters = feet × 0.3048KM to Miles
Divide kilometers by 1.609344 to get miles. A 10 km run is 6.21 miles. A rough mental shortcut is to multiply by 0.62.
miles = km ÷ 1.609344Quick Conversion Table
Common values for centimeters in inches and feet. Heights are the most searched use, so the table includes the usual range from 150 cm to 200 cm.
| Centimeters (cm) | Inches (in) | Feet (ft) | Feet & inches |
|---|---|---|---|
| 1 cm | 0.3937 in | 0.0328 ft | 0′ 0.4″ |
| 5 cm | 1.9685 in | 0.164 ft | 0′ 2″ |
| 10 cm | 3.937 in | 0.3281 ft | 0′ 3.9″ |
| 25 cm | 9.8425 in | 0.8202 ft | 0′ 9.8″ |
| 50 cm | 19.685 in | 1.6404 ft | 1′ 7.7″ |
| 100 cm | 39.3701 in | 3.2808 ft | 3′ 3.4″ |
| 150 cm | 59.0551 in | 4.9213 ft | 4′ 11.1″ |
| 160 cm | 62.9921 in | 5.2493 ft | 5′ 3″ |
| 170 cm | 66.9291 in | 5.5774 ft | 5′ 6.9″ |
| 175 cm | 68.8976 in | 5.7415 ft | 5′ 8.9″ |
| 180 cm | 70.8661 in | 5.9055 ft | 5′ 10.9″ |
| 190 cm | 74.8031 in | 6.2336 ft | 6′ 2.8″ |
| 200 cm | 78.7402 in | 6.5617 ft | 6′ 6.7″ |
Length Units Compared
Metric units scale by powers of ten, while imperial and US customary units do not. This is the reference behind every conversion on this page.
| Unit | Equals |
|---|---|
| 1 inch | 2.54 cm |
| 1 foot | 12 inches = 0.3048 m |
| 1 yard | 3 feet = 0.9144 m |
| 1 mile | 1,760 yards = 1,609.344 m |
| 1 kilometer | 1,000 m = 0.6214 mi |
Frequently Asked Questions
How do I convert cm to feet?
Divide the number of centimeters by 30.48. For example, 180 cm ÷ 30.48 = 5.91 feet, which is 5′ 10.9″. You can also type the value into the converter above and the result updates instantly.
How many cm are in a foot?
One foot is exactly 30.48 centimeters. This is the international definition: 1 foot = 0.3048 meters.
How do I convert inches to cm?
Multiply the number of inches by 2.54. For example, 12 inches × 2.54 = 30.48 cm. One inch is defined as exactly 2.54 centimeters.
How many yards are in a meter?
One meter equals 1.0936 yards. Multiply meters by 1.0936 to get yards, or divide yards by 1.0936 to get meters.
How many kilometers are in a mile?
One mile equals 1.609 kilometers. Multiply miles by 1.609344 to get kilometers.
Is this length converter accurate?
Yes. Every unit is converted through the meter using the exact international definitions (1 inch = 2.54 cm, 1 foot = 0.3048 m, 1 yard = 0.9144 m, 1 mile = 1,609.344 m). Results are rounded to 10 significant digits only to hide floating-point noise.