Length Converter

Convert between meters, feet, inches, centimeters, kilometers, miles, yards, and nautical miles instantly.

Length Converter tool

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Example

Input: 6 feet (ft) to centimeters (cm)

Result: 182.88 cm

One foot is defined as exactly 0.3048 m, so 6 x 0.3048 = 1.8288 m = 182.88 cm.

Common Length Conversions

FromTo
1 inch2.54 cm
1 foot30.48 cm
1 yard0.9144 m
1 meter3.28084 ft
1 meter39.370079 in
1 mile1.609344 km
1 kilometer0.621371 mi
5 km3.106856 mi
10 km6.213712 mi
42.195 km (marathon)26.218757 mi
1 nautical mile1.150779 mi
70 in (5 ft 10 in)177.8 cm
180 cm5.905512 ft

Values from this converter, rounded to 6 decimal places.

  1. Select the source length unit (e.g., meters, feet, inches) from the input dropdown.
  2. Enter the numeric value you want to convert in the input field.
  3. View the converted values across all supported length units displayed instantly below.
  4. Click the copy button next to any result to copy the converted value to your clipboard.
  5. Switch the source unit at any time to convert from a different length measurement.

Converting Meters, Feet, Miles and More

To convert a length, you multiply by a fixed factor. One inch is exactly 2.54 cm, one foot is 30.48 cm, and one mile is 1.609344 km. This converter handles meters, feet, inches, centimeters, kilometers, miles, yards and nautical miles. Type a value, pick two units, and you also get the answer in every other unit at once.

Most of these factors are exact, not rounded. The inch, foot, yard and mile have all been tied to the meter since 1959. The tool shows up to 6 decimal places. That is far more than you need to plan a room or a road trip.

A few rules of thumb help when you are away from a screen. A meter is a bit more than 3 feet 3 inches. A kilometer is about 0.62 miles, so a 5 km run is just over 3 miles. To go from miles to kilometers, multiply by 1.6.

Watch out for two common mix-ups. First, a nautical mile (1,852 m) is longer than a land mile (1,609.344 m). It is the unit behind knots in the Speed Converter. Second, a height such as 5 ft 10 in must become one unit before you convert it. That is 5 x 12 + 10 = 70 inches, or 177.8 cm. If you need floor space rather than distance, use the Area Converter instead.

Formula / How It Works

1 meter = 3.28084 ft = 39.3701 in = 100 cm = 0.001 km = 0.000621371 mi = 1.09361 yd = 0.000539957 nm

Sources

Frequently Asked Questions

One meter is 3.28084 feet, or about 3 feet 3.37 inches. To turn meters into feet, multiply by 3.28084, so 2 meters is 6.56 feet. To go from feet to meters, multiply by 0.3048. That factor is exact, so 10 feet is exactly 3.048 meters.
Multiply the miles by 1.6. Ten miles is about 16 km, and the exact answer is 16.09 km. To go the other way, multiply kilometers by 0.6, or use the ratio 5 miles to 8 km. So 8 km is about 5 miles (4.97 to be exact).
It is 177.8 cm. Heights in feet and inches need one step first: turn the feet into inches and add the rest. Here that is 5 x 12 + 10 = 70 inches. Then multiply by 2.54, or type 70 into the converter with inches as the From unit.
180 cm is 5.91 feet, or about 5 feet 10.9 inches. The converter gives 70.87 inches for 180 cm. Divide that by 12 to get 5 whole feet, and the 10.87 inches left over are the rest. Rounded to the nearest inch, most people would call it 5 foot 11.
A nautical mile is exactly 1,852 meters, about 1.15 land miles. It was first based on one minute of latitude, which makes it handy on charts. Ships and aircraft still use it. Speed at sea and in the air is given in knots, which means nautical miles per hour.
Yes. Since 1959 the inch has been defined as exactly 2.54 cm, and the yard as exactly 0.9144 m. The foot and the mile follow from those, so 1 foot is exactly 30.48 cm and 1 mile is exactly 1,609.344 m. Only the display on the screen is rounded.

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