How it works
Convert the starting unit to metres, then divide by the metres per output unit.
A worked example
1 international mile = 1,609.344 metres. 1 foot = 0.3048 metres.
What to keep in mind
Uses international feet and miles, not historical survey units. Very small results are shown in scientific notation.
Common length conversions
1 inch = 2.54 cm. 1 foot = 30.48 cm. 1 metre = about 3.28 feet. 1 mile = about 1.609 km. 1 km = about 0.621 miles.
Worked examples
5 km is about 3.11 miles. 6 feet is about 1.83 metres. 180 cm is about 5.91 feet, or 5 feet 10.9 inches.
Converting height
To convert a height in centimetres to feet and inches, divide by 2.54 to get inches, then divide by 12. The whole number is feet and the remainder is inches.
Frequently asked questions
How many feet is 180 cm?
About 5.91 feet, or 5 feet 11 inches to the nearest inch.
How many miles is 5 km?
About 3.11 miles.
Are the conversion factors exact?
The metre relationships for the listed international units are exact. Displayed results may be rounded.
Results use the assumptions above. Check critical measurements and dates independently.