Convert between millimetres, centimetres, metres, kilometres, inches, feet, yards and miles using fixed unit definitions.
Converted value = input × source factor in metres / target factor in metres. One inch = 0.0254 m; one foot = 0.3048 m; one mile = 1609.344 m.
6 feet = 1.8288 m. 10 inches = 25.4 cm. 5 kilometres ≈ 3.106856 miles.
Enter a single unit at a time. Convert 5 feet 9 inches as 69 inches, not 5.9 feet. These are international feet and statute miles; nautical miles and historic survey feet are different units.
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Editorial responsibility: Nicolas Belotti · Methods and testing · Report an error
English edition: 16 September 2026.