How to use Length Converter
All lengths are first represented in metres and then divided by the target unit’s metre equivalent. International inches, feet, yards and miles are used. This avoids mixing modern definitions with historical survey units.
Keep length separate from area and volume. Converting a square foot requires squaring the length factor; use the area converter rather than this tool for a plot or floor size.
The formula
Result = value × source-unit metres / target-unit metres
1 international foot = 0.3048 metres exactly
A worked example
Value to convert: 1 · From: Metres · To: Feet
Converted value: 3.280839895 Feet
International foot and mile definitions; historical survey units excluded.
Questions about this calculation
Is one foot exactly 0.3048 metres?
Yes, for the international foot used by this calculator.
Can I convert square feet here?
No. Use the area converter because area conversion factors are squared.
Formula checks: 2026-10-08. Assumptions & corrections.