Length converter
Convert metres, feet, inches and more.
Open toolFeet to Millimetres
Convert feet (ft) to millimetres (mm) with a copyable result.
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THE QUICK GUIDE
How to use feet to millimetres
Enter a value in feet, choose your display precision, and select Convert. Use Swap units to calculate the reverse direction.
How it works
Length conversion: multiply the value in ft by 304.8 to obtain mm. Both units are related through metres.
A useful example
1 ft = 304.8 mm.
Good to know
Uses length units as labelled. Floating-point arithmetic is approximate; results show up to 12 significant digits. Very large or small results use scientific notation.