What this tool does
The converter uses exact international definitions, including one inch equal to exactly 25.4 millimetres.
Formula
Convert the source value to metres, then convert metres to the target unit.
Examples
1 in
25.4 mm
100 ft
30.48 m
Frequently asked questions
Which inch definition is used?
The international inch, exactly 25.4 millimetres.
Is the conversion done by AI?
No. It uses fixed deterministic conversion factors.