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.
A common question
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.