Summary
Convert common metric, imperial, and US customary length units.
Calculation details
All factors use the exact meter definitions where available.
Formula
Result = value × source meters ÷ target meters.
Worked example
Worked conversion
1 mile equals 1.609344 kilometers.
How it works
Enter a length, then choose source and target units. Factors use exact meter definitions where available.
Frequently asked questions
Does the calculation round the input?
No. The converter retains raw JavaScript numeric precision and delegates visible rounding to the existing display formatter.
Which unit definitions are used?
Factors are centralized relative to the meter and use exact definitions where available.