Convert Miles to Kilometers – Length Converter
Use this converter to move seamlessly between mile and kilometer with instant precision.
Interactive Converter
Convert between mile and kilometer with precision rounding.
Quick reference table
| Mile | Kilometer |
|---|---|
| 1 mi | 1.6093 km |
| 5 mi | 8.0467 km |
| 10 mi | 16.0934 km |
| 25 mi | 40.2336 km |
| 50 mi | 80.4672 km |
| 100 mi | 160.9344 km |
How to use this Mile converter
- 1. Enter the value you want to convert in the first input field. You can type decimals or whole numbers.
- 2. The result updates instantly with our high-precision formulas, rounding to sensible decimal places for practical use.
- 3. Use the swap button to reverse the calculation and move from kilometer back to mile.
Conversion formula explained
To convert mile to kilometer, multiply the input value by the precise conversion factor derived from international measurement standards. The formula looks like this:
km = (mi × 1.609344)
We compute the factor using the SI base unit as the truth source to guarantee accuracy even across chained conversions (e.g., meters → feet → inches).
Expert Q&A
What is the exact formula for mile to kilometer?
Multiply your value in mile by 1.609344 to obtain the equivalent in kilometer.
Can I convert kilometer back to mile?
Yes. Hit the swap button in the converter to reverse the calculation or multiply your kilometer value by 0.62137119 to switch back.
How accurate is this converter?
We anchor every conversion to internationally recognized base units. The calculator rounds to sensible decimals for readability, but core math runs at double precision.