Miles to Kilometers Converter
Convert miles to kilometers, or switch direction to convert kilometers to miles.
Convert a distance
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YOUR RESULT
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One exact conversion factor
1 international mile = 1.609344 kilometers
Multiply miles by 1.609344 to get kilometers. Divide kilometers by 1.609344 to get miles. This tool uses international land miles, not nautical miles or the legacy U.S. survey mile.
| Distance | Converted distance |
|---|---|
| 1 mi | 1.609344 km |
| 5 mi | 8.04672 km |
| 1 km | ≈0.6213711922 mi |
| 0 mi | 0 km |
Precision & limits
Zero is accepted; negative distances are rejected. Enter a decimal point without commas, or scientific notation. Inputs are limited to 1 trillion, with nonzero values at least 1e-12. The conversion constant is exact; displayed results use up to 12 significant digits and standard floating-point arithmetic.
Source: NIST unit conversion factors, checked October 10, 2026. No external resource is loaded unless you choose to follow the link.