Square Kilometers to Square Miles Converter

Enter an area in square kilometers and instantly get the equivalent in square miles.

Convert Area

Quick Reference Table

km² mi²

Conversion factor: 1 km² = 0.386102159 mi²

Reverse factor: 1 mi² = 2.58998811 km²

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Summary

Enter an area in square kilometers and instantly get the equivalent in square miles.

How it works

  1. Type an area value in square kilometers into the input field.
  2. The converter multiplies your value by 0.386102159 to produce square miles.
  3. Results update instantly as you type — no button click required.
  4. Use the swap button to reverse the conversion direction.
  5. Copy the result with one click.

Use cases

  • Convert country or region sizes from km² to mi² for English-language reports.
  • Compare land areas when switching between metric and imperial systems.
  • Verify geographic data in mapping and GIS projects.
  • Convert real-estate or agricultural land measurements.
  • Check national park or wilderness area sizes in both units.
  • Homework and exam preparation for unit-conversion problems.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu