Miles to Kilometers

Convert miles to km instantly — exact factor, works in both directions.

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Exact formula: 1 mile = 1.60934 km

📋 Quick Conversion Table

Miles (mi)Kilometers (km)
1 mi1.60934 km
5 mi8.04672 km
10 mi16.0934 km
25 mi40.2336 km
50 mi80.4672 km
100 mi160.934 km

🔁 How to Use This Converter

  1. 1.Type in either box. Enter miles in the top box or kilometers in the bottom box — the other side updates as you type.
  2. 2.Use the swap button. One tap flips the direction, so the same page converts kilometers back to miles.
  3. 3.Trust the exact factor. Every result uses 1 mile = 1.609344 km — the exact international definition, not a rounded shortcut.
  4. 4.Check the quick table. Common road-trip and race distances are pre-calculated below the converter.

❓ FAQ

How many kilometers is 10 miles?

10 miles equals 16.0934 kilometers. A 10-mile drive is a little over 16 km.

How do I convert miles to kilometers?

Multiply the miles by 1.60934. For a quick mental estimate, multiply by 8 and divide by 5 — 10 miles becomes about 16 km.

Why does the US use miles instead of kilometers?

The US customary system kept the mile from British imperial units. Most of the world uses kilometers, so converting is handy for travel, running races and car specs.

Is this miles to kilometers converter free?

Yes — 100% free, no sign-up. Conversions happen in your browser; nothing is uploaded, saved or tracked.

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