Miles to Kilometers Conversion

Quick formula: km = miles × 1.609 — with common conversions

⚡Quick Answer

1 mile = 1.60934 kilometers. Quick trick: multiply miles by 1.6 for a fast estimate. 5 miles = 8 km, 10 miles = 16 km.

miles

1.61km

km = miles × 1.60934 — For quick estimates, just multiply by 1.6.

💡1.6 is easy to remember and gives you a close approximation!

1 mile = 1.6 km | 5 miles = 8 km | 10 miles = 16 km | 26.2 miles (marathon) = 42.2 km | 100 miles = 161 km

💡The marathon distance is a great reference point: 26.2 mi = 42.2 km.

Multiply by 1.6 or use the Fibonacci trick: miles to km is roughly like Fibonacci numbers (3→5, 5→8, 8→13).

💡5 miles ≈ 8 km follows the Fibonacci sequence!

Convert 15 miles to km: 15 × 1.6 = 24 km (exact: 24.14 km).

💡For most purposes, multiplying by 1.6 is accurate enough.

1 mile equals exactly 1.60934 kilometers. For quick math, use 1.6 km per mile.

Divide kilometers by 1.609, or multiply by 0.621. For quick math: km × 0.6 gives a rough estimate.

The US, UK (for roads), and a few others use miles. Most of the world uses kilometers.

Was this helpful?