Kilometers per hour to Miles per hour
Converter

Convert kilometers per hour to miles per hour quickly and accurately using this free online converter

km/h to mph — Quick Reference

Used for driving speed limits, athletic performance, and vehicle specs.

💡 The US and UK use mph; most countries use km/h for speed limits.

Formula

mph = km/h × 0.621372

Example: 1 km/h × 0.621372 = 0.621372 mph

When to Use mph

Use mph for US/UK; km/h for international contexts.

Common uses: driving, athletics, and vehicle performance.

Frequently Asked Questions

How do I convert km/h to mph?

Multiply the value in Kilometers per hour by 0.621372. For example: 10 km/h = 6.2137 mph.

When should I use Miles per hour instead of Kilometers per hour?

Use mph for US/UK; km/h for international contexts.

Is this converter accurate?

Yes. We use internationally recognized conversion factors, updated to current standards.

Kilometers per hour to Miles per hour conversion table

Kilometers per hour (km/h)Miles per hour (mph)
10 km/h6.2137 mph
20 km/h12.4274 mph
30 km/h18.6412 mph
50 km/h31.0686 mph
60 km/h37.2823 mph
80 km/h49.7097 mph
100 km/h62.1372 mph
120 km/h74.5646 mph
150 km/h93.2058 mph
200 km/h124.2743 mph

Related Speed converters

Scroll to Top