Miles per hour to Kilometers per hour
1 mph ≈ 1.609 km/h. Edit either value to convert instantly.
Conversion formula
km/h = mph × (0.44704) × (3.6)1 mph ≈ 1.60934 km/h
mile per hour (mph)
Mile per hour is a unit of speed: 1 mph = 0.44704 m/s.
Source: NIST SP 811, Appendix B.9: conversion factors by quantity
kilometer per hour (km/h)
Kilometer per hour is a unit of speed: 1 km/h = 5/18 m/s.
Source: BIPM, The International System of Units (SI), 9th edition
Conversion table
| mph | km/h |
|---|---|
| ≈ 1.60934 | |
| ≈ 3.21869 | |
| = 8.04672 | |
| ≈ 16.0934 | |
| ≈ 24.1402 | |
| ≈ 32.1869 | |
| = 40.2336 | |
| ≈ 48.2803 | |
| ≈ 64.3738 | |
| ≈ 72.4205 |
| mph | km/h |
|---|---|
| = 80.4672 | |
| ≈ 96.5606 | |
| ≈ 112.654 | |
| ≈ 128.748 | |
| ≈ 144.841 | |
| ≈ 160.934 | |
| ≈ 241.402 | |
| ≈ 257.495 | |
| ≈ 273.588 | |
| ≈ 289.682 |
Frequently asked questions
How many kilometers per hour are in 1 mile per hour?
1 mph ≈ 1.609 km/h. km/h = mph × (0.44704) × (3.6)
How do I convert mph to km/h?
km/h = mph × (0.44704) × (3.6)
Is 1 mile per hour bigger than 1 kilometer per hour?
1 mph ≈ 1.609 km/h.
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