Speed Converter
Convert between km/h, mph, and m/s.
From
To
Quick Speed Reference
| From | To | Conversion |
|---|---|---|
| km/h (km/h) | mph (mph) | mph = km/h × 0.621371 |
| mph (mph) | km/h (km/h) | km/h = mph × 1.60934 |
| m/s (m/s) | km/h (km/h) | km/h = m/s × 3.6 |
| km/h (km/h) | m/s (m/s) | m/s = km/h ÷ 3.6 |
Common Speed Conversions
A 50 km/h urban limit
Convert km/h to mph.
50 × 0.62137131.07 mph
A 60 mph US interstate
Convert mph to km/h.
60 × 1.6093496.56 km/h
A walking pace of 1.4 m/s
Convert m/s to km/h.
1.4 × 3.65.04 km/h
A car at 72 km/h
Convert km/h to m/s.
72 ÷ 3.620 m/s
Speed Conversion Questions
How do I convert km/h to mph?+
Multiply the speed in km/h by 0.621371. For example, 80 km/h × 0.621371 = 49.71 mph.
What is 100 km/h in mph?+
100 km/h is 62.14 mph.
What is 120 km/h in mph?+
120 km/h is 74.56 mph.
What is 130 km/h in mph?+
130 km/h is 80.78 mph, the standard motorway limit in France.
What is 50 km/h in mph?+
50 km/h is 31.07 mph, a very common urban speed limit.