5 kilometers per hour to miles per hour
3.1 mph
5 km/h = 3.1 mph.
miles per hour
3.1mph
5 km/h = 3.1 mph
The short answer
How many miles per hour is 5 kilometers per hour?
5 km/h = 3.1 mph. 1 kilometers per hour = 0.621371 miles per hour, so the working is 5 × 0.621371 = 3.1.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 kilometers per hour = 0.621371 miles per hour 5 × 0.621371 = 3.1
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (mph) | Off by |
|---|---|---|
| Whole number | 3 | −0.10686 |
| 1 decimal | 3.1 | −0.00686 |
| 2 decimals | 3.11 | +0.00314 |
Round trip: take 3.1 mph back the other way and you land on 4.9890 km/h — a drift of 0.0110 km/h. That gap is the rounding, not the conversion.
What 5 km/h looks like
5 km/h
Five kilometres per hour is about the pace a healthy adult picks unprompted on flat ground, roughly 1.4 metres per second.
Frequently asked questions
What is 5 kilometers per hour in miles per hour?
5 kilometers per hour is 3.1 miles per hour. 1 kilometers per hour = 0.621371 miles per hour, so the working is 5 × 0.621371 = 3.1.
How accurate is 3.1 mph?
Rounding to 3.1 mph and converting straight back gives 4.9890 km/h, a drift of 0.0110 km/h from the 5 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
KM/H to MPH Converter
Kilometers per hour to miles per hour — read a metric speed limit in your own units.
Open the km/h to mph converter →