1 kilometers to miles
0.62 mi
1 km = 0.62 mi.
miles
0.62mi
1 km = 0.62 mi
The short answer
How many miles is 1 kilometers?
1 km = 0.62 mi. 1 kilometer = 0.621371 miles, so the working is 1 × 0.621371 = 0.62.
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 kilometer = 0.621371 miles 1 × 0.621371 = 0.62
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 (mi) | Off by |
|---|---|---|
| Whole number | 1 | +0.37863 |
| 1 decimal | 0.6 | −0.02137 |
| 2 decimals | 0.62 | −0.00137 |
Round trip: take 0.62 mi back the other way and you land on 0.9978 km — a drift of 0.0022 km. That gap is the rounding, not the conversion.
Frequently asked questions
What is 1 kilometers in miles?
1 kilometers is 0.62 miles. 1 kilometer = 0.621371 miles, so the working is 1 × 0.621371 = 0.62.
How accurate is 0.62 mi?
Rounding to 0.62 mi and converting straight back gives 0.9978 km, a drift of 0.0022 km from the 1 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 to Miles Converter
Convert kilometers to miles — race distances, road signs, and trip odometers.
Open the km to miles converter →