How to convert kilometers to miles
Every kilometer is 0.6214 miles, so the conversion is a single multiplication:
Worked example: 25 km → 25 × 0.621371 = 15.5343 mi.
Quick mental estimate: Divide by 1.6: 25 ÷ 1.6 ≈ 15.625 mi (exact: 15.5343).
Kilometers to miles conversion table
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 km | 0.6214 mi |
| 2 km | 1.2427 mi |
| 3 km | 1.8641 mi |
| 5 km | 3.1069 mi |
| 10 km | 6.2137 mi |
| 15 km | 9.3206 mi |
| 20 km | 12.4274 mi |
| 25 km | 15.5343 mi |
| 50 km | 31.0686 mi |
| 75 km | 46.6028 mi |
| 100 km | 62.1371 mi |
| 200 km | 124.27 mi |
| 250 km | 155.34 mi |
| 500 km | 310.69 mi |
| 1,000 km | 621.37 mi |
Values rounded to four decimals. For a value that is not in the table, use the converter above — it accepts decimals and negative numbers.
When you need this conversion
- Buying anything sized abroad: screens, bike frames, luggage limits and clothing patterns switch between metric and imperial depending on where they were made.
- DIY and construction: timber, pipe diameters and fixings are stocked in one system or the other, and a plan drawn in one has to be ordered in the second.
- Travel and sport: race distances, altitudes and road signs change unit at almost every border.
Getting it right
The arithmetic is a single multiplication, so mistakes almost never come from the calculation itself — they come from the value that goes into it. Check that the figure you are converting really is in kilometers and not in a neighbouring unit, and that you have not already converted it once.
Sanity-check the direction of the result before you use it. One kilometer is 0.6214 miles, so converting kilometers to miles should make the number smaller. If it moved the other way, the conversion was applied backwards — the reverse converter is one click away.
About the units
Kilometer (km)
The kilometer is 1 000 meters. It is the unit of road distance and speed limits in almost every country outside the United States.
Mile (mi)
The mile is 5 280 feet, or exactly 1 609.344 meters. It is the road-distance unit of the United States and the United Kingdom.
Frequently asked questions
How many miles are in 1 kilometer?
1 kilometer equals 0.6214 miles. To convert any value, multiply the number of kilometers by 0.621371.
How do I convert kilometers to miles in my head?
Divide by 1.6: 25 ÷ 1.6 ≈ 15.625 mi (exact: 15.5343).
Is the km to mi conversion exact?
1 mile is exactly 1.609344 km, so 0.621371 is 1 ÷ 1.609344 rounded.
How do I convert kilometers to miles in Excel or Google Sheets?
Put the value in A1 and use =A1*0.621371. Both Excel and Google Sheets also have a built-in function, =CONVERT(A1,"km","mi"), which avoids typing the factor by hand.
How many decimal places should I keep?
For everyday use two decimals are plenty. Keep four if the result feeds another calculation, and round only at the very end — rounding intermediate steps is the most common reason a result comes out slightly wrong.