Distance conversion
Kilometers to Miles Converter
Convert kilometers to statute miles using the exact international mile definition, with practical travel and race-distance checks.
Miles
- Miles
- 3.11 mi
What this calculator is for
Enter a distance in kilometers to convert it to statute miles. This is useful when a road sign, running plan, cycling route, or map uses kilometers but you think in miles.
The calculator uses the exact international definition of a mile: 1 mile equals 1.609344 kilometers. It converts the full value first, then the result display handles rounding. It does not convert nautical miles.
Formula
The math this page uses
Miles = Kilometers ÷ 1.609344 Equivalent factor: Miles = Kilometers × 0.621371192237334
How it works
Treat the input as kilometers and divide it by 1.609344.
The result is statute miles, the mile used for road distances and everyday travel.
Rounding changes only the displayed result, not the conversion relationship.
Visual guide
Quick calculator insights
Use these at-a-glance cards, checklists, and comparison tables to understand what the calculator is showing before you change assumptions or act on the result.
Common distance checks
- 1 km
- 0.62 mi
- Short walk or route segment
- 5 km
- 3.11 mi
- Standard 5K race
- 10 km
- 6.21 mi
- Standard 10K race
Kilometers to miles reference
| Kilometers | Miles |
|---|---|
| 1 km | 0.6214 mi |
| 5 km | 3.1069 mi |
| 10 km | 6.2137 mi |
| 42.195 km | 26.2188 mi |
| 100 km | 62.1371 mi |
How to use this calculator
- 01Enter the distance in kilometers.
- 02Read the converted distance in statute miles.
- 03Round only as much as your route, workout, or assignment requires.
Worked examples
Convert a 5K race
- Start with 5 kilometers.
- 5 ÷ 1.609344 = 3.106856 miles.
- Rounded to two decimals, a 5K is 3.11 miles.
Convert a 100 km drive
- Start with 100 kilometers.
- 100 ÷ 1.609344 = 62.137119 miles.
- Rounded to two decimals, the drive is 62.14 miles.
When to use it
- Translate running and cycling distances into miles.
- Interpret road-trip distances shown in kilometers.
- Check metric-to-imperial homework or spreadsheet conversions.
Tips
- For quick mental math, multiply kilometers by 0.62, then use the calculator when precision matters.
- Useful anchors: 5 km is 3.11 mi, 10 km is 6.21 mi, and 100 km is 62.14 mi.
- Keep distance units consistent before calculating pace or speed.
Limitations
- Converts kilometers to statute miles, not nautical miles.
- Does not calculate route shape, elevation, travel time, pace, or speed.
- A map or GPS source may already have rounded the starting distance.
Methodology & assumptions
- Uses the exact international relationship 1 mile = 1.609344 kilometers.
- Divides kilometers by 1.609344 to calculate statute miles.
- Leaves presentation rounding to the calculator result formatter.
Sources
Check the underlying references
Last reviewed 2026-07-20
- NIST Guide to the SI, Appendix B: Conversion Factors
Official conversion reference for the international mile and meter.
FAQs
How many miles are in 1 kilometer?+
One kilometer equals approximately 0.6213711922 statute miles.
How many miles is a 5K?+
Five kilometers equals 3.106856 miles, commonly rounded to 3.11 miles.
Does this use statute or nautical miles?+
It uses statute miles. One nautical mile equals 1.852 kilometers and requires a different conversion.
Why can another result differ slightly?+
Most small differences come from rounding the conversion factor or the displayed answer at different decimal places.