Convert mi to km
A practical reference for converting miles (mi) to kilometers (km), a length unit. Type any value for an instant result, or use the reference table below.
1 mi = 1.609344 km
km = mi × 1.609344
Conversion formula
km = mi × 1.609344Multiply miles by 1.6 for a rough estimate. Handy for reading US road signs.
Quick reference table
| miles | kilometers |
|---|---|
| 1 mi | 1.6093 km |
| 2 mi | 3.2187 km |
| 3 mi | 4.828 km |
| 5 mi | 8.0467 km |
| 10 mi | 16.0934 km |
| 13.1 mi | 21.0824 km |
| 26.2 mi | 42.1648 km |
| 50 mi | 80.4672 km |
| 100 mi | 160.9344 km |
| 200 mi | 321.8688 km |
Need more units?
Use the full unit converter to switch between length, weight, temperature, area, speed, and data units in one place.
Open Unit ConverterFrequently asked questions
How many km is 1 mi?
1 mi equals 1.609344 km.
Why does my result differ slightly from other sites?
Rounding. This page displays four decimal places while the underlying calculation keeps full precision.
Is my input sent to a server?
No. Every calculation runs locally in your browser and nothing is transmitted.
All calculations on this page run in your browser. Your input is never sent to a server.