Miles to KM Converter (Miles to Kilometers)
Convert miles to kilometers instantly with 5-decimal precision, mph to km/h speed readings, highway references, and one-click distance presets.
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Formula: km = miles × 1.60934
Miles to KM Reference Table
| Miles | Kilometers | mph → km/h |
|---|
Sri Lanka Expressway & Travel Distances (Miles to KM)
If your vehicle speedometer or GPS navigation is set to miles, here is the conversion for key travel routes across Sri Lanka:
| Route / Destination | Miles (mi) | Kilometers (km) | Route Category |
|---|---|---|---|
| Southern Expressway (E01) — Kottawa to Hambantota | 137.94 mi | 222.0 km | Toll Expressway |
| Colombo to Galle (via E01) | 72.08 mi | 116.0 km | Toll Expressway |
| Colombo to Kandy (A1 Highway) | 71.46 mi | 115.0 km | National Highway |
| Katunayake Airport Expressway (E03) | 16.03 mi | 25.8 km | Airport Expressway |
| Central Expressway (E04) — Mirigama to Kurunegala | 25.48 mi | 41.0 km | Toll Expressway |
| Colombo to Jaffna (A9 Highway) | 246.06 mi | 396.0 km | National Highway |
| Colombo to Nuwara Eliya (Hill Country) | 99.42 mi | 160.0 km | Mountain Highway |
Speed Conversion Reference (MPH to KM/H)
Match your vehicle's mph speedometer against Sri Lanka and global highway speed limits:
| Speed (mph) | Equivalent (km/h) | Road Context |
|---|---|---|
| 62.14 mph | 100 km/h | Sri Lanka Expressway maximum legal speed |
| 43.50 mph | 70 km/h | Sri Lanka National Highway rural speed limit |
| 31.07 mph | 50 km/h | Sri Lanka City and Municipal town speed limit |
| 18.64 mph | 30 km/h | School, Hospital, and Pedestrian safety zones |
| 70.00 mph | 112.65 km/h | US/UK standard interstate motorway limit |
| 80.00 mph | 128.75 km/h | High-speed open European motorway limit |
Athletic Race & Marathon Conversion (Miles to KM)
| Distance (Miles) | Kilometers (km) | Standard Event |
|---|---|---|
| 3.11 miles | 5.0 km | 5K Road Run / Parkrun |
| 6.21 miles | 10.0 km | 10K Road Race |
| 10.00 miles | 16.09 km | 10-Mile Challenge |
| 13.11 miles | 21.0975 km | Half Marathon |
| 26.22 miles | 42.195 km | Full Official Marathon |
| 31.07 miles | 50.0 km | 50K Ultra Marathon |
Frequently Asked Questions
How many km is 1 mile?
1 mile = 1.60934 km. For a rough estimate, multiply by 1.6.
What is a marathon in miles?
A full marathon is 26.2 miles = 42.195 km. A half marathon is 13.1 miles = 21.097 km.
What is 60 mph in km/h?
60 mph × 1.60934 = 96.56 km/h.