KM to Miles Converter (Kilometers to Miles)
Convert kilometers to miles instantly. Accurate to 5 decimal places with speed conversion (km/h to mph), road travel charts, and running race presets.
—
Popular Presets:
Formula: Miles = Kilometers × 0.621371
KM to Miles Reference Table
| Kilometers | Miles | KM/H → MPH |
|---|
Sri Lanka Expressway & Highway Travel Distances (KM to Miles)
Planning a road trip or expressway drive across Sri Lanka? Here is a practical conversion reference for major national highways and expressway routes:
| Route / Destination | Kilometers (km) | Miles (mi) | Drive Time (Approx) |
|---|---|---|---|
| Southern Expressway (E01) — Kottawa to Hambantota | 222 km | 137.94 miles | ~2 hrs 15 mins |
| Colombo to Galle (via E01 Expressway) | 116 km | 72.08 miles | ~1 hr 15 mins |
| Colombo to Kandy (A1 Highway) | 115 km | 71.46 miles | ~3 hrs 15 mins |
| Katunayake Airport Expressway (E03) — New Kelani to BIA | 25.8 km | 16.03 miles | ~20 mins |
| Central Expressway (E04) — Mirigama to Kurunegala | 41 km | 25.48 miles | ~30 mins |
| Colombo to Jaffna (A9 Highway via Dambulla) | 396 km | 246.06 miles | ~7 hrs 30 mins |
| Colombo to Nuwara Eliya (via Hatton/Gampola) | 160 km | 99.42 miles | ~4 hrs 45 mins |
| Colombo to Anuradhapura (A28 / A12) | 206 km | 128.00 miles | ~4 hrs 15 mins |
Speed Limit Conversion Guide (KM/H to MPH)
Sri Lanka traffic law strictly enforces speed limits in km/h. If you are driving an imported car or using GPS displays measuring in mph, use these essential benchmarks:
| Zone / Road Category | Speed Limit (km/h) | Speed Limit (mph) | Law / Enforcement Note |
|---|---|---|---|
| Sri Lanka Expressways (E01, E02, E03, E04) | 100 km/h | 62.14 mph | Enforced with radar speed cameras |
| Standard Highway / Open Rural Roads | 70 km/h | 43.50 mph | Applies to light vehicles and passenger cars |
| Urban & Municipal Town Limits (Built-up Areas) | 50 km/h | 31.07 mph | City roads, Colombo municipal areas |
| School, Hospital & High Pedestrian Zones | 30 km/h | 18.64 mph | Signposted reduced safety speed limits |
| UK / US Motorway Standard Maximum | 112.7 km/h | 70.00 mph | Standard overseas highway cruising speed |
Athletic Running Races & Marathon Distance Chart
Standard international race distances compared between metric kilometers and miles:
| Event Name | Kilometers (km) | Miles (mi) | Standard Target Pace (Approx) |
|---|---|---|---|
| Parkrun / 5K Road Race | 5.0 km | 3.11 miles | 20–35 mins |
| 10K Classic Distance | 10.0 km | 6.21 miles | 45–70 mins |
| 15K Road Championship | 15.0 km | 9.32 miles | 1 hr 15 mins – 1 hr 45 mins |
| Half Marathon (21.1K) | 21.0975 km | 13.11 miles | 1 hr 45 mins – 2 hrs 30 mins |
| Full Official Marathon (42.2K) | 42.195 km | 26.22 miles | 3 hrs 30 mins – 5 hrs 00 mins |
| 50K Ultra Marathon | 50.0 km | 31.07 miles | 4 hrs 30 mins – 7 hrs |
Frequently Asked Questions
How many miles is 1 km?
1 kilometer = 0.621371 miles. For a quick rough estimate, multiply by 0.62.
What is 100 km in miles?
100 km = 100 × 0.621371 = 62.14 miles. So 100 km/h ≈ 62 mph.
Is km bigger than a mile?
No. A mile is longer than a kilometer. 1 mile = 1.60934 km, about 60% longer.