Kilometers to Miles
Result:
0 miles
Miles to Kilometers
Result:
0 kilometers
The gear these numbers assume
Every pace, zone and power figure on this page assumes something is measuring it. These are the three that cover running, cycling and the threshold work in between.
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Kilometers to Miles Reference
1.0 km is 0.621 mi, and this reference steps through kilometer distances with their mile equivalents, marking events such as the 1500m along the way.
| Kilometers | Miles | Event |
|---|---|---|
| 1.0 km | 0.621 mi | Track |
| 1.1 km | 0.684 mi | - |
| 1.2 km | 0.746 mi | - |
| 1.5 km | 0.932 mi | 1500m |
| 1.6 km | 0.994 mi | ≈ 1 mile |
| 2.0 km | 1.243 mi | - |
| 3.0 km | 1.864 mi | 3K |
| 5.0 km | 3.107 mi | 5K Race |
| 10 km | 6.214 mi | 10K Race |
| 15 km | 9.321 mi | 15K |
| 20 km | 12.427 mi | 20K |
| 21.097 km | 13.109 mi | Half Marathon |
| 25 km | 15.534 mi | 25K |
| 30 km | 18.641 mi | 30K |
| 42.195 km | 26.219 mi | Marathon |
| 50 km | 31.069 mi | 50K Ultra |
| 60 km | 37.282 mi | 60K |
| 70 km | 43.496 mi | 70K |
| 80 km | 49.710 mi | 80K |
| 90 km | 55.923 mi | 90K |
| 100 km | 62.137 mi | 100K Ultra |
Miles to Kilometers Reference
3.1 miles is 5.0 km, the 5K, and this reference runs the other direction, giving the kilometer equivalent of each mile distance you might race.
| Miles | Kilometers | Event |
|---|---|---|
| 1 mile | 1.609 km | Mile |
| 2 miles | 3.219 km | - |
| 3 miles | 4.828 km | - |
| 3.1 miles | 5.0 km | 5K |
| 5 miles | 8.047 km | 5 Miler |
| 6 miles | 9.656 km | - |
| 6.2 miles | 10.0 km | 10K |
| 10 miles | 16.093 km | 10 Miler |
| 13.1 miles | 21.097 km | Half Marathon |
| 15 miles | 24.140 km | - |
| 20 miles | 32.187 km | 20 Miler |
| 26.2 miles | 42.195 km | Marathon |
| 30 miles | 48.280 km | 30 Miler |
| 31.07 miles | 50.0 km | 50K |
| 40 miles | 64.374 km | - |
| 50 miles | 80.467 km | 50 Miler |
| 62.14 miles | 100.0 km | 100K |
| 100 miles | 160.934 km | 100 Miler |
Conversion Formulas
Kilometers to Miles
miles = km × 0.621371
Example: 5km × 0.621371 = 3.107 miles
Miles to Kilometers
km = miles × 1.60934
Example: 3.1 miles × 1.60934 = 4.989 km
📚 Master Distance Conversions
Learn how to use both metric and imperial systems for training
KM to Miles Chart for Runners
Complete printable conversion chart with all race distances.
Marathon Training Guide
Train for 42.2km (26.2 miles) with our complete guide.
Running Pace Training
Master pace training in kilometers or miles per hour.
10K Training Plan
Complete 10 kilometer (6.2 mile) training program.
5K to 10K Progression
Progress from 5km to 10km with structured training.
🗺️ Explore the Marathon Training Hub
Access all related calculators, guides, and training plans in one place.
Frequently Asked Questions
How many miles is 1.6 kilometers?
1.6 kilometers equals 0.994 miles, which is approximately 1 mile. This is why a 1600m track race is often called the metric mile.
How many miles is 5K?
5 kilometers equals 3.107 miles. A 5K race is the most popular running distance worldwide.
How many miles is 10K?
10 kilometers equals 6.214 miles. The 10K is a standard road racing and track distance.
How many miles is 100K?
100 kilometers equals 62.137 miles. The 100K is a popular ultra-marathon distance.
How many miles is 1.1 km?
1.1 kilometers is 0.684 miles (1.1 x 0.621371). That is about 1,203 yards, or just under 2.75 laps of a 400 m track.
How many miles is 2.0 km?
2.0 km is 1.243 miles (2 x 0.621371). That is five laps of a 400 m track, or about 2,187 yards. A 2 km run at a 10 minute per mile pace takes about 12 minutes 26 seconds.
How many miles is 5.0 km?
5.0 km is 3.107 miles, the standard 5K race distance. On a 400 m track that is 12.5 laps. A 5.0 km run at 9 minutes per mile takes just under 28 minutes; check your finish time with the running pace calculator.
How many miles is a 15K?
A 15K is 9.32 miles.
How many miles is a 50K?
A 50K is 31.07 miles, the shortest standard ultramarathon distance and 4.8 miles longer than a marathon.
Sources
- 1 mile = 1.609344 km exactly, and 1 km = 0.621371 miles (international mile, NIST Handbook 44)
- Race distances: World Athletics (marathon 42.195 km)
Researched from published specs and standards, not professional medical or coaching advice. Updated 2026.