Common Race Distances: KM to Miles
| Race Name | Kilometers | Miles | Meters |
|---|---|---|---|
| 1K | 1 km | 0.62 miles | 1,000 m |
| 1 Mile | 1.609 km | 1 mile | 1,609 m |
| 3K | 3 km | 1.86 miles | 3,000 m |
| 5K | 5 km | 3.1 miles | 5,000 m |
| 8K | 8 km | 4.97 miles | 8,000 m |
| 10K | 10 km | 6.2 miles | 10,000 m |
| 15K | 15 km | 9.3 miles | 15,000 m |
| 10 Miles | 16.09 km | 10 miles | 16,093 m |
| 20K | 20 km | 12.4 miles | 20,000 m |
| Half Marathon | 21.0975 km | 13.1 miles | 21,097 m |
| 25K | 25 km | 15.5 miles | 25,000 m |
| 30K | 30 km | 18.6 miles | 30,000 m |
| Marathon | 42.195 km | 26.2 miles | 42,195 m |
| 50K Ultra | 50 km | 31.1 miles | 50,000 m |
| 50 Mile Ultra | 80.47 km | 50 miles | 80,467 m |
| 100K Ultra | 100 km | 62.1 miles | 100,000 m |
Quick KM to Miles Reference (1-50 km)
1-10 KM
11-20 KM
21-30 KM
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.
Garmin Forerunner 965
Multisport with the training-load and threshold metrics most of these calculations assume you can actually see day to day.
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COROS APEX 2 Series GPS Watch
Sapphire titanium and the longest battery in its class, which is the deciding feature once sessions run past a few hours.
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Favero Assioma Uno Power Meter Pedal
Single-sided pedal power, the cheapest honest way to start training with watts instead of estimating from heart rate.
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KM to Miles Conversion Formula
KM to Miles
Example: 10 km × 0.621371 = 6.21 miles
Miles to KM
Example: 6.2 miles × 1.60934 = 9.98 km
Quick Mental Math Tip: To quickly estimate km to miles, multiply by 0.6. For miles to km, multiply by 1.6. These approximations are accurate within 3%.
Pace Conversion: Min/KM to Min/Mile
| Pace (min/km) | Pace (min/mile) | 5K Time | 10K Time | Half Marathon | Marathon |
|---|---|---|---|---|---|
| 4:00 | 6:26 | 20:00 | 40:00 | 1:24:23 | 2:48:46 |
| 4:30 | 7:14 | 22:30 | 45:00 | 1:34:55 | 3:09:50 |
| 5:00 | 8:03 | 25:00 | 50:00 | 1:45:29 | 3:30:58 |
| 5:30 | 8:51 | 27:30 | 55:00 | 1:56:02 | 3:52:04 |
| 6:00 | 9:39 | 30:00 | 1:00:00 | 2:06:35 | 4:13:10 |
| 6:30 | 10:28 | 32:30 | 1:05:00 | 2:17:08 | 4:34:16 |
| 7:00 | 11:16 | 35:00 | 1:10:00 | 2:27:41 | 4:55:22 |
| 7:30 | 12:04 | 37:30 | 1:15:00 | 2:38:14 | 5:16:28 |
| 8:00 | 12:53 | 40:00 | 1:20:00 | 2:48:47 | 5:37:34 |
Need Custom Conversions?
Use our free KM to Miles Calculator for instant conversions with pace and race time predictions.
Open KM to Miles CalculatorWhy KM to Miles Conversions Matter for Runners
Understanding distance conversions is essential for runners who train with international resources, travel for races, or use GPS watches that switch between metric and imperial units.
Common Scenarios Where You Need Conversions
- International Races: Most world major marathons display distances in kilometers on course markers
- Training Plans: European training programs often use metric distances
- GPS Watch Settings: Switching between km and miles when traveling
- Pace Comparisons: Comparing your pace to international runners or records
- Treadmill Calibration: Some treadmills only display in kilometers
Tips for Memorizing Key Conversions
- 5K = 3.1 miles: Think "5K starts with 3" (3.1)
- 10K = 6.2 miles: Double 3.1 to get 6.2
- Half Marathon = 13.1 miles: Easy to remember as "13.1"
- Marathon = 26.2 miles: Double 13.1 to get 26.2