Running Pace Chart: Finish Times for 5K, 10K, Half Marathon, and Marathon
October 21, 2026
Runners think in pace (minutes per mile or kilometer), while treadmills show speed (miles or kilometers per hour). Converting between them is straightforward but fiddly. Speed in mph = 60 ÷ pace in minutes per mile. An 8:00 mile pace is 60 ÷ 8 = 7.5 mph, which is 12.07 km/h or 4:58 per kilometer. At that pace you finish a 5K in 24:51, a 10K in 49:43, a half marathon in 1:44:53, and a marathon in 3:29:45.
The chart below gives conversions and finish times for a range of paces, so you can pick a target and see the full picture.
Skip the math and get your answer instantly:
Open the Speed Calculator →The Chart
Finish times assume you hold an even pace for the entire distance, which most runners cannot do in a marathon without fading, so use the chart for planning and for splits.
| Pace (min/mile) | Pace (min/km) | mph | km/h | 5K | 10K | Half | Marathon |
|---|---|---|---|---|---|---|---|
| 6:00 | 3:44 | 10.0 | 16.1 | 18:38 | 37:17 | 1:18:39 | 2:37:19 |
| 7:00 | 4:21 | 8.6 | 13.8 | 21:45 | 43:30 | 1:31:46 | 3:03:32 |
| 8:00 | 4:58 | 7.5 | 12.1 | 24:51 | 49:43 | 1:44:53 | 3:29:45 |
| 9:00 | 5:36 | 6.7 | 10.7 | 27:58 | 55:55 | 1:57:59 | 3:55:58 |
| 10:00 | 6:13 | 6.0 | 9.7 | 31:04 | 1:02:08 | 2:11:06 | 4:22:11 |
| 12:00 | 7:27 | 5.0 | 8.0 | 37:17 | 1:14:34 | 2:37:19 | 5:14:38 |
The Formulas
Minutes per kilometer = minutes per mile ÷ 1.609344. Speed in km/h = 60 ÷ minutes per km. Finish time = pace × distance. The distances are 5K = 3.107 miles, 10K = 6.214 miles, half marathon = 13.109 miles (21.0975 km), and marathon = 26.219 miles (42.195 km).
Treadmill conversions: 6.0 mph is a 10:00 pace, 7.0 mph is 8:34, 8.0 mph is 7:30, and 10.0 mph is 6:00. To convert a pace with seconds, convert to decimal minutes first: 8:30 is 8.5 minutes, so the speed is 60 ÷ 8.5 = 7.06 mph.
Planning a Race
Pick a goal time and divide by the distance to get the target pace. A 4:00:00 marathon needs 240 ÷ 26.219 = 9.15 minutes per mile, or 9:09. Build in a small buffer for the early miles and use negative splits if you can: run the second half slightly faster than the first. Many runners start 10 to 20 seconds per mile too fast and pay later.
For half marathons, a pace-based prediction from a recent 10K typically adds 5% to 7% per mile; for the full marathon, 10% to 15%. Race prediction formulas, such as Riegel's, are based on the idea that time scales with distance to the power of about 1.06.
Using Pace in Training
Different workouts use different paces: easy runs are conversational and often 1 to 2 minutes per mile slower than 10K pace, tempo runs are at about half marathon to 10K effort, and intervals are faster than 5K pace. Heart rate, perceived effort, and terrain all influence the pace you can sustain; hills and heat slow you down. Use the pace chart as a guide, not as a rule for every run.
Common Mistakes
Treating 8:30 as 8.30 minutes, forgetting that kilometer pace is faster in numbers than mile pace, comparing treadmill and outdoor pace without accounting for incline, and ignoring GPS error. Check your watch's distance against a measured course, since a short or long course changes the finish time.
Frequently Asked Questions
How do I convert min/mile to mph?
Divide 60 by the pace in minutes per mile. An 8:00 pace is 60/8 = 7.5 mph.
What is an 8:00 mile pace per kilometer?
About 4:58 per kilometer.
What pace do I need for a sub-4-hour marathon?
About 9:09 per mile, or 5:41 per kilometer.
How accurate are race predictions?
They are reasonable when your recent race was a similar distance and you train for the target distance, but unreliable otherwise.
What treadmill speed is a 10-minute mile?
6.0 mph.