Pace to Finish Time Calculator
Calculate your predicted finish time for any running distance. Enter your pace per km or mile to see estimates for 5K, 10K, half marathon and marathon.
Minutes
Seconds
Unit
Pace per km
5:30
Finish Times
5K
5.00 km
27:30
10K
10.00 km
55:00
Half Marathon
21.10 km
1:56:02
Marathon
42.20 km
3:52:04
Custom Distance
Note: These are estimates based on maintaining a constant pace. Actual race times will vary based on terrain, weather, and fitness on race day.
Predicting Race Finish Times from Pace
Multiply pace per mile (or km) by total distance. So 10-minute miles × 26.2 miles = 262 minutes = 4 hours 22 minutes for a marathon. Pace is most useful for predicting longer race times from training runs - if you're hitting 8:00 miles in 10K training, your half marathon is roughly 1:45 (8:00 × 13.1 = 105 minutes).
Race-day pace differs from training pace. Most runners aim for 'race pace' which is 5-15% faster than 'training pace' but slower than '5K race pace' due to endurance fatigue. Marathon pace is typically 30-60 seconds/mile slower than 10K race pace. Use a pace calculator to set realistic targets across distances.
Pace to Finish Time Reference
| Pace per mile | 5K | 10K | Half mar. | Marathon |
|---|---|---|---|---|
| 6:00 | 18:38 | 37:17 | 1:18:38 | 2:37:17 |
| 7:00 | 21:45 | 43:30 | 1:31:45 | 3:03:30 |
| 8:00 | 24:51 | 49:43 | 1:44:51 | 3:29:43 |
| 9:00 | 27:58 | 55:56 | 1:57:58 | 3:55:56 |
| 10:00 | 31:04 | 1:02:08 | 2:11:04 | 4:22:08 |
| 11:00 | 34:11 | 1:08:21 | 2:24:11 | 4:48:21 |
| 12:00 | 37:17 | 1:14:34 | 2:37:17 | 5:14:34 |
Frequently Asked Questions
How accurate is pace-to-finish prediction?
Within 5-10% for most runners. Real race times depend on endurance, hills, weather, hydration, and pacing strategy. Training pace at fast distances usually predicts faster times than slower ones - 5K pace under-predicts marathon time.
What's a typical recreational marathon pace?
Most recreational marathoners finish around 4:00-5:00 (9:00-11:30/mile pace). Elite runners: under 2:30 (5:30-5:45/mile). World record (Eliud Kipchoge, 2:01:09): 4:36/mile pace. Most first-time marathoners aim for 4:30-5:30 finish (10:00-12:30/mile).
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