2:40 Half MarathonPace Chart & Split Guide
Pace chart for a 2:40 half marathon with mile and kilometer splits, plus modelled 5K and 10K race equivalents.
2:40 Half Marathon
Pace/km
7:35
Pace/mi
12:12
Distance
21.1km
Avg Speed
7.9km/h
Kilometer Splits
| KM | Split | Elapsed |
|---|---|---|
| 1 | 7:35 | 7:35 |
| 2 | 7:35 | 15:10 |
| 3 | 7:35 | 22:45 |
| 4 | 7:35 | 30:20 |
| 5 | 7:35 | 37:55 |
| 6 | 7:35 | 45:30 |
| 7 | 7:35 | 53:05 |
| 8 | 7:35 | 1:00:40 |
| 9 | 7:35 | 1:08:15 |
| 10 | 7:35 | 1:15:50 |
| 11 | 7:35 | 1:23:25 |
| 12 | 7:35 | 1:31:00 |
| 13 | 7:35 | 1:38:35 |
| 14 | 7:35 | 1:46:10 |
| 15 | 7:35 | 1:53:45 |
| 16 | 7:35 | 2:01:20 |
| 17 | 7:35 | 2:08:56 |
| 18 | 7:35 | 2:16:31 |
| 19 | 7:35 | 2:24:06 |
| 20 | 7:35 | 2:31:41 |
| 21 | 7:35 | 2:39:16 |
| 21.10Finish | 0:44 | 2:40:00 |
Mile Splits
| Mile | Split | Elapsed |
|---|---|---|
| 1 | 12:12 | 12:12 |
| 2 | 12:12 | 24:25 |
| 3 | 12:12 | 36:37 |
| 4 | 12:12 | 48:49 |
| 5 | 12:12 | 1:01:02 |
| 6 | 12:12 | 1:13:14 |
| 7 | 12:12 | 1:25:26 |
| 8 | 12:12 | 1:37:38 |
| 9 | 12:12 | 1:49:51 |
| 10 | 12:12 | 2:02:03 |
| 11 | 12:12 | 2:14:15 |
| 12 | 12:12 | 2:26:28 |
| 13 | 12:12 | 2:38:40 |
| 13.11Finish | 1:20 | 2:40:00 |
Modelled race equivalents for a 2:40 half marathon
If this result represents current race fitness, the standard Riegel model (k=1.06) estimates the comparison times below. They are model outputs, not guaranteed performances; terrain, conditions, pacing, fueling, and distance-specific preparation still matter.
5K
34:47
10K
1:12:31
Marathon
5:33:35
Did this pace chart help?
Buy me a gel for my next long run! 🏃♂️
Pacing Notes for Your 2:40 Half Marathon
Half Marathon Pace Considerations
- Use the split table to rehearse pacing, then adjust it for course and weather.
- Only use fueling and equipment that you have already tested in training.
- Check effort as well as pace; GPS and terrain can distort individual splits.
- A goal time alone cannot determine safe weekly mileage or workout volume.
Race Execution Prompts
Mindset
Treat the goal as a pacing hypothesis and respond to conditions and effort.
Pacing
Start controlled, monitor average pace over stable segments, and adjust rather than forcing a failing plan.
Frequently Asked Questions
What pace do I need to run a 2:40 half marathon?
The mathematical average is 7:35 per kilometer or 12:12 per mile. Course distance, GPS error, hills, wind, and aid-station time can change the pace you see on race day.
Does a 2:40 goal determine my training plan?
No. Goal time alone cannot determine safe mileage, workout volume, or recovery. Use current training history and recent performance with a qualified coach or an established plan.
Does this page prescribe nutrition or gear?
No. Fuel, hydration, footwear, and equipment are individual decisions that should be tested in training; this page calculates pacing and splits only.
What 5K and 10K times are equivalent to a 2:40 half marathon?
Using the standard Riegel model with k=1.06, the comparison times are 34:47 for 5K and 1:12:31 for 10K. These are modelled scenarios, not guarantees of race performance.
Support Free Tools for Athletes
These calculators are free and ad-supported. If they've helped your training, consider fueling my next long run with a small contribution!