Half Marathon Pace Calculator
Turn a 13.1-mile finish goal into pace, race-day splits, a printable pace band, equivalent race predictions, and practical training split targets.
Roll a digit ↕︎
- Pace
- 5:41 /km
- Status
- Right on 2:00 pace
Flick the tape · pull your finger down for fine control
Your pace band
Clock time at every marker. Print it, cut it, tape it to your wrist.
The same pace from start to finish.
- Half marathon2:00:00
- 5K28:26
- 10K56:53
- 15K1:25:19
- 20K1:53:45
- Finish2:00:00
If you can run 2:00:00
Equivalent race times from the Riegel formula. Longer-race predictions assume your endurance training matches.
Workout paces
Interval targets based on your equivalent 5K effort.
Every finish time on one page:Half marathon pace chart
| Rep | Target |
|---|---|
| Mile | 8:19–8:36 |
| 1000m | 4:57–5:13 |
| 800m | 3:53–4:05 |
| 400m | 1:50–1:56 |
| 200m | 0:48–0:53 |
- 1Use the goal buttons to compare common half marathon targets from 1:15 to 2:30.
- 2Review the equivalent full marathon and 10K times before choosing an aggressive race pace.
- 3Use the workout paces as a quick reference for threshold and interval sessions.
How to use this calculator
- 1Choose Half marathon in the race distance selector.
- 2Tap a goal, flick the slide-rule tape, or type an exact finish time on the bib.
- 3Use the equivalent race times to sanity-check whether the goal fits your current fitness.
Common half marathon goal paces
| Goal | Pace | Use case |
|---|---|---|
| Sub-1:20 half marathon | 3:48/km or 6:06/mi | A strong competitive club-runner target. |
| Sub-1:30 half marathon | 4:16/km or 6:52/mi | A common benchmark for advanced recreational runners. |
| Sub-1:45 half marathon | 4:59/km or 8:00/mi | Often aligns with controlled tempo effort for marathon training. |
| Sub-2:00 half marathon | 5:41/km or 9:09/mi | One of the most common half marathon goals. |
Frequently asked questions
What pace is needed for a 2 hour half marathon?
A 2 hour half marathon requires about 5:41 per kilometer or 9:09 per mile.
Can I use a half marathon result to estimate marathon pace?
Yes. The calculator uses race-equivalent estimates, but marathon pace also depends on long-run durability, fueling, and course conditions.
Is half marathon pace close to threshold pace?
For many trained runners, half marathon pace is near threshold effort, but newer runners may need a more conservative effort.