Running pace tools
Half Marathon Pace Calculator
Use this half marathon pace calculator to turn a 13.1-mile finish goal into pace, equivalent race predictions, and practical training split targets.
Pick a finish preset to compare common half marathon targets from 1:15 to 2:30.
Review the equivalent full marathon and 10K times before choosing an aggressive race pace.
Use the workout split ranges as a quick reference for threshold and interval sessions.
Calculator ready for this goal
Open this page with JavaScript enabled to use the interactive pace calculator with the right race distance or treadmill mode selected.
How to use this calculator
- 1. Choose Half Marathon in the race selector.
- 2. Select a finish-time preset or adjust pace until the target time matches your goal.
- 3. Use 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.