Running pace tools
Marathon Pace Calculator
Plan a full marathon by setting your goal pace or choosing a target finish time. The calculator estimates your finish time, equivalent race results, and useful workout split ranges.
Use the quick finish presets to compare common marathon goals from 2:30 to 5:00.
Check the nearby pace chart to understand how the same fitness maps to half marathon, 10K, and 5K targets.
Switch between kilometers and miles before sharing a race plan with a coach or training partner.
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 Full Marathon in the race selector.
- 2. Pick a common finish-time preset or move the pace slider to your goal pace.
- 3. Review the finish time, equivalent race predictions, and workout split ranges.
Common marathon goal paces
| Goal | Pace | Use case |
|---|---|---|
| Sub-3:00 marathon | 4:16/km or 6:52/mi | Often used as a competitive Boston-style target. |
| Sub-3:30 marathon | 4:59/km or 8:00/mi | A common goal for experienced recreational runners. |
| Sub-4:00 marathon | 5:41/km or 9:09/mi | One of the most searched marathon pace targets. |
| Sub-4:30 marathon | 6:24/km or 10:18/mi | Useful for steady long-run pacing plans. |
Frequently asked questions
What pace do I need for a 4 hour marathon?
A 4 hour marathon requires about 5:41 per kilometer or 9:09 per mile, before adding any buffer for turns, aid stations, or GPS drift.
Should I pace a marathon by kilometer or mile?
Use the unit shown on your race course and watch. Kilometer pacing gives finer feedback, while mile pacing is common in U.S. races.
How much pace buffer should I add for marathon day?
Many runners plan a small buffer of a few seconds per kilometer or mile, especially if the course is crowded, hilly, or warm.