Complete Guide: Pace Calculator for Half Marathon
Calculate your half marathon pace and plan your race strategy. The perfect distance to push hard and still recover.
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Expert Tips for Half Marathon
- ✓Half marathon is short enough to push, long enough to require pacing
- ✓First 5K should feel comfortable - don't go out too fast
- ✓Ideal effort: 85-90% of max heart rate
- ✓Nutrition is optional for most - water at aid stations is usually sufficient
- ✓Use 10K time x 2.2 or 5K time x 4.6 to predict half marathon
- ✓Aim for even splits - back half slightly faster is ideal
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Frequently Asked Questions
How do I pace a half marathon?
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Start at goal pace or slightly slower. Hold steady through middle miles. If you feel good at mile 10, push the last 5K. Even effort throughout is the goal.
Do I need to fuel during a half marathon?
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For most runners finishing under 2 hours: optional. Water is sufficient. Over 2 hours: consider gels at miles 5 and 9. Some runners do better with calories regardless of time.
What's a good half marathon time?
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Sub-1:30 is competitive male, sub-1:45 competitive female. Average recreational: 2:00-2:30. First goal for many is breaking 2 hours.
How do I predict half marathon time?
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10K time x 2.2 or 5K time x 4.6. Example: 50-minute 10K = ~1:50 half marathon. Add time for first half attempt due to inexperience.
Half marathon vs marathon training?
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Half requires less overall volume but similar speed work. Long runs of 10-13 miles sufficient. Can race half marathons more frequently with faster recovery.
Looking for the standard pace calculator?
Go to Main Pace Calculator