How to Use Our Half Marathon Pace Calculator
Our half marathon pace calculator is specifically designed for the 21.1K distance, providing accurate pace calculations, detailed split times, and comprehensive training zones for half marathon preparation.
Half Marathon Pacing Strategy
Successful half marathon pacing requires strategic planning. Our 21.1K pace calculator helps you:
- Calculate your target half marathon pace based on goal time
- Generate 5K split times for race day execution
- Determine training paces for different workout types
- Plan even pacing or negative split strategies
Half Marathon Training Paces
Different training runs require specific paces for optimal half marathon preparation:
- Easy Runs: 60-90 seconds slower than half marathon pace
- Long Runs: 30-45 seconds slower than half marathon pace
- Tempo Runs: 10-20 seconds faster than half marathon pace
- Half Marathon Pace Runs: Exact target race pace
- Interval Training: 15-30 seconds faster than half marathon pace
Race Day Execution
Use our half marathon split times to execute your race strategy:
- Start conservatively in the first 5K
- Settle into target pace by 8K
- Maintain steady effort through 15K
- Push slightly in the final 5K if feeling strong
Common Half Marathon Pace Targets
Popular half marathon time goals and their required paces:
- Sub-1:30 Half Marathon: 4:15/km (6:51/mile)
- Sub-1:45 Half Marathon: 4:58/km (8:00/mile)
- Sub-2:00 Half Marathon: 5:41/km (9:09/mile)
- Sub-2:15 Half Marathon: 6:23/km (10:17/mile)
- Sub-2:30 Half Marathon: 7:06/km (11:26/mile)
Half Marathon vs Other Distances
The half marathon requires different pacing than other distances:
- Half marathon pace is typically 10-15 seconds per km slower than 10K pace
- More emphasis on aerobic endurance vs pure speed
- Requires sustained effort over longer distance
- Good stepping stone to marathon training