Calculate your race times, paces, and total finish time.
Want to hit your race pace?
Try out Theron for free. Your adaptive plan for triathlon training.
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Swim
Time
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:
Pace—
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Bike
Time
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:
Speed—
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Run
Time
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:
Pace—
Transitions
Total Race Time
Enter distances and times above to see your total race time
How to Use
Enter distance and time for each discipline
Pace is automatically calculated as you type
Use race presets for common triathlon distances
Adjust transition times based on your experience
Pace Formats
Swim: Time per 100m / 100y
Bike: Speed in km/h or mph
Run: Time per km or mile
FAQ
How do I use the triathlon pace calculator?
Enter distance and time for swim, bike, and run. Pace is calculated automatically as you type. Use race presets for Sprint, Olympic, T100, 70.3, or Ironman distances, then adjust T1 and T2 transition times to match your race experience.
What pace formats are used for swim, bike, and run?
Swim pace is shown as time per 100m or 100y. Bike is shown as speed in km/h or mph. Run pace is shown as time per km or mile, depending on whether you select metric or imperial units.
How are transitions included in total race time?
T1 (swim to bike) and T2 (bike to run) are entered in minutes and added to your swim, bike, and run times to produce the total race finish time and the per-leg breakdown.
Can I switch between metric and imperial units?
Yes. Toggle Metric (km) or Imperial (mi). Existing distance values convert automatically, and presets fill the correct units for the selected system.
Updated July 2026
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