Ironman Triathlon Calculator
Ironman Triathlon Pace Calculator
Ironman is the ultimate test in age-group triathlon. 3.8km in the water, 180km on the bike, then a full marathon — and the race is defined almost entirely by how well you pace yourself across all three.
Use Goal time to enter a target finish and see the exact paces you need per discipline. Switch to Build from splits to enter your known times or paces per leg — type either field and the other updates automatically, with your total race time calculated live.
Enter a time or a pace for each leg — the other field updates automatically. Totals calculate live.
| Leg | Pace | Time |
|---|
Know your targets. Now build the training behind them.
Ironman preparation is a 20–30 week process that needs careful periodisation, race-specific brick sessions and a clear understanding of your sustainable race intensities. Our coaches have guided athletes to Kona qualifications and first-time finishes alike.
Talk to a coachNo obligation — just a conversation about where you are and where you want to get to.
Split distributions based on typical age-group Ironman performances.