Triathlon Pace Calculator
Estimate your total triathlon finish time from swim pace, bike speed, and run pace. Supports Sprint, Olympic, Half Ironman (70.3), and Full Ironman distances. Supports metric and imperial units.
Triathlon Finish Time Estimator
Swim + Bike + Run + Transitions
Transition times (T1: swim-to-bike, T2: bike-to-run) significantly affect total finish time for Sprint and Olympic distances. Include realistic estimates — beginner T1 averages 3–5 min, elite <1 min. Open water swim pace is typically 5–10% slower than your pool pace due to sighting, drafting, and current.
Triathlon Distances & Average Finish Times
| Distance | Swim | Bike | Run | Avg Finish |
|---|---|---|---|---|
| Sprint | 750m / 0.47mi | 20km / 12.4mi | 5km / 3.1mi | 1h10–2h |
| Olympic | 1.5km / 0.93mi | 40km / 24.8mi | 10km / 6.2mi | 2h–3h |
| Half 70.3 | 1.9km / 1.2mi | 90km / 56mi | 21.1km / 13.1mi | 4h30–6h30 |
| Ironman 140.6 | 3.8km / 2.4mi | 180km / 112mi | 42.2km / 26.2mi | 9h–17h |
Triathlon Pacing Strategy
Pacing a triathlon requires managing three different physiological systems across sequential disciplines. The most common mistake is over-biking — pushing too hard on the bike so that running performance collapses. Research on Ironman pacing shows that athletes who run within 3% of their predicted run time (based on standalone half-marathon pace) typically bike at 70–75% of FTP. For Olympic distance, the bike should be at ~80–85% FTP. The swim is often paced too aggressively by beginners — a calm, efficient swim saves energy for the bike and run. Aim for a swim RPE of 6–7/10, not 9/10.