Ironman Calculator
Plan your full distance Ironman with pacing, nutrition, and cutoff calculations
Race Inputs
Ironman Distances
Swim: 3.86 km
Bike: 180.25 km
Run: 42.2 km
Estimated Finish
14:24:50
Leg Times
Swim (3.86 km)1:17:12
Bike (180.25 km)8:45:26
Run (42.2 km)4:13:12
Cutoff Status
Swim Cutoff(2:20:00)
PASSBike Cutoff(10:30:00)
PASSFinish Cutoff(17:00:00)
PASSNutrition Plan
5178
Total Calories
60g
Carbs/Hour
10L
Total Fluid
6489mg
Sodium
Bike Power
Intensity Factor0.72
Estimated TSS454
Target NP (72% FTP)180w
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.