Triathlon
Race planning, split strategy, and multisport decision support.
Use triathlon calculators when you need better race-day decisions, not just more numbers.
Race Time Calculator
Plan swim, bike, run, and transition splits with research-informed defaults and clearly labeled race-day estimates for fatigue and fueling.
Map realistic race-day splits for sprint through long-course triathlon with explicit assumptions around swim conditions, bike execution, and run durability.
Results: Projected finish time • Scenario comparison • Split breakdown • Assumption review • Printable race plan
Pace Converter
Convert between pace, speed, and time across swimming, cycling, and running with instant format switching, race projections, and triathlon context.
Use one tool to translate pace into every format you need — per 100m, min/km, min/mile, km/h, mph — across all three triathlon disciplines.
Results: Pace in all formats • Speed in all formats • Swim split table • Run race projections • Triathlon context
VO2max Calculator
Estimate VO2max across swim, bike, and run field tests, compare the outputs in one place, and keep the confidence level of each method visible.
Cross-sport VO2max estimates can be useful as context, but running remains the strongest field-test input while swim and bike stay better treated as supporting proxies.
Results: Estimated VO2max • Fitness rating • Training zones • Cross-sport comparison
Nutrition Calculator
Estimate your race-day carbs, fluid, and sodium needs for Sprint, Olympic, 70.3, and IRONMAN triathlon. Includes segment breakdowns, product planning, and fueling timeline.
Plan your race-day nutrition with carb, fluid, and sodium targets based on race duration, conditions, gut tolerance, and experience level.
Results: Carbs/hr, fluid/hr, sodium/hr • Segment breakdown (swim, bike, run) • Product plan (gels, bottles) • Fueling timeline • Risk warnings