Triathlon Time Calculator
Total race time from swim, bike, run and transitions.
Reviewed by James Whitfield · How we check our maths
Your values
ⓘ Live results
Results
- Predicted finish time
- 2h 50m
- Swim split
- 0h 32m
- Bike split
- 1h 20m
- Run split
- 0h 52m
Working
- 131.5 + 80 + 52 + 6 = 169.5 min
Quick answer
Total triathlon time is the sum of all three legs plus both transitions, which often cost several minutes.
The formula
total = swim + T1 + bike + T2 + run
Worked example
Worked example
Using the values the calculator loads with.
Inputs
- Swim distance1.5 km
- Swim pace2.1 min/100m
- Bike distance40 km
- Bike speed30 km/h
- Run distance10 km
- Run pace5.2 min/km
- Total transitions6 min
Result
- Predicted finish time2h 50m
- Swim split0h 32m
- Bike split1h 20m
- Run split0h 52m
How to use the Triathlon Time Calculator
- 1Enter each leg distance for your race — sprint, Olympic, half or full.
- 2Use realistic training paces, not personal bests.
- 3Budget 2-4 minutes per transition unless you have practised them.
Frequently asked questions
Why does the bike dominate?
It is the longest leg by time in almost every format, so bike speed moves your finish time most.
Should I run at open-pace?
No. Off-the-bike run pace is typically 15-30 seconds per km slower.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error