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Triathlon time

Combine swim, bike, run and transition estimates into a total triathlon time.

Built and maintained by The NumberPrism Editorial TeamEditorial policy

Your details

Results update as you type. The formula and assumptions are explained below the calculator.

Estimated total time

2:50:00

Swim30:00
Bike1:20:00
Run55:00
Transitions5:00

Estimate only. It assumes even pacing, no drafting and calm conditions; starts, sighting, aid stations and fatigue are not included.

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What does this tool do?

A triathlon finish time is the sum of three discipline times plus two transitions. Entering a sustainable pace for each leg shows where the hours go and how much transitions add.

The Formula

Total = swim distance × pace + bike distance ÷ speed + run distance × pace + transitions

Frequently Asked Questions

What are the standard triathlon distances?

Sprint is 750 m swim, 20 km bike, 5 km run. Olympic is 1.5 km / 40 km / 10 km. A 70.3 is 1.9 km / 90 km / 21.1 km, and an Ironman is 3.8 km / 180 km / 42.2 km.

Are transitions included?

Yes, as a single time you enter. Real T1 and T2 vary with rack position, wetsuit removal and clothing choices, so check them separately for a precise plan.