Triathlon Time Calculator

Add up a triathlon finish time from swim, bike and run legs plus both transitions, with per-leg paces for Sprint, Olympic, 70.3 and Ironman distances.

100% FreeNo sign-upPrivate — runs in your browser
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Result

Total finish time
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Swim pace
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Bike speed / run pace
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How to use this tool

1
Choose the race distance (Sprint

Choose the race distance (Sprint, Olympic, 70.3 or Ironman).

2
Enter your swim

Enter your swim, bike and run times in minutes, decimals for seconds.

3
Enter both transition times in

Enter both transition times in minutes.

4
Read the total finish time

Read the total finish time and each leg’s pace or speed.

Formula & worked example

Finish time = swim + bike + run + T1 + T2. Swim pace per 100 m = swim minutes / (swim distance in km x 10). Bike speed = bike distance / bike hours. Run pace = run minutes / run distance in km.

Olympic distance: swim 30 + bike 75 + run 50 + transitions 2 + 2 = 159 minutes, a 2:39:00 finish.

Limitations — read this before you rely on it

Paces assume the standard distances shown; actual courses vary slightly. Open-water swimming, hills, wind and drafting rules all move real times away from pool and turbo benchmarks. This tool is for education only and is not medical advice. Talk to a clinician about any result that worries you, and never change treatment because of a calculator result.

Frequently asked questions

Sprint: 750 m swim, 20 km bike, 5 km run. Olympic: 1.5 km, 40 km, 10 km. 70.3: 1.9 km, 90 km, 21.1 km. Ironman: 3.8 km, 180 km, 42.2 km.

Use decimals: 30 minutes 30 seconds is 30.5. The total is shown as hours:minutes:seconds.

T1 (swim-to-bike) and T2 (bike-to-run) are part of the official time, and sloppy transitions can cost minutes, especially in sprint races.

Swim pace is universally quoted per 100 m (or per 100 yards), while run pace is per kilometre, so each leg uses its own convention.

Yes: subtract your transitions and your strongest legs from the target, and the remainder is what the remaining leg must be. Work through it leg by leg.