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Triathlon Total Time and Transitions Calculator

Sprint to Ironman finish time estimation.

Estimates triathlon finish time: swim + T1 + bike + T2 + run. Calculates each leg from speed and distance, adds transition times, and projects finishing time in HH:MM:SS.

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

km
min/100m
s
km
km/h
s
km
min/km

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Total = swim_s + T1 + bike_s + T2 + run_s

In depth

Estimates triathlon finish time: swim + T1 + bike + T2 + run. Calculates each leg from speed and distance, adds transition times, and projects finishing time in HH:MM:SS.