Triathlon Heart Rate Training Zones Calculator
This calculator determines heart rate training zones for swimming, cycling, and running based on your maximum heart rate and resting heart rate. These zones help optimize your training intensity for different triathlon disciplines.
Triathlon Heart Rate Training Zones Calculator gives you a faster way to work through practical calculation scenarios without rebuilding the same calculation from scratch every time. Start with Maximum Heart Rate (bpm) and Resting Heart Rate (bpm) and use the live outputs to estimate Zone 5: VO2 Max, Zone 4: Threshold, and Zone 3: Tempo in one pass. This page is built to help you compare scenarios quickly, validate rough assumptions, and move into a related calculator when you need a second angle on the same problem.
Use The Calculator In A Few Steps
Work through the inputs deliberately, then compare outputs instead of relying on a single scenario.
Scenario Checks
Use these examples to verify the behavior of the calculator before you run your own values.
What Users Usually Need Next
Keep the calculator open while you skim these answers so you can test the scenario that matters.
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