Estimate target heart-rate zones.
This calculator uses a simple age-based max heart-rate formula and then maps common training zones from that estimate.
Nutrition & Weight Loss
Target Heart Rate Calculator
Use this target heart rate calculator to estimate training zones from an age-based maximum heart rate formula.
How it works
How to use the target heart rate calculator
Target Heart Rate Calculator is built to help you turn cardio intensity into clearer zones instead of only guessing from effort. It works best for people who want a simple heart-rate starting point for cardio, conditioning, or recovery work. Instead of guessing, you can use the result as a cleaner starting point and then adjust based on what happens in real life over the next few days or weeks.
To use this calculator well, enter age and use the zones as a starting reference during cardio sessions. Once you have the heart-rate zones, compare it to your current routine, training demands, and recovery. The best number on paper is still the number you can follow consistently enough to learn from.
age-based max heart rate formulas are broad estimates and can miss your true max by a meaningful margin. That does not make the tool useless. It just means the output should guide your next decision instead of replacing judgment. Pair the zones with pace, breathing, and perceived effort so you can decide whether a session is really as easy or hard as it should be.
FAQ
Common questions about this calculator.
Use these quick answers as a starting point, then compare the result to your real-world progress.
What does the target heart rate calculator tell me?
It gives you a practical estimate that can help you make a better starting decision. You can use it to reduce guessing, then refine the plan after you track your response over time.
How accurate is the target heart rate calculator?
age-based max heart rate formulas are broad estimates and can miss your true max by a meaningful margin The result is most useful when you treat it as an estimate, track the outcome, and adjust based on real-world feedback.
What should I do after I get my result?
Pair the zones with pace, breathing, and perceived effort so you can decide whether a session is really as easy or hard as it should be. When progress is not matching the estimate, make one small adjustment at a time so you can see what actually changed.
Who is this calculator best for?
This calculator is best for people who want a simple heart-rate starting point for cardio, conditioning, or recovery work. It is written for regular users first, but it can still be useful for athletes who want a simple starting point before getting more detailed.
When should I recalculate?
Recalculate when one of the main inputs changes in a meaningful way, like bodyweight, training volume, pace, calories, or your goal. You can also rerun it when your progress stalls and you want a fresh checkpoint.
These estimates are for educational purposes only and are not medical advice.
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