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How to figure your heart rate target zone?

How to figure your heart rate target zone: calculation method, required inputs, worked check, limitations and a link to Heart Rate Calculator. Reviewed 24 Se...

How To Figure Your Heart Rate Target Zone?

For “How to figure your heart rate target zone”, the linked Heart Rate Calculator is relevant because See your estimated maximum heart rate and training zones; add resting HR for Karvonen zones.

What this specific question is asking

The result only answers the question if the inputs do. For this calculation that means your age (years) and resting pulse (bpm) — optional, each in the unit and period Heart Rate Calculator assumes. Set that up first; the arithmetic is the easy part.

Use the example (As a worked reference for “How to figure your heart rate target…) as a calibration run: reproduce it first, then change only your age (years). The output should track the change predictably; if it does not, the inputs are on mismatched bases.

Inputs to verify

  • Verify your age (years) before calculation; if this value uses a different unit, period or definition, convert or restate it first.
  • Verify resting pulse (bpm) — optional before calculation; if this value uses a different unit, period or definition, convert or restate it first.

Step-by-step check

  1. Enter your age in years to estimate max HR.
  2. Optionally enter your resting heart rate for personalised zones.
  3. Press Calculate to see your max HR and zones.
  4. Use zones as a guide, not a medical limit.

Worked example and sanity check

As a worked reference for “How to figure your heart rate target zone”, Worked example A simple max-heart-rate estimate is 220 − age. At 30, that's 220 − 30 = 190 bpm , with moderate exercise around 50–70% of it.

Interpreting the result

So what does the number mean? In the worked example the calculation produced 220 − age. A result in that range is plausible for this kind of input; if your result lands far from it, revisit your age (years) first — it is the input most often entered on the wrong basis. Treat the number as a screening estimate for orientation, not a diagnosis or a personalised prescription; individual measurement error and physiology dominate any formula's precision.

Reviewed 25 September 2026

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Use the Heart Rate Calculator

Open Heart Rate Calculator

Authoritative references

Common questions

Which inputs matter most for how to figure your heart rate target zone?

The key inputs are Your age (years), Resting pulse (bpm) — optional. Match their units and periods before using Heart Rate Calculator.

How can I check an answer for how to figure your heart rate target zone?

Reproduce the worked example with its stated inputs first, then change your age (years) by a known amount and confirm the output moves the way the relationship predicts. Only then substitute your own values.

When should I recalculate how to figure your heart rate target zone?

Recalculate whenever any input's basis changes: a new measurement, a revised rate or threshold, a different period convention, or an updated policy figure.