Cardio Calculators
Heart Rate Zones Calculator
Get five heart-rate zones using either max heart rate or a more personal reserve-based method.
Page structure
Built for a fast answer first, then a calmer second read.
This calculator page is intentionally layered: quick input and output up top, then a deeper pass through formulas, worked examples, FAQs, and related tools.
Result
Training zones
114–133 bpm steady aerobic zone
These zones use percentages of max heart rate.Results explained
- Use real race or field-test data when available.
- Fat-loss training can happen in multiple zones if total work is consistent.
- Perceived exertion is a useful cross-check when heart-rate data looks odd.
Best used for
Clearer context before the number
A strong cardio hub page that naturally connects with running pace and calories burned.
Coverage
Tags and page signals
cardioheart raterunning
Formula & steps
Zone methods
- If max HR is unknown, the calculator uses 220 − age.
- If resting HR is entered, it switches to the Karvonen reserve method.
- Each zone includes a rough training use.
Examples
Quick scenario checks
- Age 30
Zones come from estimated max HR.
- Age 30
- resting HR 56
More personalized zone bands.
FAQ
Questions worth ranking for
Each calculator page keeps its own compact FAQ block to widen long-tail coverage.
Is 220 minus age accurate?
It is rough. Real max HR can vary a lot.
Which zone is best for fat loss?
There is no single magic zone; total work and consistency matter.
Should I trust wrist heart-rate data?
It can be useful, but chest straps are often more stable during hard efforts.