Heart Rate Zone Calculator

Heart Rate Zone Calculator is useful when you need to calculate your maximum heart rate and the five training zones (warm-up, fat burn, aerobic, anaerobic, max) from your age and resting heart rate. It is meant for quick checks, everyday workflows and practical tasks where a fast browser-based result is enough.

Enter accurate body, time, activity or goal values. The estimate is only as good as the measurements you provide.

Use the fields shown in the tool and keep the input close to the real case you want to solve. If the page includes examples or presets, start with those to understand the expected format.

The tool returns health-related estimates, categories or target ranges based on the inputs shown on the page. In most cases the output updates instantly and can be copied, downloaded or used as a reference for your next step.

Use the result as a practical reference, not as medical advice. Personal health decisions should be checked with a qualified professional.

The tool is designed to run in your browser, so ordinary inputs are processed locally unless a page explicitly states that it needs an online lookup.

Avoid guessing measurements, mixing metric and imperial units, or treating an estimate as a diagnosis.

Heart Rate Zone Calculator is intended for use cases related to "heart rate zone calculator" and nearby needs such as "target heart rate". For best results, follow the labels, examples and options on the page.

It is a planning tool, not a professional advisor. Local rules, personal circumstances and real-world conditions can change the final answer.

Double-check the output before changing health, diet, training or medication decisions.