Heart Rate Zone Calculator
Calculator ToolsTarget heart rate zones for exercise
Embed this tool on your websiteFree
- Choose how tall the frame should be.
- Press Copy code.
- Paste it into your page, blog, WordPress or Notion HTML block.
The tool runs inside your visitor's browser, nothing is uploaded, and a small "Powered by ToolCloak" line stays under it. The second line (script) is optional: it makes the frame fit the tool's height.
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History
All history →Heart Rate Zone Calculator — at a glance
Train at the right intensity by knowing your heart rate zones.
How to use it — step by step
Your age and your resting heart rate (measure it in the morning before getting up).
Enter your values
Fill in the boxes. Sensible example values are already filled in for you.
Calculate Zones
Press the button. The answer is worked out instantly on your device.
Read or copy the result
See the big answer and the extra details, then press Copy to keep them.
Pro tips
Small things that make the result better.
Quick facts
Frequently Asked Questions
Is 220 − age accurate?+
It is a rough rule. Real maximum heart rate varies by ±10 bpm between people.
Is this medical advice?+
No. See a doctor before starting hard exercise if you have any health concerns.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.