Heart-rate zone calculator
Not medical advice: this tool is only a general estimate. It does not diagnose, treat, or replace professional medical advice. Inputs stay in your browser.
Search and use guide
Heart-rate zone calculator
Estimate training zones from age or known max heart rate. privacy-first-browser-tooling
Who it helps
- Estimate training zones from age or known max heart rate.
- Maximum heart rate can be estimated as 220 minus age. Zones can use max-HR percentages or the Karvonen method with resting heart rate.
- age 40 with resting HR 60 using Karvonen gives Zone 2 around 132-144 bpm.
What you can enter
- age 40 with resting HR 60 using Karvonen gives Zone 2 around 132-144 bpm.
- Maximum heart rate can be estimated as 220 minus age. Zones can use max-HR percentages or the Karvonen method with resti
How to read results
Maximum heart rate can be estimated as 220 minus age. Zones can use max-HR percentages or the Karvonen method with resting heart rate. privacy-first-browser-tooling
Data and privacy
GoGo Tools records analytics by tool slug only and does not include your input values. privacy-safe-analytics-only
Feedback
How can we improve this tool?
Send a suggestion or bug report for this tool.
FAQ
Is this medical advice?
No. This is a general estimate and does not replace a doctor, dietitian, or qualified clinician.
Is data uploaded?
No. Inputs stay in your browser; analytics records only the tool slug.
Can this diagnose a condition?
No. For symptoms, pregnancy, chronic conditions, or emergencies, consult a qualified professional.
Can I use it globally?
Yes as a general estimate; interpret results with local units, context, and professional advice.