How to Calculate heart-rate zones
Step-by-step guide to calculate heart-rate zones with Toolenza's free heart rate zones tool. Works in your browser — no upload, no account required.
The fastest way to calculate heart-rate zones is with a browser-based calculator tool that runs locally, keeps your data on your device, and skips the wait, watermarks and account walls that make bigger platforms slow. This guide walks through the four steps: open the tool, bring in your age and resting heart rate, configure the run, and download your five training zones in BPM.
Compute your 5 training zones
Step-by-step
-
1Open Toolenza Heart Rate Zones
Head to the Heart Rate Zones tool on Toolenza — it loads in-browser with no sign-up.
-
2Bring in Your age and resting heart rate
Drop, paste or type your age and resting heart rate into the tool. Everything stays on your device.
-
3Type your age and resting HR
The tool previews the result as you tweak so you can iterate before exporting.
-
4Download your five training zones in BPM
Click Download (or Copy) to save your five training zones in BPM. Files are generated on your device — nothing is uploaded.