PDF editing, image processing, developer utilities, and financial calculators — all processed in your browser. Your files never leave your device.
🔒 Files processed in your browser✦ No sign-up required⚡ Works offline after first load✓ Open in any browser
🔍
🏥
Precisd Health
12 tools · by Precisd
🏥
Precisd · Sector
HEALTH
12 tools available
Launch giveaway
$500 prize
Limited time
Social steps + rules in the full entry panel.
💡
Request a tool
Feedback or looking for a new tool? Request a new Health tool. Let us know what you are looking for or share any feedback, and get a chance to win $100 — always open for feedback. Submit now to enter for $100.
❤️ Heart Rate Zones
All 5 training zones with activity guidance
How this tool works
What it does: All 5 training zones with activity guidance
How to use it
Read the short description under the title, complete the fields it lists, then use the main button on the page.
Inputs
Each field label explains what to enter; samples may be filled in so you can see an example—click a field to replace them.
Outputs
The tool shows where to read the answer (numbers, text, download link, or preview).
What you get
You get a single-purpose outcome (a number, a string, a file, or a checklist) without installing software.
⚠️ This tool is for informational purposes only and does not constitute medical advice. Consult a registered healthcare professional in your country.
Estimated max HR: 187 bpm · Method: Karvonen (HR reserve)
Zone 1
124–136 bpm
Warm-up, recovery walk, mobility work
Zone 2
136–149 bpm
Easy cardio, base endurance, long steady sessions
Zone 3
149–162 bpm
Tempo runs, moderate cycling, sustained effort
Zone 4
162–174 bpm
Threshold intervals, hard repeats
Zone 5
174–187 bpm
Sprints, VO2 max intervals, very short efforts
Advertisement
Responsive / in-feed slot
Placeholder below the privacy line (~320px). Swap for AdSense fluid or multiplex — not shown in the sidebar rail.