Share Sign in

Heart Rate Zone Calculator Pro

Optimize Fat Burn & Endurance with Karvonen HR Zones

Web AppHealth FitnessProductivity Launched Sep 6, 2026
Visit website View on Product Hunt 1

About Heart Rate Zone Calculator Pro

Stop guessing your workout effort! Most fitness apps hide precise training metrics behind paywalls or sell user data. Heart Rate Zone Calculator Pro is a 100% free, privacy-first web utility built using the Karvonen Formula. Calculate your exact target zones for Fat Loss, Aerobic Endurance, and Peak Performance in seconds—directly inside your browser with zero data tracking. Features: ⚡ Instant Karvonen HR Reserve Math 🔒 100% Client-Side Privacy 📱 Fast & Mobile Responsive

Screenshots

Maker

Listed from Product Hunt. Claude Updates summarizes public launches and links back to the source.

Related apps

App 910

BeforeSunset

Catch beautiful sights, finish your work before sunset

Web App Launched Nov 2 producthunt.com
Batuhan Ulaşan 0 0
App 796

June 3.0

A new way to do product analytics for B2B SaaS companies

Web App Launched Mar 1 producthunt.com
Daniel Beere 0 0
App 755

Cycle 2.0

Manage product feedback from Slack, weirdly fast

Web App Launched Jul 11 producthunt.com
Carine Letellier 0 0