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Target Heart Rate Calculator by Online Tool Base

Cardio Zones. The Target Heart Rate Calculator at Online Tool Base defines training zones (Fat Burn, Cardio, Peak) based on your age.

Training Smart

onlinetoolbase.online optimizes workouts:

  • Max HR: Estimated as 220 minus age.
  • Zones: 50-85% of max for safety and efficiency.

How to Use

  1. Enter Age.
  2. View Zones.

Train effectively with the Heart Rate Calculator from Online Tool Base.