Delibra Tools

Max HR Calculator

Estimate maximum heart rate and training zones from your age using common published formulas. Quick reference for cardio planning on your device.

What you get

  • Fox, Tanaka, Gellish, and NES formulas with clear zone breakdowns
  • Age-based Max HR estimate with training zone percentages
  • Save calculation history locally for later review
  • Share results as text or image when you want

For general fitness reference only, not medical advice or a substitute for professional assessment.