OhMyCalc

Target Heart Rate Calculator

Calculate your target heart rate zones using the Karvonen method. Find fat burn, cardio, and max zones.

How to Use the Target Heart Rate Calculator

  1. Enter your age in years.
  2. Enter your resting heart rate in beats per minute.
  3. Click Calculate to see your maximum heart rate and five training zones.
  4. Use the fat-burn, cardio, aerobic, anaerobic, and max zones to guide your workouts.

Quick Reference

FromTo
Height (adult M)170–180 cm
Height (adult F)160–170 cm
Weight (adult M)65–85 kg
Weight (adult F)55–70 kg
Resting heart rate60–100 bpm
Normal BP120/80 mmHg

Use Cases

Formula

Max HR = 220 − age. Karvonen: target = ((maxHR − resting) × intensity) + resting.

Frequently Asked Questions

How to use?
Enter your age and resting heart rate, then click Calculate to see your target heart rate zones.
Calculation accuracy?
Calculations are performed with high precision.
Is it free?
Yes, all calculators are completely free.