Target Heart Rate
Find your optimal training zones using the Karvonen formula.
Your Details
💡 Measure Resting HR
Measure first thing in the morning before getting out of bed. Count beats for 60 seconds.
Key Numbers

Coursera Holi Offer
Build your AI fluency and get more done, faster. Get the AI skills employers are looking for and create 20+ solutions you can use at work, right away.
— bpm
220 - 30 years = bpm
Training Zones (Karvonen)
Zone Visualization
Karvonen vs Standard
The Karvonen formula is more personalized as it accounts for your resting heart rate, giving more accurate zones.
Karvonen Formula
The Karvonen method uses your heart rate reserve (HRR) to calculate more accurate training zones. HRR is the difference between your max HR and resting HR.
"A lower resting HR indicates better cardiovascular fitness and gives you a larger training range."
The Formulas
Max HR = 220 − Age
HRR = Max HR − Resting HR
Target HR = (HRR × Intensity%) + Resting HR
SponsoredAbout the Heart Rate Calculator
This heart rate calculator estimates health and fitness metrics from your personal inputs. Calculate target heart rate zones for optimal training.
Use for personal wellness tracking and education. Consult a healthcare provider for medical advice.
Adjust the inputs above to model your specific scenario with the Heart Rate Calculator.
Explore More
Related Calculators
One Rep Max Calculator
Estimate your 1RM using multiple proven formulas.
Pace Calculator
Calculate running pace and race time predictions.
Age Calculator
Calculate precise age and days until next birthday.
Anniversary Forecaster
Find out when your 1,000th or 10,000th day together will be.
BAC Calculator
Calculate blood alcohol content based on drinks and body weight.
BMI Calculator
Calculate your Body Mass Index and check weight status.