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Target Heart Rate (Karvonen formula) Calculator Help

The Karvonen formula is a more personalized method to determine your exercise target heart rate. Enter your age, your resting heart rate, and the your intensity level during exercise and let this calculator help determine the target heart rate (THR) zone that will maximize the effectiveness of your cardio workouts.

Input Fields:

Title A title for these calculator results that will help you identify it if you have printed out several versions of the calculator.
Age Your current age.
Resting Heart Rate Average Your one minute resting heart rate (RHR), averaged over 3 to 5 mornings. Use the 'Resting Heart Rate Average Calculator' to help calculate your average RHR then enter the resulting one minute number here. If that calculator is not available, use your index and middle fingers to find your pulse at the side of your neck or on your wrist before getting out of bed in the morning or after sitting down and relaxing for at least 5 minutes. Count the number of heart beats for 1 full minute. Do this for 3 to 5 mornings or days, calculate the average and enter your result here.
Fitness Goal Choose the fitness goal closest to your actual goal.

Output Fields:

Target Heart Rate (THR) Exercise at an intensity that will keep your heart rate within this range to best meet your fitness goal.
Max Heart Rate (MHR) Based on your age, this is your maximum heart rate. Even during high intensity exercise you should not let your heart rate go above this number.
Beats Per Minute (bpm) The number of heart beats per minute (bpm). If your exercise equipment has a pulse sensor it will be expressed as beats per minute.
Beats in 10 Secs Find your pulse at your neck or wrist. Using a clock or watch with a second hand, count each heart beat for 10 seconds. (This number times 6 will be your heart beats per minute (bpm).)
Exercise Intensity Table Your fitness goal helps determine the intensity of your exercise. In turn, exercise intensity and your age determines your target heart rate range to meet your fitness goal. This table shows the exercise intensity and target heart rate range for each fitness goal.

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All calculators are made available as self-help tools for your independent use with results based on information provided by the user. All examples are hypothetical and are for illustrative purposes only. Calculated results are believed to be accurate but results are not guaranteed. Exercise, Fitness, Health, and Weight Loss calculators are not for providing medical advice and should not be used as a substitute for advice from a medical professional. Users are advised to check with a physician before undertaking any strenuous exercise or diet plan.
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Updated 04 Jul 2007