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Target Heart Rate Calculator

Health
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Calculates the target heart rate range for exercise, based on the Karvonen formula. This range helps you optimize your workout for cardiovascular benefits.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Age, Resting Heart Rate, and Intensity in the units shown.

Step 2

Read Maximum Heart Rate (MHR), Heart Rate Reserve (HRR), and Target Heart Rate in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Young Adult (25 years)

Age: 25 years; Resting Heart Rate: 65 bpm; Intensity: 75 %

Maximum Heart Rate (MHR): 195 bpm; Heart Rate Reserve (HRR): 130 bpm; Target Heart Rate: 163 bpm

Middle-Aged (45 years)

Age: 45 years; Resting Heart Rate: 72 bpm; Intensity: 65 %

Maximum Heart Rate (MHR): 175 bpm; Heart Rate Reserve (HRR): 103 bpm; Target Heart Rate: 139 bpm

Senior (65 years)

Age: 65 years; Resting Heart Rate: 75 bpm; Intensity: 55 %

Maximum Heart Rate (MHR): 155 bpm; Heart Rate Reserve (HRR): 80 bpm; Target Heart Rate: 119 bpm

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Important

Use the result as an estimate and confirm any medical decisions with a qualified professional.