Max Heart Rate Calculator

This calculator works out your estimated maximum heart rate (MHR), the fastest your heart can safely beat during exercise, based on your age. Maximum heart rate matters because it is the reference point used to set safe, effective training zones for cardio, endurance and interval work; your heart's peak capacity gradually declines as you get older, so knowing your current MHR helps you train hard without overexerting yourself. Enter your age in years in the field provided and press Update, and the calculator instantly returns two figures in beats per minute: one using the male formula (202 minus 0.55 times your age) and one using the female formula (206 minus 0.88 times your age), shown side by side so you can read off whichever applies to you. Both formulas come from published exercise-science research and are more tailored than the old "220 minus age" rule of thumb, though everyone's true ceiling still varies with fitness, genetics and health. Once you have your MHR, take it straight to the Target Heart Rate Zone Calculator to work out your aerobic, anaerobic and peak training ranges as a percentage of that number. These figures are indicative estimates for general fitness planning rather than a medical assessment, so if you have any heart condition, chest pain or other cardiac concerns, check with your doctor before attempting high-intensity training.

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