Target heart rate calculators are tools that are used to determine heart rate ranges for physical exercise, according to Active.com. By accounting for age and exertion level, these calculators give users a good idea of how hard they should be pushing themselves while exercising.
The average resting heart rate for individuals over the age of 10 is 60 to 100 beats per minute, according to the American Heart Association. In contrast, the average resting heart rate of a trained athlete is 40 to 60 beats per minute. Exercise and cardiovascular training help individuals regulate their heart rate and improve their overall health.