Heart Rate Calculator could calculate the maximum heart rate and target heart rate base on your gender and age with several scientific calculation methods.

Wiki：

Resting Heart Rate (HR_rest)

The resting heart rate (HR_rest) is defined as the heart rate when a person is awake, in a neutrally temperate environment, and has not been subject to any recent exertion or stimulation, such as stress or surprise. The available evidence indicates that the normal range for resting heart rate is 50–90 beats per minute. This resting heart rate is often correlated with mortality. For example, all-cause mortality is increased by 1.22 (hazard ratio) when heart rate exceeds 90 beats per minute. The normal resting heart rate is based on the at-rest firing rate of the heart's sinoatrial node, where the faster pacemaker cells driving the self-generated rhythmic firing and responsible for the heart's autorhythmicity are located. For endurance athletes at the elite level, it is not unusual to have a resting heart rate between 33 and 50 bpm.

Maximum Heart Rate (HR_max)

The maximum heart rate (HR_max) is the age-related highest number of beats per minute of the heart when reaching a point of exhaustion without severe problems through exercise stress. It generally decreases with age.

Heart Rate Reserve (HR_reserve)

Heart rate reserve (HR_reserve) is the difference between a person's measured or predicted maximum heart rate and resting heart rate. Some methods of measurement of exercise intensity measure percentage of heart rate reserve. Additionally, as a person increases their cardiovascular fitness, their HRrest will drop, and the heart rate reserve will increase.

Target Heart Rate (THR)

For healthy people, the Target Heart Rate (THR) or Training Heart Rate Range (THRR) is a desired range of heart rate reached during aerobic exercise which enables one's heart and lungs to receive the most benefit from a workout. This theoretical range varies based mostly on age; however, a person's physical condition, sex, and previous training also are used in the calculation.

Tip:

The calculation result of this tool is for reference purposes only and is not used as a basis for diagnosis. Please refer to your doctor’s diagnosis.