Maximum heart rate is the maximum number of beats made by your heart in 1 minute of effort.
For decades, athletes have used maximum heart rate as a way to figure out which zones they should be training in.
Formula to calculate maximum heart rate.
The most common wisdom was to subtract your age from 220, a figure representing the greatest number of beats per minute your heart can achieve safely.
![Calculate Maximum Heart Rate.](https://www.learntocalculate.com/wp-content/uploads/2020/09/maximum-heart-rate.png)
Example:
Calculate the maximum heart rate of a 45 year old man.
![Calculate Maximum Heart Rate.](https://www.learntocalculate.com/wp-content/uploads/2020/09/maximum-heart-rate-2.png)
Thus, the maximum heart rate of the man is 175 beats per minute.