Enter your age here in years
Level of exercise as % of maximum
heart rate

Target heart rate at this level:  beats per min
Recommended target range:  to 
beats per min
The recommended intensity of aerobic exercise is within 60 to 90 percent of your maximum heart rate. The heart needs to stay elevated for at least 20 to 30 minutes to get the best results from aerobic exercise. Individuals with initially very low level of fitness can benefit from lower exercise intensities of around 50 to 60 percent.