# How to Calculate Maximum & Minimum Heart Rate

To gauge the success of any exercise program, you can rely on several measurements such as the weight lost or gained, changes in muscle mass or the time it takes to complete a training circuit. While some of these methods require specific technology, one that does not is knowing your maximum and minimum training heart rate. These numbers can help you change, drop or add an exercise if you don’t meet your specified goals.

Calculate your maximum heart rate in beats per minute by subtracting your age from 220. For example, if you are 35 years old, 220 minus 35 equals a maximum rate of 185.

### How to Calculate VO2 Reserve

Find your minimum training rate by taking 60 to 70 percent of the maximum. For example, 185 times .60 equals 111 and 185 times .7 equals 129.5. Train within the range of 60-70 percent of maximum to burn fat and develop endurance.

Determine your aerobic zone by using 70-80 percent of the maximum. For example, 185 times .8 equals 148. Training between 129 to 148 beats per minute develops your cardiovascular system.