
Don't measure your resting heart rate within two hours of exercise or a stressful event as your heart rate may still be elevated.There are a couple of other conditions you need to meet to make sure the measurement you make is as accurate as possible: This is how many times per minute your heart beats when you are just sitting around, doing not much. The second and final piece of information you need to give the heart rate calculator is your resting heart rate. If you have received a test, input that number into the Maximum heart rate field. Scientists currently think it depends on your age, sex, BMI, genetics, activity levels, to name but a few (the average heart rate maximum within an Olympic level rowing team was found to vary from 160 - 220, so it really does vary a lot!) The only way to know for sure is to get a maximum heart rate test from a physician. There is no easy way to get a 100% accurate answer to the question "How to calculate heart rate maximum?" with an equation - it varies too much from person to person. To compare, the commonly used Haskell & Fox equation, Heart rate maximum = 220 - age, was, according to one of its creators, "never supposed to be an absolute guide to rule people's training." But you can use whatever formula you wish take a look at our max heart rate calculator and input whatever number you want into the Maximum heart rate field. We chose this formula because it is one of the most accurate formulas around. We use this to calculate your heart rate maximum with the Oakland non-linear formula:

The first bit of information you need to give is your age. Before we get into the thick of this heart rate calculator, we should discuss the information you need to provide to get your heart rate zones and find out if you have a healthy resting heart rate.
