Heart Rate Training Zone Calculator

Most people training in "Zone 2" are not actually in Zone 2. They are ten beats too high, breathing a little too hard, and wondering why their easy runs never feel easy.
That mistake is common and fixable with math you can do in about 10 seconds.
This Zone 2 heart rate calculatoruses your age (and, if you want more precision, your resting heart rate) to give you a personal training range instead of a generic guess. Below the calculator, you will find the exact formulas behind the numbers, a full age-by-age breakdown, and answers to the questions people actually search for before they hit "start" on a run.