Calculate Target Heart Rate Zones
Heart-rate zones are estimates and methods vary. Use your chosen intensity range consistently.
Formula: Estimated maximum heart rate β 220 β age; Target zone = maximum heart rate Γ selected intensity
Use the exact inputs shown by the calculator and keep units or notation consistent. The displayed formula provides a useful way to review the arithmetic.
Substitute the same inputs into the displayed formula and compare the calculated value with the result shown by the tool.