Cardio calculator
MAF heart rate calculator
Calculate your Maffetone maximum aerobic heart rate from age and training status, then use the 10 bpm range for easy aerobic work.
Max aerobic heart rate
145bpm
MAF range
135-145 bpm
Conservative cap
140 bpm
What is the MAF heart rate?
The MAF method uses a simple cap for low-intensity aerobic training: 180 minus age, adjusted for training history and recovery status. Most sessions stay below that cap rather than chasing a faster pace every day.