A study published in the March 2001 issue of The Journal of the American College of Cardiology presents a new formula for estimating maximum heart rate: 208 minus 0.7 times age. The old, widely-published formula for estimating maximum heart rate is 220 minus age. The new formula gives higher estimated maximum heart rates for older people, with the new and old heart rate curves intersecting at age 40.
The New York Times Story is worth reading to learn the surprising story of how the original formula came about.
Calculate your own estimated Maximum Heart Rate and Training Range.
See our article on monitoring your heart rate for more information.