1RM Calculator (Brzycki Equation)
The Brzycki 1RM Estimator is a precision tool designed to predict an athlete's maximum lifting capacity without the physical strain of a true maximal effort. By utilizing the Brzycki Equation—which calculates strength based on the inverse relationship between load and repetitions—the widget converts submaximal performance data into a theoretical 100% peak. The tool requires three specific inputs to ensure accuracy: the total load lifted, the number of repetitions (ideally 3 or fewer for peak precision), and an intensity adjuster to account for "reps in reserve." This multi-variable approach allows coaches and athletes to safely determine training percentages and track strength trends over time without risking injury or central nervous system fatigue.