Strength Training

One Rep Max Calculator: How to Calculate Your 1RM Strength

Testing your max can be dangerous. Learn how to estimate your One Rep Max safely using math, understand the different formulas, and learn how to use 1RM percentages to design a better workout.

Health & Fitness

Lean Body Mass Calculator: How to Calculate LBM & Muscle

Your weight doesn't tell the whole story. Learn why Lean Body Mass is the real "engine" of your metabolism, how to calculate LBM accurately, and how to use it to set your protein goals.

Health & Fitness