Free Fitness Tools & Calculators

• One Rep Max (1RM) Calculator — Estimate the maximum weight you can lift for one repetition using the Epley formula.
• TDEE Calculator — Calculate your Total Daily Energy Expenditure for fat loss, maintenance, and muscle gain.
• BMI Calculator — Calculate your Body Mass Index and understand what it means for your health.
• Body Fat Calculator — Estimate body fat percentage using the U.S. Navy method and visual estimation.
• Exercise Substitution Finder — Find alternative exercises that target the same muscles with different equipment.
• Workout Split Quiz — Find the best workout split for your experience level, schedule, and goals.