1-Rep Max Calculator
Calculator
History & Stats
0 kg
Estimated 1-Rep Max
Exercise
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Body Part Exercises
Plate Calculator
What to load on each side of the bar — plus a warm-up ladder.
Workout Log
Tracks total sets per exercise across all sessions.
Body Composition (optional)
Fitness Age (optional)
Macro Calculator
Custom Diet Planner
Calculates exact grams of food to hit your target calories.
Body Fat Estimate
📏 Caliper (JP3)
⚓ Navy Method
Uses Jackson-Pollock 3-site formula. Enter your pinch measurements in INCHES.
Measurements (Inches)
US Navy circumference method. Accurate to ±1.5% body fat.
Water Intake
🤖 AI Workout Suggester
💊 Supplements Library
Each supplement shows why it's used, benefits, downsides, dose & best time.
⚖️ Body Weight Tracker
📈 Progressive Overload