One Rep Max (1RM) Calculator
Estimate your 1-rep maximum lift, calculate training percentages, compare scientific formulas, and get custom warmup & barbell plate breakdowns.
🎯 Target Rep Max & Goal Calculator
Enter your known 1-Rep Max to calculate exactly how much weight to load for your target working sets (e.g., 3RM, 5RM, 8RM, 10RM) or custom percentage.
🏆 Strength Classification Standards
Compare your lifts across standard strength brackets: Beginner, Novice, Intermediate, Advanced, and Elite.
⚡ Progressive Warm-Up Sets & Barbell Plate Loader
Get an optimal 5-step warmup progression to prepare your nervous system and avoid injury before heavy working sets.
📜 Your Saved 1RM History
Track your strength progress over time. Records are safely stored in your browser.
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