Free fitness calculators and tools built for lifters who train with purpose. Every tool works instantly in your browser — no accounts, no paywalls, no data collected.
Enter any weight and rep count to estimate your true one-rep max using Epley or Brzycki formulas. Includes a full training percentage chart with strength, hypertrophy, and endurance zones.
Calculate 1RMGet your daily calorie target and personalized protein, carb, and fat split based on Mifflin-St Jeor BMR, your activity level, and whether you're cutting, maintaining, or bulking.
Calculate MacrosType your target weight and see exactly which plates to load on each side. Supports lb and kg with any bar type. Visual barbell diagram shows the setup instantly.
Load PlatesLog sets, reps, and weight per session to track total training volume over time. Bar charts show your progression and a log table keeps every session recorded. Data saves in your browser.
Track VolumeCompare up to 3 products side by side on price, material, weight capacity, dimensions, and warranty. The lowest price is highlighted automatically.
Compare GearEnter your room dimensions, check the equipment you want, and see a visual floor plan with fit warnings — before you buy anything.
Plan Your Gym"Finally, a fitness calculator site that doesn't ask for my email before giving me the answer. The 1RM calculator alone is worth the visit."