Fitness Calculators & Tools
Free tools to dial in your training and nutrition. Science-backed formulas, zero fluff.
Interactive Tools
Am I Big?
Compare your measurements against population averages and gym standards
Strength Level
See where your lifts rank from Beginner to Elite
Bulk or Cut?
Take the quiz to get a personalized recommendation
Muscle Potential
Calculate your natural genetic ceiling with the Casey Butt formula
Push-Up Test
Get your fitness rating and a free 4-week improvement plan
Workout Split Quiz
Find the best training split for your schedule and goals
Calorie Cycling Planner
Get daily calorie and macro targets for training and rest days
Strength
1RM Calculator
Estimate your one-rep max from any weight and rep count using the Epley formula
🏆Wilks Score Calculator
Compare powerlifting strength across weight classes
📈DOTS Score Calculator
Modern alternative to Wilks for comparing powerlifting totals
📋Strength Standards
See how your lifts compare to established strength benchmarks
📊Rep Max Percentage Table
View training loads at every percentage of your 1RM
Body Composition
BMI Calculator
Body mass index with category rating
📐Body Fat % Calculator
Estimate body fat percentage using the US Navy method
💪Lean Body Mass Calculator
Calculate your fat-free mass from weight and body fat percentage
⚖️Ideal Body Weight Calculator
Estimate ideal weight using the Devine formula
🧬Fat-Free Mass Index (FFMI)
Measure muscularity relative to height, adjusted for body fat
📏Waist-to-Hip Ratio
Assess health risk based on fat distribution pattern
Nutrition
Daily Protein Calculator
Daily protein needs based on weight and training goals
🔥TDEE / Calorie Calculator
Total daily energy expenditure and calorie targets
🍽️Macro Calculator
Calculate protein, fat, and carb targets based on your goals
💧Daily Water Intake Calculator
Calculate recommended daily water intake based on weight and activity
📉Calorie Deficit Calculator
Plan your daily calorie deficit to reach your target weight
📈Bulking Calorie Calculator
Calculate calorie targets for lean, standard, and aggressive bulks
Training
Training Volume Calculator
Estimate weekly training volume and per-muscle-group sets
⏱️Rest Period Calculator
Get evidence-based rest period recommendations for your training
📈Progressive Overload Planner
Plan week-by-week weight progression for any lift
📅Training Age Calculator
Calculate your effective training age based on actual consistency