Know Your Numbers
Start with science. Our calculators give you the exact numbers you need - BMI, TDEE, body fat percentage, and more. No guessing, just data-driven results.
Perfect if you like data and want a clear plan
Start with CalculatorsJoin 15,000 people getting stronger with evidence-based fitness calculators, training programs, and nutrition guides.
Choose your path to a stronger, healthier you
Start with science. Our calculators give you the exact numbers you need - BMI, TDEE, body fat percentage, and more. No guessing, just data-driven results.
Perfect if you like data and want a clear plan
Start with CalculatorsReady to start sweating? Our training programs work whether you have a full gym or just a corner of your bedroom. From beginner to expert level.
Great for action-takers who want to start TODAY
Browse Training PlansKnowledge builds lasting results. When you understand the science behind training and nutrition, you stop falling for hype and start making real progress.
Ideal for those who want to understand the science
Start LearningStart with what works for most people
Quick body mass index calculation with detailed health categories and recommendations.
Calculate BMIFind your total daily energy expenditure for precise calorie and weight management.
Calculate TDEEEstimate your one-rep max safely and plan your strength training progression.
Calculate 1RMProven workout plans for every fitness level
Start your fitness journey with bodyweight basics and complete beginner-friendly routines.
No gym required
Start HereUpper/lower splits, strength foundations, and fat loss accelerator programs for steady progress.
3-5 workouts per week
Level UpPush/pull/legs, powerlifting peaking, and elite hybrid programs for serious athletes.
For experienced lifters
Go ProLearn the science behind effective training and nutrition
Master macronutrients, meal timing, supplements, and evidence-based nutrition strategies.
Learn NutritionUnderstand progressive overload, volume, intensity, and program design principles.
Study TrainingBuild lasting habits, overcome mental barriers, and develop a winning mindset.
Master Mindset