Fitness
Calculators
Practical fitness calculators for bodybuilders and PED users: calories, training loads, peptide dosing, and body composition. All calculations run locally in your browser — no data is sent to any server.
Calorie & TDEE Calculator
Calculate your total daily energy expenditure based on weight, height, age, and activity level. Uses the Mifflin-St Jeor equation.
Open CalculatorBench Press 1RM Calculator
Estimate your one-rep maximum in the bench press from your working weight and rep count. Seven established formulas compared.
Open CalculatorPeptide Dosage Calculator
Calculate injection volume when reconstituting peptides. Enter vial size in mg, bacteriostatic water volume, and desired dose in mcg.
Open CalculatorTRT Dosage Calculator
Calculate injection volume for testosterone based on vial concentration and your prescribed dose in mg per injection.
Open CalculatorBMI & Body Fat Calculator
Body mass index and estimated body fat percentage using the U.S. Navy method. Flags values outside healthy reference ranges.
Open CalculatorMore Tools
Bloodwork unit converter, liver load estimator, body-weight dosage calculator, and additional tools currently in development.
In DevelopmentAll fitness calculators are provided for educational and reference purposes only. Results are not medical recommendations. Consult a qualified physician before applying any protocol. See our Disclaimer for full details.
