Bench Press Calculator - Calculate your one-rep maximum (1RM) for bench press using Brzycki, Epley, or Lander formulas. Get personalized training zones, percentage charts, and strength level assessment.
BMR Calculator - Calculate your BMR (basal metabolic rate) and daily calorie needs with the Mifflin-St Jeor and Harris-Benedict equations. Includes TDEE, activity-level breakdown, macronutrient estimates, and step-by-step formula walkthrough.
Body Fat Percentage Calculator - Calculate your body fat percentage using the US Navy Method with visual body composition breakdown, fitness category assessment, and personalized health recommendations.
Calorie Burned Calculator - Calculate calories burned during 50+ activities with MET values, personalized insights, food equivalents, and interactive visualization. Supports metric and imperial units.
Calorie Deficit Calculator - Calculate your personalized calorie deficit, TDEE, and BMR to create an effective weight loss plan with meal suggestions and progress tracking.
Max Heart Rate Calculator - Calculate your maximum heart rate using 6 scientifically-validated formulas including Tanaka, Gulati, and traditional methods. Get personalized training zones for optimal workout intensity.
One Rep Max (1RM) Calculator - Calculate your one-rep maximum (1RM) using 7 scientific formulas. Get training zone percentages, warm-up sets, and visualize your strength potential for any exercise. Featured
Running Pace Calculator - Calculate your running pace, finish time, or distance. Features pace zone classification, speed conversion, projected race times, and training tips for 5K, 10K, Half Marathon, Marathon, and Ultra distances.
Target Heart Rate Calculator - Calculate your target heart rate zones using the Karvonen method. Find your optimal training zones for fat burning, cardio, and peak performance with personalized heart rate targets.
TDEE Calculator - Calculate your TDEE, BMR, BMI with multiple formulas (Mifflin-St Jeor, Harris-Benedict, Katch-McArdle). Get personalized macro recommendations and visualize your calorie breakdown.
VO2 Max Calculator - Calculate your VO2 Max using the Cooper 12-minute run test. Get personalized fitness assessment, training recommendations, and compare your cardiovascular fitness to age and gender norms.
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