Fitness Calculator

  • Bench Press Pyramid Calculator
    Calculate your bench press pyramid set weights from your 1RM. Get 50/60/70/80/90/100% loads rounded to the plates you have.
  • Basketball Calories Burned Calculator
    Estimate how many calories you burn playing basketball based on your weight, duration, and intensity using the standard MET formula.
  • Baseball Calories Burned Calculator
    Estimate calories burned playing baseball using MET values, duration in minutes, and body weight. Free MET-based energy expenditure calculator.
  • Backpack Weight Calculator
    Calculate your backpack weight as a percentage of body weight and see your recommended maximum pack load for safe, comfortable hiking.
  • Navy PRT Calculator
    Estimate your US Navy PRT score from plank, push-ups, and 1.5-mile run. Get per-event scores plus an overall average score and fitness category.
  • Calories Burned Calculator
    Estimate calories burned during exercise using METs, body weight, and duration. Free calories burned calculator with per-minute and per-hour totals.
  • Comfortable Exercise Heart Rate Calculator
    Find your comfortable exercise heart rate from your age using the simple 138 - age/2 rule. A light-intensity target for healthy, sweat-but-not-breathless workouts.
  • Pokémon GO Weight Loss Calculator
    Estimate calories burned and fat lost while walking and hatching eggs in Pokémon GO using your weight, distance, speed, and MET value.
  • Anaerobic Threshold Calculator
    Estimate your anaerobic threshold (AT) heart rate from age and intensity percentage. Uses AT_HR = % × (220 − age) for training zone targeting.
  • Air Force PT Calculator
    Estimate your US Air Force PT test score from push-ups, sit-ups and 1.5-mile run time. See your total points and whether you pass (75+).
  • METs Activity & Exercise Calorie Burn Calculator
    Estimate calories burned (kcal) for any daily activity or workout from its METs intensity, duration in minutes, and your body weight using the METs formula.
  • Walking Calorie Burn Calculator
    Estimate calories burned walking and distance covered from your pace (METs), body weight, and walking time. Uses the standard MET x kg x hour x 1.05 formula.
  • Target Heart Rate Calculator (Karvonen Method)
    Calculate your ideal exercise target heart rate with the Karvonen (heart-rate reserve) method using age, resting heart rate, and intensity.
  • U.S. Navy Body Fat Calculator
    Estimate body fat percentage with the U.S. Navy circumference method using height, neck, waist (and hip for women) in inches.
  • Katch-McArdle BMR Calculator
    Calculate your Basal Metabolic Rate with the Katch-McArdle formula, which uses lean body mass and body fat percentage for greater accuracy.
  • Weight Loss Percentage Calculator
    Calculate what percentage of body weight you've lost. Enter your starting and current weight to see your weight loss percentage instantly.
  • Skinfold Body Fat Calculator
    Estimate body fat percentage from 3 skinfold measurements using the Jackson-Pollock equations for men and women. Free, instant results.
  • Karvonen Formula Target Heart Rate Calculator
    Calculate your target heart rate training zone with the Karvonen formula using your age, resting heart rate, and desired exercise intensity range.
  • 5/3/1 Training Max Calculator
    Calculate your 5/3/1 Training Max (90% of 1RM) and all weekly working-set weights (65/75/85%, 70/80/90%, 75/85/95%) instantly.
  • Aerobics Calories Burned Calculator
    Estimate calories burned during aerobics or step aerobics with the MET method. Enter type, duration and body weight to get kcal and exercise intensity.

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