Fitness Calculator

  • Running Pace Calculator
    Enter distance and finish time to calculate running pace per kilometer and per mile, plus speed in km/h and mph—plan training and race goals.
  • Treadmill Pace & Incline Calculator
    Convert treadmill speed (mph) to running pace per mile and find the incline-equivalent flat pace using the ACSM VO2 running equation.
  • Calories Burned Per Step Calculator
    Estimate calories burned walking by step count, body weight and stride length. See total kcal, calories per step and distance walked.
  • Calories Burned Running Calculator (by Speed)
    Estimate calories burned running by speed (mph), body weight and duration using MET values. Fast, free running calorie calculator for any pace.
  • Calories Burned Hiking Calculator
    Estimate calories burned hiking using the MET formula. Enter your weight, duration, and terrain to see total kcal burned, per minute and per hour.
  • Calories Burned Dancing Calculator
    Estimate calories burned dancing by style, body weight and duration using MET values. Free calculator for Zumba, salsa, ballroom and more.
  • Calories Burned Rowing Machine Calculator
    Estimate calories burned on a rowing machine from your weight, duration and intensity using the MET formula. Free, instant rowing calorie calculator.
  • Calories Burned on Elliptical Calculator
    Estimate calories burned on an elliptical machine from your weight, workout duration, and intensity (MET) using the standard MET energy-expenditure formula.
  • Calories Burned Climbing Stairs Calculator
    Estimate calories burned climbing stairs from your weight, time, and intensity using the MET formula. Free, instant stair-climbing calorie calculator.
  • Calories Burned Doing Yoga Calculator
    Estimate how many calories you burn doing yoga using the MET formula. Enter your weight, session length and yoga style for an instant kcal estimate.
  • Calories Burned Jumping Rope Calculator
    Estimate how many calories you burn jumping rope by body weight, duration and intensity using MET values. Free, instant calorie calculator.
  • Calories Burned Walking Calculator
    Estimate calories burned walking with this MET-based calculator. Enter your weight, walking time, and pace to get kcal burned, per minute and per hour.
  • One Rep Max Calculator
    Estimate your one rep max (1RM) from weight lifted and reps using the Epley and Brzycki formulas. Free, instant, and works in kg or lb.
  • Creatine Dosage Calculator
    Calculate your daily creatine monohydrate dose by body weight: loading phase (0.3 g/kg split in 4) and maintenance (0.03 g/kg, ~3-5 g/day).
  • Running Calories Calculator (Distance & Weight)
    Estimate calories burned running from your body weight and distance. Uses the simple 0.75 × lb × miles (or 1.036 × kg × km) rule for any pace.
  • Brzycki 1RM Calculator
    Estimate your one-rep max (1RM) with the Brzycki formula. Enter the weight lifted and reps performed to get your maximum strength estimate instantly.
  • Running Pace & Race Time Predictor
    Predict your race finish time and pace for any distance using Riegel's formula from a known result. Free running pace and time predictor calculator.
  • Swim Pace Calculator (Per 100m)
    Calculate your swimming pace per 100m from any distance and time. Get your per-50m split and average speed in km/h instantly.
  • Treadmill Calories Burned Calculator
    Estimate calories burned on a treadmill from your weight, speed, incline and duration using the ACSM VO2 walking/running equation.
  • FFMI Calculator
    Calculate your Fat-Free Mass Index (FFMI) and height-adjusted FFMI from weight, height, and body fat percentage to gauge muscle mass.
  • Miles to Steps Calculator
    Convert miles to steps instantly. Enter distance and your stride length to estimate how many steps you walked or need to walk.
  • Wilks Calculator
    Calculate your Wilks score from bodyweight and total lifted (kg). Uses the original Wilks coefficient formula for fair powerlifting comparison.
  • Scuba Weight Calculator
    Estimate how much weight you need for scuba diving based on body weight, water type (salt/fresh), and your exposure suit. Quick starting-point guide.
  • Triathlon Heart Rate Training Zones Calculator
    Calculate sport-specific run and bike heart rate training zones for triathlon from your lactate threshold heart rate (LTHR) using the Joe Friel method.

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