Sports and Fitness

  • Max Heart Rate Calculator
    Estimate your maximum heart rate (HRmax) from age using the Fox (220 − age) or Tanaka (208 − 0.7 × age) formula, plus training heart-rate zones.
  • MET Minutes Calculator
    Calculate MET-minutes from any activity's MET value and duration. Find per-session and weekly physical activity totals to track exercise intensity.
  • Heart Rate Zone Calculator
    Calculate your 5 heart rate training zones from age or HRmax. Find target bpm ranges for fat burn, endurance, and peak performance.
  • Heart Rate Recovery Calculator
    Calculate your heart rate recovery (HRR) — the bpm drop one minute after peak exercise. Enter peak and recovery heart rate to gauge fitness.
  • Human Punch Force Calculator
    Calculate human punch force in newtons, pounds-force and kgf using fist mass, impact velocity and contact time with the impulse-momentum formula.
  • Half Marathon Pace Calculator
    Calculate your half marathon pace per km and per mile from your finish time. Get average pace, speed in km/h and mph for the 21.0975 km distance.
  • Home Runs Allowed Per 9 Innings (HR/9) Calculator
    Calculate a pitcher's HR/9 — home runs allowed per nine innings. Enter innings pitched (with partial-inning outs) and home runs allowed to get the rate.
  • Handball Calories Burned Calculator
    Estimate calories burned playing handball from MET value, body weight, and duration. Uses the standard MET energy-expenditure formula (kcal = METs x kg x hours x 1.05).
  • Ski Size Calculator
    Find your ideal ski length based on your height and skill level. Get a recommended size plus a shorter-to-longer range in centimeters.
  • Winning Percentage Calculator
    Calculate winning percentage from wins, losses, and ties. Ties count as half a win in this standard sports win % formula.
  • Save Percentage Calculator
    Calculate a goalie's save percentage (SV%) from saves and goals allowed. Free hockey and soccer goalkeeper save percentage calculator.
  • Bike Chain Length Calculator
    Calculate the correct bicycle chain length from chainstay length, largest chainring and largest cog using the rigid chain length equation. Results in inches and links.
  • Cycling Wattage Calculator
    Estimate the cycling power (watts) needed to ride at a given speed using rolling resistance, aerodynamic drag, gradient and drivetrain loss.
  • Cycling Heart Rate Zone Calculator
    Calculate your cycling heart rate training zones from your age. Find max HR and the bpm bounds for Zones 1-5 (50-90% MaxHR) to train smarter.
  • Duckworth Lewis Calculator
    Calculate the revised cricket target using the Duckworth-Lewis method from Team 1's score and each side's resource percentages. Free DLS target tool.
  • Swimming Calorie Calculator
    Estimate calories burned swimming by stroke, body weight and duration. Uses MET values for freestyle, backstroke, breaststroke and butterfly.
  • Rugby Calories Burned Calculator
    Estimate calories burned playing rugby from MET intensity, body weight and time. Uses the standard METs energy-expenditure formula. Free and instant.
  • Running Calorie Calculator
    Calculate calories burned running based on your weight, speed and duration using MET values. Free, fast and accurate running calorie estimator.
  • On Base Percentage Calculator
    Calculate baseball On Base Percentage (OBP) from hits, walks, hit by pitch, at bats and sacrifice flies. Free, instant OBP calculator with formula.
  • Fielding Percentage Calculator
    Calculate a baseball or softball fielding percentage (FPCT) from putouts, assists, and errors. Free, instant, with formula and worked example.
  • Track and Field Calories Burned Calculator
    Estimate calories burned in track and field events (athletics) using the MET formula based on event intensity, body weight, and exercise time.
  • Volleyball Calorie Burn Calculator
    Estimate calories burned playing volleyball (general, beach, competitive, wallyball, water) using the MET method by duration and body weight.
  • Softball Calories Burned Calculator
    Estimate calories burned playing softball using the MET-based formula. Choose your activity (umpire, practice, play, pitching), weight and duration.
  • Soccer Calories Burned Calculator
    Estimate calories burned playing soccer (football) from your body weight and play time using the standard METs energy-expenditure formula.

Categories