Sports and Fitness

  • 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.
  • Skiing Calories Burned Calculator
    Estimate calories burned skiing, cross-country, snowboarding or snowshoeing using MET values, body weight and time. Free MET-based kcal calculator.
  • Rugby Score and League (Bonus) Points Calculator
    Add up rugby union scores from tries, conversions, penalties and drop goals, then compute league points with try and losing bonuses. Free and instant.
  • ACFT Score Calculator
    Enter deadlift (lbs), standing power throw (m), hand‑release push-ups, sprint-drag-carry, plank, and 2‑mile run to get your total ACFT score.
  • Bike Gear Ratio Calculator
    Calculate bike gear ratio and gear inches from chainring teeth, cog teeth, and wheel diameter to compare setups and fine-tune your gearing for any bike.
  • Fantasy Cricket Points Calculator
    Estimate Dream11-style fantasy cricket points from runs, wickets, catches and bonuses, with captain/vice-captain multipliers, for T20 scoring.
  • Army ACFT Total Score Calculator (US)
    Add your six US Army ACFT event scores (0–100 each) to get your total out of 600 and see if you pass the 60-point minimum per event.

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