Whether you are pacing a marathon, grading a multi-event competition, or dialing in daily macros, this collection covers the numbers that drive athletic performance. Tools like the Running Pace Calculator, ACFT Score Calculator, Bike Gear Ratio Calculator, Macro Calculator, and Decathlon Score Calculator give coaches, athletes, and fitness enthusiasts instant, formula-driven answers.
Check the Popular list to see which tools other athletes use most, or open the Trending tab to catch up-and-coming additions. Every calculator is free, needs no login, and runs on any phone or computer — perfect for the gym, the track, or the training table.
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Fran CrossFit Pace CalculatorEstimate calories burned in a CrossFit WOD or HIIT session using the MET formula. Enter body weight, duration and intensity (MET 8–12).
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Grams of Protein Per Meal CalculatorConvert grams of protein, carbohydrates and fat into calories. Calculate total kcal and macro percentage breakdown using the 4-4-9 Atwater factors.
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Cricket Batting Average and Economy Rate CalculatorCalculate a bowler's economy rate by dividing runs conceded by overs bowled. Instantly see runs per over and runs per ball for any cricket match.
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Tennis Rating (UTR-Style) CalculatorCalculate win percentage from a sports win-loss record. Supports ties using the standard (Wins + 0.5×Ties) / Games formula. Free and instant.
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Epley 1RM CalculatorEstimate your one-rep max (1RM) for bench press or any lift using the Epley and Brzycki formulas. Enter weight and reps to get instant results.
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Cricket Partnership Run Rate CalculatorFree cricket run rate calculator. Enter runs scored and overs bowled to get runs per over (RPO) instantly, plus a projected 50-over score.
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Golf Handicap CalculatorCalculate your golf handicap differential and estimated handicap index from your score, course rating and slope rating using the standard formula.
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Running VO2 Max CalculatorEstimate your VO2 max from a race result using the Daniels & Gilbert VDOT formula. Enter distance and finish time to get oxygen uptake in mL/kg/min.
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Percentage of 1RM CalculatorCalculate your working weight as a percentage of your one-rep max (1RM). Enter your 1RM and target percent to get the exact training load plus a full % table.
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Win Rate CalculatorCalculate your win rate percentage from wins and games played. Free win rate calculator for esports, sports, gaming and matches with instant results.
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Win-Loss-Tie Percentage CalculatorCalculate a team or player win percentage from wins, losses, and ties. Ties count as half a win, the standard sports winning percentage formula.
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Batting Average CalculatorCalculate a baseball or softball batting average (AVG) instantly from hits and at-bats. Get the standard 3-decimal AVG plus the percentage form.
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Minutes Per Mile to MPH CalculatorConvert your running or walking pace in minutes per mile to speed in miles per hour (mph). Enter minutes and seconds to get instant mph and km/h.
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Golf Course Handicap CalculatorConvert your Handicap Index to a Course Handicap using slope rating, course rating and par. Free slope-based golf handicap calculator.
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Required Run Rate (RRR) CalculatorCalculate the required run rate (RRR) in cricket — the runs per over a chasing team needs to win. Enter target, current score and overs remaining.
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True Shooting Percentage CalculatorCalculate basketball True Shooting Percentage (TS%) from points, field goal attempts, and free throw attempts. Free, instant scoring-efficiency tool.
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Barbell Plate Loading CalculatorFigure out exactly which weight plates to load on each side of your barbell to hit a target weight. Supports pounds and kilograms.
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VO2 Max Calculator — Cooper 12-Minute Run TestEstimate your VO2 max from the Cooper 12-minute run test. Enter the distance you ran in meters to get aerobic fitness in mL/kg/min.
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BMI Calculator (Body Mass Index)Free BMI calculator. Enter your weight in kg and height in cm to find your Body Mass Index and weight category instantly using the standard WHO formula.
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Fat-Burning Heart Rate Zone CalculatorFind your fat-burning heart rate zone (60–70% of max HR) by age. Free calculator using the 220-age formula to estimate your ideal cardio range.
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Treadmill Calories Burned CalculatorEstimate calories burned running on a treadmill from your weight, speed, incline and duration using the ACSM running VO₂ equation.
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Barbell Plate CalculatorCalculate exactly which weight plates to load on each side of your barbell to reach a target weight. Uses standard 45/35/25/10/5/2.5 lb plates.
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Cycling Power-to-Weight Ratio CalculatorCalculate your cycling power-to-weight ratio (W/kg) by dividing power output in watts by body weight in kilograms. Compare your climbing fitness instantly.
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Swim Pace CalculatorCalculate your swimming pace per 100m and 50m from any distance and time. Get pace, speed in m/s and km/h instantly. Free swim pace calculator.
Frequently asked questions
What sports and fitness topics can I calculate here?
The category spans endurance sports (running pace, cycling gear ratios), military and competitive fitness scoring (ACFT, IAAF, decathlon), nutrition planning (macros), and baseball analytics (slugging percentage, strikeout rate). If you can measure it in sport, there is likely a ready-made tool waiting.
How accurate are the sports and fitness calculations?
Each tool applies the official or widely accepted formula for that metric — such as the U.S. Army's ACFT scoring tables and standard IAAF athletics formulas. Results are estimates intended for training guidance. These calculators are NOT medical advice; consult a qualified healthcare professional before making significant changes to your training load or nutrition plan.
Do I need to create an account to use these tools?
No account, email address, or subscription is required. Every calculator is fully free and available the moment you open the page — no barriers between you and your numbers.
Is my personal data — weight, age, times — stored anywhere?
Nothing you enter is saved. All computation happens locally in your browser, and no personal data is sent to or retained by our servers. Your training metrics stay private.
Which sports calculators are people using most?
The category list is ranked by actual usage, so the top entries reflect the tools real athletes reach for most often. Switch to the Trending tab to see which calculators are gaining traction this week.