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Sports & Fitness Calculators

Running pace, training zones, one-rep max and sports performance calculators for athletes and weekend warriors alike.

103 calculatorsPace, performance & training calculators

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Race Time PredictorPredict your finish time at a new race distance from a recent race result, using the Riegel formula.Wilks Score CalculatorCalculate your Wilks score to compare powerlifting totals fairly across different body weights.OPS CalculatorCalculate OPS, a batter's on-base percentage plus slugging percentage combined into one number.1RM Percentage ChartCalculate training weights for every percentage of your one-rep max, for programmed strength training.

All calculators

Karvonen Target Heart Rate CalculatorCalculate personalized training heart rate zones using the Karvonen method, which accounts for your resting heart rate.
Swim Pace CalculatorCalculate your swimming pace per 100 meters or yards from total distance and time.
Cycling Speed CalculatorCalculate your average cycling speed from distance and ride time.
Golf Handicap Differential CalculatorCalculate your handicap differential for a single round using your score, course rating, and slope rating.
Basketball Shooting Percentage CalculatorCalculate field goal, three-point, and free throw percentages, plus effective field goal percentage.
Batting Average & On-Base Percentage CalculatorCalculate batting average and on-base percentage from at-bats, hits, walks, and other plate appearances.
Winning Percentage CalculatorCalculate a team's or player's winning percentage from wins, losses, and ties.
Betting Odds Converter & Payout CalculatorConvert American odds to decimal odds and calculate the payout on a stake.
Bowling Score CalculatorCalculate your final ten-pin bowling score from your roll-by-roll pin count, including strike and spare bonuses.
Bowling Handicap CalculatorCalculate your league bowling handicap from your average and the league's base score and percentage.
Vertical Jump Power CalculatorEstimate peak and average leg power output from your vertical jump height and body mass, using the Harman formula.
Pythagorean Win Expectation CalculatorEstimate a team's expected winning percentage from points/runs scored and allowed, using the Pythagorean expectation formula.
Rowing Ergometer Pace & Watts CalculatorCalculate your rowing split pace per 500m and estimated power output in watts, using the standard Concept2 formula.
Cricket Strike Rate & Average CalculatorCalculate a batter's strike rate and batting average from runs, balls faced, and dismissals.
NFL Passer Rating CalculatorCalculate the official NFL passer rating from completions, attempts, yards, touchdowns, and interceptions.
Marathon Pace & Split CalculatorCalculate your required per-mile and per-kilometer pace, plus checkpoint splits, for a marathon goal time.
Golf Course Handicap CalculatorConvert your Handicap Index into a Course Handicap for a specific course, using the USGA World Handicap System formula.
Soccer Pass Accuracy CalculatorCalculate a player's or team's pass completion percentage.
Tennis Serve Statistics CalculatorCalculate your first serve percentage and ace rate from a match or practice session.
Volleyball Hitting Percentage CalculatorCalculate a volleyball hitter's attack efficiency (hitting percentage) from kills, errors, and total attempts.
Yards Per Carry CalculatorCalculate a football running back's average yards gained per rushing attempt.
SWOLF Score CalculatorCalculate your SWOLF score - a swimming efficiency metric combining stroke count and time per pool length.
Basketball Game Score CalculatorCalculate John Hollinger's Game Score - a single-number summary of a basketball player's statistical performance in one game.
ERA (Earned Run Average) CalculatorCalculate a pitcher's Earned Run Average from earned runs allowed and innings pitched.
WHIP (Walks + Hits per Inning Pitched) CalculatorCalculate a pitcher's WHIP - the average number of baserunners allowed per inning.
Youth Pitch Count Limit CalculatorCheck recommended maximum pitch counts and required rest days for youth baseball players by age.
Slugging Percentage CalculatorCalculate a batter's slugging percentage, which weights extra-base hits more heavily than singles.
True Shooting Percentage CalculatorCalculate a basketball player's true shooting percentage, which accounts for the extra value of three-pointers and free throws.
Cycling Power-to-Weight Ratio CalculatorCalculate your cycling power-to-weight ratio (watts per kilogram), a key indicator of climbing performance.
Basketball Rebound Rate CalculatorCalculate a player's rebound percentage - the share of available rebounds they grabbed while on the court.
Golf Score to Par CalculatorCalculate your score relative to par for a round or hole.
Boxing/MMA Weight Class CalculatorFind your boxing or MMA weight class from your body weight.
Pitch Reaction Time CalculatorCalculate how much time a batter has to react to a pitch, based on pitch speed and distance to home plate.
Boston Marathon Qualifying Time CheckerCheck your marathon finish time against typical Boston Marathon qualifying standards by age and gender.
Playoff Magic Number CalculatorCalculate how many combined wins and opponent losses are needed to clinch a playoff spot or division title.
Football (Soccer) League Points CalculatorCalculate league standings points from wins, draws, and losses using the standard 3-1-0 system.
Games Behind CalculatorCalculate how many games behind the division leader a team is in the standings.
Assist-to-Turnover Ratio CalculatorCalculate a basketball player's assist-to-turnover ratio, a key ball-handling efficiency metric.
Fantasy Football Points CalculatorCalculate fantasy football points using standard scoring rules.
Golf Stableford Scoring CalculatorCalculate Stableford points for a hole based on your score relative to par.
Track Interval Pace CalculatorCalculate target split times for track repeat intervals, like 8x400m at a goal pace.
Fielding Percentage CalculatorCalculate a baseball or softball player's fielding percentage from putouts, assists, and errors.
Basketball Turnover Percentage CalculatorCalculate a player's turnover percentage - the estimated share of their possessions that ended in a turnover.
Marathon Negative Split CalculatorCalculate first-half and second-half pacing targets for a negative-split marathon strategy.
Golf Net Score CalculatorCalculate your net score by applying your course handicap to your gross score.
Race Taper CalculatorPlan your weekly mileage reduction in the final weeks before a race using standard taper percentages.
Grade Adjusted Pace (GAP) CalculatorEstimate your flat-ground equivalent running pace on hilly terrain using the Minetti energy cost of running model.
Age-Graded Running Score CalculatorEstimate an age-adjusted equivalent time for a masters runner, based on typical age-related endurance decline rates.
Running Cadence CalculatorCalculate your running cadence (steps per minute) from your pace and average stride length.
Altitude Pace Adjustment CalculatorEstimate how much slower to expect your running pace at elevation compared to sea level.
Heat & Humidity Pace Adjustment CalculatorEstimate how much to slow your goal pace when racing or training in hot conditions.
Marathon Fueling (Carb Intake) CalculatorCalculate how many grams of carbohydrate and gels you need during a long race, based on sports nutrition guidelines.
Long Run Progression CalculatorPlan a safe weekly buildup of your long run distance using the 10% rule.
DOTS Score CalculatorCalculate your DOTS score, a modern bodyweight-adjusted powerlifting scoring formula used by USA Powerlifting.
IPF GL Points CalculatorCalculate IPF GL (GoodLift) points, the official scoring formula of the International Powerlifting Federation.
Sinclair Coefficient CalculatorCalculate the Sinclair total, used in Olympic weightlifting to compare totals across bodyweight categories.
Barbell Plate Loading CalculatorCalculate exactly which plates to load on each side of the bar to hit your target weight.
Relative Strength Ratio CalculatorCalculate your lift-to-bodyweight ratio and see where it falls on common strength-level benchmarks.
Training Volume Load (Tonnage) CalculatorCalculate the total tonnage (volume load) of a lifting session from sets, reps, and weight.
Deload Week CalculatorCalculate reduced training weight and volume targets for a planned deload (recovery) week.
FIP (Fielding Independent Pitching) CalculatorCalculate a pitcher's FIP, an ERA-scale metric that isolates outcomes a pitcher controls directly.
Runs Created CalculatorCalculate a batter's basic Runs Created score, Bill James's original estimate of offensive run contribution.
Stolen Base Success Rate CalculatorCalculate a base stealer's success rate from stolen bases and times caught stealing.
Strikeout-to-Walk Ratio (K/BB) CalculatorCalculate a pitcher's strikeout-to-walk ratio, a core command and control metric.
Basketball Usage Rate CalculatorCalculate a player's usage rate - the estimated percentage of team possessions they used while on the floor.
Free Throw Rate CalculatorCalculate a basketball player's free throw rate - how often they get to the line relative to field goal attempts.
Basketball Net Rating CalculatorCalculate offensive rating, defensive rating, and net rating per 100 possessions.
Football Turnover Margin CalculatorCalculate a football team's turnover margin from takeaways forced and giveaways committed.
Time of Possession Percentage CalculatorCalculate what percentage of the game a football team controlled possession of the ball.
Football Field Goal Percentage CalculatorCalculate a kicker's field goal conversion percentage.
Shots on Target Percentage CalculatorCalculate what percentage of a soccer player's or team's shots were on target.
Soccer Clean Sheet Percentage CalculatorCalculate the percentage of matches a goalkeeper or team finished without conceding a goal.
Hockey Save Percentage & GAA CalculatorCalculate a hockey goaltender's save percentage and goals against average.
Hockey Plus-Minus CalculatorCalculate a hockey player's plus-minus rating from even-strength goals for and against while on the ice.
Faceoff Win Percentage CalculatorCalculate a hockey player's faceoff win percentage.
Cricket Bowling Economy Rate CalculatorCalculate a bowler's economy rate (runs conceded per over) from runs and overs bowled.
Cricket Net Run Rate (NRR) CalculatorCalculate net run rate, the tiebreaker statistic used to separate teams level on points in cricket tournaments.
Rugby Points CalculatorCalculate a rugby team's total points from tries, conversions, penalties, and drop goals, in union or league scoring.
Critical Swim Speed (CSS) Pace CalculatorCalculate your Critical Swim Speed training pace from 200m and 400m time trial results.
Bike Gear Ratio & Development CalculatorCalculate your bike's gear ratio, gear inches, and development (distance traveled per pedal revolution).
Cycling Cadence CalculatorCalculate the pedaling cadence needed to hit a target speed in a given gear.
Bike Frame Size CalculatorEstimate your recommended road or mountain bike frame size from your inseam length.
Century Ride Pacing CalculatorCalculate required average speed and checkpoint splits for a 100-mile or 100-kilometer century ride goal time.
Golf Altitude Distance Adjustment CalculatorEstimate how much farther your golf shots fly at elevation due to thinner air.
Golf Handicap Index From Multiple Rounds CalculatorEstimate your Handicap Index by averaging your best differentials from a list of recent rounds.
Tennis Break Point Conversion Rate CalculatorCalculate what percentage of break point opportunities a tennis player converted.
Combat Sports Weight Cut CalculatorCalculate the rate of weight loss needed to safely reach a target weigh-in weight.
Wrestling Weight Class CalculatorFind the nearest scholastic wrestling weight class for a given body weight.
Climbing Grade ConverterConvert rock climbing route grades between the Yosemite Decimal System (YDS) and the French sport grading scale.
Triathlon Race Time PredictorPredict your total triathlon finish time from your swim, bike, and run pace targets plus transition times.
Hiking Pace with Elevation Gain Calculator (Naismith's Rule)Estimate hiking time from distance and elevation gain using Naismith's Rule.
Backpack Weight Ratio CalculatorCalculate your backpacking pack weight as a percentage of your bodyweight.
Backpacking Food Weight CalculatorCalculate the total food weight to pack for a backpacking trip based on daily calorie needs and food calorie density.
Trail Grade (Steepness) CalculatorCalculate a hiking trail's average grade (steepness) from elevation gain and distance.
Ski Binding DIN Setting EstimatorGet a rough estimate of your ski binding release (DIN) setting based on weight, skier type, and age.
Archery Round Score CalculatorAdd up your arrow scores from a practice round or competition end.
Carb-Loading CalculatorCalculate your daily carbohydrate target for pre-race carb loading based on bodyweight.
Golf Swing Speed to Distance CalculatorEstimate your approximate driver carry distance from your clubhead swing speed.
Basketball Per-36-Minutes Stats CalculatorNormalize a basketball player's counting stats to a per-36-minutes rate for fair comparison across different playing times.

About Sports & Fitness Calculators

Whether you're pacing a marathon, finding your heart-rate training zones, or working out your one-rep max, these calculators use the same formulas coaches and sports science reference - built for quick answers mid-workout, not a spreadsheet.