Sports and Fitness

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.

  • Gear Inches Calculator
    Calculate bicycle gear inches from wheel diameter, chainring and rear cog teeth. Compare gearing, ratio and metres of development per pedal stroke.
  • Arrow Spine Calculator
    Estimate the recommended arrow spine (deflection) from your draw weight, arrow length, point weight, and bow type. Free archery spine calculator.
  • Win Rate Calculator
    Calculate your win rate percentage from wins and games played. Free win rate calculator for esports, sports, gaming and matches with instant results.
  • Win-Loss-Tie Percentage Calculator
    Calculate a team or player win percentage from wins, losses, and ties. Ties count as half a win, the standard sports winning percentage formula.
  • Batting Average Calculator
    Calculate a baseball or softball batting average (AVG) instantly from hits and at-bats. Get the standard 3-decimal AVG plus the percentage form.
  • Minutes Per Mile to MPH Calculator
    Convert 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.
  • Golf Course Handicap Calculator
    Convert your Handicap Index to a Course Handicap using slope rating, course rating and par. Free slope-based golf handicap calculator.
  • Cricket Partnership Run Rate Calculator
    Free cricket run rate calculator. Enter runs scored and overs bowled to get runs per over (RPO) instantly, plus a projected 50-over score.
  • Army TSP Contribution Calculator (US)
    Estimate your US Army Thrift Savings Plan (TSP) contributions and BRS agency match — automatic 1% plus tiered matching up to 5% of base pay.
  • Army Leave Days Accrual Calculator (US)
    Estimate US Army leave accrual at 2.5 days per month, factoring in your starting balance and leave used, with the 60-day carryover cap applied.
  • ACFT Points Needed to Pass Calculator
    Find how many ACFT points you still need to hit your target total and the average score required per remaining event. Quick US Army fitness planner.
  • Rowing Split Calculator
    Calculate your rowing split (pace per 500m) from distance and time. Free erg/rowing pace calculator with seconds, mm:ss split, and speed in m/s.
  • Army ETS Date Calculator
    Estimate your US Army ETS date from your enlistment date and contract length. See days remaining, time in service, and percent of contract complete.
  • Army BAH Calculator (US)
    Calculate your Army Basic Allowance for Housing (BAH). Enter monthly BAH rates by rank, ZIP, and dependents to see annual totals and differences.
  • Army Reserve / National Guard Drill Pay Calculator
    US Army Reserve & National Guard drill pay calculator. Estimate weekend drill pay from your monthly base pay and number of drill periods (4 per weekend).
  • Army Pay Raise Calculator (US)
    Estimate your new US Army monthly and annual basic pay after the annual military pay raise (COLA). Enter current pay and raise percent.
  • QBR Calculator (NCAA Passer Rating)
    Calculate NCAA college football QBR / passer rating from completions, attempts, yards, touchdowns and interceptions using the official formula.
  • Tennis Rating (UTR-Style) Calculator
    Calculate win percentage from a sports win-loss record. Supports ties using the standard (Wins + 0.5×Ties) / Games formula. Free and instant.
  • Pace to Speed Converter
    Convert running pace (minutes per km) to speed in km/h and m/s instantly. Enter your min/km pace and get your speed using Speed = 60 / Pace.
  • Pace Calculator
    Free pace calculator: enter your total time and distance to find your average pace in minutes per mile or per kilometer, plus average speed.
  • APFT 2-Mile Run Score Calculator
    Estimate your US Army APFT/IPFU 2-mile run score (0-100) by age group and gender. Enter your run time to get points instantly.
  • APFT Sit-Up Score Calculator
    Calculate your US Army APFT sit-up score (0–100 points) from reps and age band. Find out if you pass the 2-minute sit-up event.
  • 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.
  • APFT Push-Up Score Calculator (US Army)
    Estimate your US Army APFT push-up score (0–100 points) from reps, age and gender. See points per rep, reps for a max score, and the pass threshold.

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.

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