Series MI-11 · 111 instruments catalogued
Sports
Pace, power and performance targets computed honestly.
In Service
104 built and verified5/3/1 Calculator
Turn a one-rep max into Jim Wendler's 90% training max and the three bar-loadable working weights for week 1 of a 5/3/1 cycle.
In service MI-11-0025k Pace Calculator
Turn a 5K finish time and distance into your exact pace in minutes per kilometre — the number behind every 5K interval session and race-day split.
In service MI-11-004Anaerobic Threshold Calculator
Estimate your anaerobic threshold heart rate from age and a choice of three max-heart-rate formulas — plus the surrounding 80-90% training band.
In service MI-11-005Ape Index Calculator
Subtract your height from your arm span to find your ape index, the reach number climbers, boxers and basketball players use to talk about wingspan.
In service MI-11-006Arrow FOC Calculator
Work out an arrow's Front of Center percentage from its balance point and total length — the archery-industry-standard measure of arrow balance.
In service MI-11-008Batting Average Calculator
Turn hits and at bats into a batting average, baseball's oldest hitting statistic, expressed the traditional way as a three-decimal figure like .300.
In service MI-11-009Batting Strike Rate Calculator
Convert runs and balls faced into cricket's batting strike rate — runs scored per 100 balls, the pace stat that tells a blocker from a boundary-hitter.
In service MI-11-010Bench Press Calculator - Find Your 1RM
Estimate your bench press one-rep max from a recent set's weight and rep count using the Epley formula, without attempting a risky true single.
In service MI-11-011Bench Press Pyramid Calculator
Turn a one-rep max into a full 5-set ascending or descending bench-press pyramid, with each set's load calculated at 50-90% of 1RM.
In service MI-11-012Bicycle Lubricant Cost-to-Run Calculator
Work out the true cost of your bike chain lube — bottle price divided by applications per bottle, multiplied by how many times you'll actually use it.
In service MI-11-013Bike Cadence and Speed Calculator
Convert pedalling cadence, gear ratio and wheel circumference into your bike's actual road speed — the maths behind every wired cyclocomputer.
In service MI-11-014Bike Cadence Calculator
Count pedal revolutions over a timed interval and convert that straight into cadence in revolutions per minute — no cadence sensor needed.
In service MI-11-015Bike Gear Calculator
Work out gear inches from wheel diameter, chainring and cog teeth — the classic single number for comparing gearing across completely different bikes.
In service MI-11-016Bike Pace Calculator
Convert ride time and distance into cycling pace in minutes per mile — handy for planning route splits and comparing effort across two rides.
In service MI-11-017Bike Size Calculator
Get a recommended road, mountain, or trekking/city bike frame size in centimeters from a single inseam measurement, using the classic Guimard formula.
In service MI-11-018Bike Speed Calculator
Work out average cycling speed in mph from ride distance and time — the headline number most ride computers and post-ride summaries report.
In service MI-11-019Biking Life Gain Calculator
Estimate hours of life gained from a regular biking habit using the widely cited 'roughly an hour gained per hour biked' population health statistic.
In service MI-11-020Bowling Average Calculator
Divide runs conceded by wickets taken to find a bowler's average — the classic cricket stat where, unlike batting average, a lower number is better.
In service MI-11-021Bruce Protocol METs Calculator
Convert your total treadmill time on the standard Bruce protocol into estimated VO2max and METs, using the published Foster et al. regression equations.
In service MI-11-022Burpee Calorie Calculator
Estimate calories burned during a burpee or bodyweight HIIT session from your effort level, body weight, and workout duration.
In service MI-11-023Calories Burned Biking Calculator
Estimate calories burned on a bike ride from your pace bracket, body weight, and ride time, using real Compendium of Physical Activities MET codes.
In service MI-11-024Calories Burned by Heart Rate Calculator
Estimate exercise calories from your average heart rate, sex, weight, and age with the Keytel 2005 regression — a different method from MET-based calculators.
In service MI-11-025Calories Burned Calculator (Track Weight Loss)
Estimate calories burned during any activity from its MET value, your body weight in kilograms, and how long you spent doing it.
In service MI-11-026Calories Burned Standing Calculator
Estimate how many calories standing burns compared with sitting, using your body weight, duration, and real Compendium MET values.
In service MI-11-027Calories Burned Weight Lifting Calculator
Estimate calories burned during a weight-lifting session by intensity — light-to-moderate, vigorous compound lifts, or powerlifting — plus weight and time.
In service MI-11-028Chain Length Calculator
Calculate bicycle chain length in inches and links from chainstay length, largest chainring, and largest cog, using the Sheldon Brown / Park Tool formula.
In service MI-11-029Cricket Follow-On Calculator
Look up the exact run lead a team needs before it may enforce the cricket follow-on, per Law 14.1, across match lengths from one to five days.
In service MI-11-030Cycling Breakaway Calculator
Estimate how many minutes a chasing group takes to close a time gap on a breakaway, from the gap distance and both groups' average speeds.
In service MI-11-031Cycling Heart Rate Zone Calculator
Work out a target heart rate for a chosen cycling intensity using the Karvonen heart-rate-reserve method, built for structured indoor and outdoor rides.
In service MI-11-032Cycling Power Zones Calculator
Turn Functional Threshold Power into all six Coggan training-zone boundaries in watts — the standard power-based zone model used with a power meter.
In service MI-11-033Cycling Wattage Calculator
Estimate your cycling power output in watts from speed, grade, wind, elevation, and riding position, using the standard gravity-rolling-drag physics model.
In service MI-11-035DIY Sports Drink Calculator
Calculate how much table sugar and salt to add to a batch of homemade sports drink, targeting ACSM's published carbohydrate and sodium guidance.
In service MI-11-037Dunk Calculator
Combine standing reach and vertical leap against rim height to see your margin above the rim, and whether you clear it by enough to actually dunk.
In service MI-11-038E-Bike Range Calculator
Estimate how many miles or kilometers your e-bike will travel on a given battery capacity, across efficient, average, and extreme riding scenarios.
In service MI-11-039eFG Calculator
Calculate effective field goal percentage (eFG%), the basketball stat that gives three-pointers their extra credit instead of counting every make the same.
In service MI-11-040Elliptical Calorie Calculator
Estimate calories burned on an elliptical trainer at moderate or vigorous effort, using your body weight and workout duration.
In service MI-11-041Elo Calculator
Enter two ratings, a result, and a K-factor to see the expected score and new rating Arpad Elo's formula gives — the system behind chess and esports rankings.
In service MI-11-042ERA Calculator – Earned Run Average
Turn earned runs and innings pitched into ERA, baseball's pitching stat normalized to a 9-inning game so starters and relievers can be compared fairly.
In service MI-11-043ERG Calculator
Convert a Concept2 indoor-rowing split into watts, using Concept2's own official pace-to-power formula for ergometers.
In service MI-11-044Fat Burning Zone Calculator
Find the 60-70%-of-estimated-max-heart-rate range gyms label the 'fat-burning zone,' plus the research on why harder efforts still burn more total fat.
In service MI-11-045Fielding Percentage Calculator
Combine putouts, assists and errors into fielding percentage, baseball's defensive stat measuring how cleanly a player handles the chances they reach.
In service MI-11-046FIP Calculator (Fielding Independent Pitching)
Calculate FIP from home runs, walks, hit-by-pitches, strikeouts, and innings pitched, using FanGraphs' standard sabermetric formula.
In service MI-11-047Fish Weight Calculator
Estimate a fish's weight from its length and girth measurements, using the standard angler's length-girth formulas for bass, trout, and pike-type species.
In service MI-11-048Fishing Reel Line Capacity Calculator
Estimate how much new-diameter fishing line will fit on a spool, using the standard diameter-squared capacity relationship anglers rely on for line swaps.
In service MI-11-049Football Calorie Calculator (World Cup Edition)
Estimate calories burned playing football at competitive, casual, or walking-football intensity across a match, using Compendium MET values and your weight.
In service MI-11-050GAA Calculator (Goals Against Average)
Calculate a goaltender's goals-against average from goals allowed and minutes played, normalized to a full 60-minute hockey or 90-minute soccer game.
In service MI-11-051Game Score Calculator – Basketball Performance Indicator
Turn a full basketball box score into John Hollinger's Game Score, one number for a player's game, scaled so 10 is average and 40+ is historic.
In service MI-11-052Goalie Save Percentage Calculator
Work out a hockey goaltender's save percentage from saves and goals against — the SV% stat scouts, broadcasts and stat sheets use to compare shot-stopping.
In service MI-11-053Half Marathon Pace Calculator
Convert a half marathon finish time or goal time into pace per mile — the number every training plan and race-day mile split is built around.
In service MI-11-054Heart Rate Calculator
Get your full 5-zone heart-rate training table from age and resting heart rate, using the Karvonen heart-rate-reserve method.
In service MI-11-055Heart Rate Recovery Calculator
Find your one-minute heart-rate recovery — peak heart rate minus heart rate 60 seconds after stopping — a marker linked to cardiovascular fitness.
In service MI-11-056Heart Rate Zone Calculator
Get a low-to-high training heart-rate range from your max pulse, resting pulse and an intensity band, using the Karvonen heart-rate-reserve method.
In service MI-11-057Heptathlon Calculator
Convert performances in all 7 women's heptathlon events into official IAAF/World Athletics points and a total score, using the published scoring-table formulas.
In service MI-11-058Hiking Calculator
Estimate calories burned on a hike from distance, elevation gain, and body/pack weight, using the Minetti (2002) gradient energy-cost-of-transport model.
In service MI-11-059Hiking Time Calculator
Estimate hiking time from trail distance and total elevation gain using Naismith's Rule, the 1892 mountaineering formula still used to plan a day's walk.
In service MI-11-060Hull Speed Calculator
Find a displacement sailboat's theoretical hull speed from its waterline length — the wave-making speed limit racing sailors use to size up a boat's pace.
In service MI-11-061Human Punch Force Calculator
Estimate punch force from effective mass, change in speed and contact time with the target, using F = m x deltaV / deltaT.
In service MI-11-062ICC Calculator
Work out the rating points a team gains or loses from a single T20I result, using the ICC's own gap-based points formula for expected and upset outcomes.
In service MI-11-063Jump Rope Calorie Calculator
Estimate calories burned jump-roping, general freestyle style or on a fixed-cadence machine, using your body weight and workout time.
In service MI-11-064Kiteboarding Calculator
Estimate a starting kite size in square meters from your body weight and the wind speed you're rigging for, using the widely-used J. Douglass formula.
In service MI-11-065Magic Mile Calculator
Turn a single all-out one-mile time trial into predicted 5K, 10K, 10-mile, half-marathon, and marathon times, using Jeff Galloway's Magic Mile method.
In service MI-11-066Magic Number Calculator
Find a leading team's magic number from games remaining and the current lead over 2nd place — the combined wins-and-losses needed to clinch.
In service MI-11-067Marathon Pace Calculator
Turn a marathon finish-time goal into the steady per-mile pace you need to hold across all 26.2 miles, from a BQ attempt to a first-timer's finish.
In service MI-11-068Max Heart Rate Calculator
Estimate maximum heart rate from age alone with the classic 220-minus-age formula, plus the real margin of error worth knowing before you rely on it.
In service MI-11-069MET Minutes Calculator
Add MET-minutes across up to three weekly activities and see where your total lands against standard public-health physical-activity benchmarks.
In service MI-11-070Net Run Rate Calculator
Work out a cricket team's Net Run Rate from runs and overs for and against — the ICC tiebreaker that ranks teams level on points in league play.
In service MI-11-071On Base Percentage Calculator
Calculate a batter's on-base percentage from hits, walks, HBP, at bats and sacrifice flies — the rate stat measuring how often a hitter reaches base.
In service MI-11-072One-Rep Max Calculator
Estimate a one-rep max for any barbell lift from a recent set's weight and reps, using the Epley formula behind percentage-based training programs.
In service MI-11-073OPS Calculator (On-Base Plus Slugging)
Add on-base percentage and slugging percentage to get OPS, the quick-reference baseball stat that combines getting on base with hitting for power.
In service MI-11-074Pace Calculator
Divide any time by any distance to find your pace in minutes per mile — works for a walk, a run, a hike, or any activity you've timed over a known distance.
In service MI-11-075Passer Rating Calculator
Work out the NFL's official passer rating from completions, attempts, yards, touchdowns and interceptions using the four-component, 0-to-158.3 formula.
In service MI-11-076Pool Table Room Size Calculator
Find the minimum room length and width needed to comfortably shoot on a 7, 8, or 9-foot pool table, based on standard cue-clearance rules.
In service MI-11-078Race Predictor – Running Time Calculator
Predict a race finish time at any distance from a recent result at another distance, using Pete Riegel's 1.06-exponent endurance formula.
In service MI-11-079Race Time Improvement Calculator
Compare an old race time against a new one and see the percentage improvement — a single number to track progress across training cycles.
In service MI-11-080Running Calorie Calculator
Estimate calories burned running at your pace, from an easy self-selected jog to a 10 mph sprint pace, using your weight and time.
In service MI-11-081Running Pace Calculator
Log a run's time and distance in kilometres and read today's pace in minutes per km — the entry you'd write straight into a training log.
In service MI-11-082Running Split Calculator
Turn one segment's time and distance into that segment's pace — built for checking a single lap, mile split, or interval against the rest of your effort.
In service MI-11-083Sauna Calories Burned Calculator
Estimate calories burned during a sauna session and its tiny equivalent in body fat, from session length and an adjustable burn-rate assumption.
In service MI-11-085Scuba Weight Calculator
Estimate a rough starting scuba weight-belt amount from body weight, wetsuit thickness, and water type — a planning figure, not a buoyancy-check substitute.
In service MI-11-086Ski Size Calculator
Get a recommended ski length from your height, ability level, and skiing style — a height-and-ability starting point rather than a full weight-adjusted fitting.
In service MI-11-087Slugging Percentage Calculator
Work out a batter's slugging percentage from total bases and at bats — the rate stat that measures raw power by weighting extra-base hits over singles.
In service MI-11-088Snow Shoveling Calories Burned Calculator
Estimate calories burned clearing snow by hand, moderate to vigorous effort, using the 2024 Compendium's MET values, your body weight, and minutes shoveled.
In service MI-11-089Stairs Calorie Calculator
Find calories burned climbing stairs at a slow, general, or fast pace, one or two steps at a time, using the 2024 Compendium's MET values and weight.
In service MI-11-090Steps to Calories Calculator
Convert a step count into distance walked and calories burned, using your height to estimate stride length and the standard ACSM MET-based calorie formula.
In service MI-11-091Steps to km Calculator
Convert a step count into kilometres using your own stride length, for a more accurate distance than a generic per-step assumption gives.
In service MI-11-092Steps to Miles Calculator
Convert a step count into miles using your own stride length in feet and the exact 5,280-foot statute mile, instead of a rough steps-per-mile guess.
In service MI-11-093Stride Length Calculator
Estimate your stride length from height and sex, or calculate it directly from a measured walk — useful for calibrating a pedometer or fitness tracker.
In service MI-11-094Swim Time Converter
Turn a per-100m swim pace and a target distance into the total swim time — plan a pool workout or estimate the swim leg of a triathlon.
In service MI-11-095Swimming Calorie Calculator
Calculate calories burned swimming freestyle, backstroke, breaststroke, or butterfly at recreational or training effort, using Compendium MET values.
In service MI-11-096Target Heart Rate Calculator
Get one target heart rate in bpm for a workout from max pulse, resting pulse and an effort percentage, using the Karvonen heart-rate-reserve formula.
In service MI-11-097Tennis Ball Usage Calculator
Estimate how many tennis balls and cans you'll need for a tournament or club event, based on match count, games per match, and the standard ball-change rule.
In service MI-11-098Training Pace Calculator
Derive your VDOT running-fitness score and five Daniels-method training paces — easy through repetition — from a single recent race result.
In service MI-11-099Triathlon Heart Rate Training Zones Calculator
Build a full 5-zone Karvonen heart-rate-reserve training table from your max and resting heart rate — one calculation, five zones for swim, bike, and run.
In service MI-11-100Triathlon Nutrition Calculator
Add up swim, T1, bike, T2, and run into one total triathlon time — plan a race-day goal or check a finished race's official time by hand.
In service MI-11-102TS Calculator (True Shooting Percentage)
Calculate a basketball player's true shooting percentage from points, field-goal and free-throw attempts — the efficiency stat combining every shot type.
In service MI-11-103VO2 Max Calculator – Aerobic Capacity
Convert the distance covered in a 12-minute run into an estimated VO2 max, using Kenneth Cooper's original 1968 field-test formula.
In service MI-11-104VO2 Max Runners Calculator
Turn any race distance and finish time into an estimated VO2 using the Daniels-Gilbert formula — built from an actual race, not a fixed test.
In service MI-11-105Walking Calorie Calculator
Estimate calories burned walking, from a slow stroll to a fast 5+ mph pace, using the 2024 Compendium's eight walking-speed MET codes and your weight.
In service MI-11-106WAR Calculator (Wins Above Replacement)
Combine batting, base-running, fielding, positional, and league runs into a single WAR figure, using FanGraphs' published position-player formula.
In service MI-11-107Weight Loss Calculator
Estimate how many weeks of exercise alone it takes to reach a weight-loss goal, using the MET calorie-burn formula and the standard 7700-kcal-per-kg rule.
In service MI-11-108WHIP Calculator for Baseball
Calculate a pitcher's WHIP from walks, hits allowed and innings pitched — the baseball stat that measures how many baserunners a pitcher allows per inning.
In service MI-11-109Wilks Calculator
Turn bodyweight and total lifted into a Wilks score — the classic bodyweight-adjusted formula for comparing raw strength across weight classes.
In service MI-11-110Windsurfing Calculator
Estimate a starting windsurfing sail size in square meters from rider weight and wind speed, using a community-standard sail-sizing formula.
In service MI-11-111Winning Percentage Calculator
Calculate a team's winning percentage from wins and losses — the standings figure used across baseball, football, basketball, hockey and beyond.
In serviceOn the Board
7 catalogued · not yet builtThese sheets are numbered and queued. They are listed for transparency about what this series will contain — they are not links yet, because nothing here ships before its formula is verified twice.
- MI-11-003 Age Grade Calculator
- MI-11-007 Average Triathlon Finishing Time Calculator
- MI-11-034 DIN Calculator - How to Adjust Ski Bindings?
- MI-11-036 Duckworth Lewis Calculator
- MI-11-077 Quiz: Dunk Calculator
- MI-11-084 Save Percentage Calculator
- MI-11-101 Triathlon Training Calculator