Gear Tools
Data-driven calculators for runners, cyclists, golfers, gym athletes, and more. No login required.
Open the calculator that matches the question
Jump into the tools most likely to turn body, fit, distance, or surface inputs into a useful gear decision.
Turn inputs into a gear shortlist
Start with the question, add fit data, compare the result, then jump back to a guide or deal path.
New Tools
Recently AddedBasketball Size Finder
Match ball size and cover material to age, league context, hand size, and court surface before you buy.
Golf Handicap Estimator
Calculate your USGA Handicap Index from recent scores and get equipment upgrade recommendations for your level.
Golf Club Distance Calculator
Enter your driver distance to calculate expected yardages for all 14 clubs and identify gaps in your set.
Backpacking Base Weight Calculator
Enter your gear list, calculate base weight, and find out if you are ultralight, lightweight, or traditional.
Bat Swing Speed & Exit Velocity Calculator
Soccer Cleat Fit Calculator
Hiking Pack Size Calculator
Swim Pace Calculator
String Tension Calculator
Paddle Selector
Snowboard Size Calculator
Ski Length Calculator
Popular Tools
Most UsedRunning Pace Calculator
Convert between pace, speed, and race finish times. Works for 5K, 10K, half, and full marathon.
VO2 Max Estimator
Estimate your aerobic capacity using field test data. Based on validated Cooper test protocols.
Golf Handicap Calculator
Calculate your World Handicap System index from your recent scorecards. Updated WHS formula.
FTP Calculator
Find your Functional Threshold Power from a 20-minute or ramp test and set your training zones.
1-Rep Max Calculator
Estimate your max strength from reps-at-weight using the Brzycki, Epley, or Lombardi formulas.
BMI Calculator
Calculate body mass index with context — including limitations and better alternatives for athletes.
Running & Endurance
Category 01Running Pace Calculator
Pace ↔ speed ↔ finish time across all race distances.
VO2 Max Estimator
Estimate aerobic capacity from field test data.
Race Time Predictor
Predict finish time at a new distance from a known result.
Running Shoe Finder
Match shoe type to gait, terrain, and training load.
Swim Pace Calculator
Convert swim pace per 100m to projected race times.
Calorie Burn Calculator
Estimate calories burned for running, cycling, and more.
Cycling
Category 02FTP Calculator
Functional Threshold Power from 20-min or ramp test data.
Power-to-Weight Ratio
Calculate your W/kg and understand where you sit vs. categories.
Gear Ratio Calculator
Calculate speed at cadence across all chainring/cog combinations.
Bike Frame Size Calculator
Find the right road or mountain bike frame size from your measurements.
Cycling Calorie & Nutrition Calculator
Calories burned, on-bike carb targets, hydration needs, and post-ride protein.
Golf
Category 03Golf Handicap Calculator
WHS handicap index from your recent scorecards.
Shaft Flex Selector
Match shaft flex to swing speed for optimal launch conditions.
Club Distance Calculator
Estimate carry and total distances for each club in your bag.
Driver Loft Optimizer
Find the ideal driver loft for your swing speed and attack angle.
Gym & Fitness
Category 041-Rep Max Calculator
Estimate your max from any rep count using multiple formulas.
BMI Calculator
BMI with real context for athletes — and better metrics to track.
Calorie Burn Calculator
Calories burned across 30+ sports and activities.
Home Gym Budget Planner
Build your ideal home gym within any budget with a prioritized equipment list.
Snow Sports
Category 05Ski Length Calculator
Right ski length based on height, weight, ability, and terrain preference.
Snowboard Size Calculator
Ideal board length and width for your body and riding style.
Lacrosse Helmet Rating Lookup
Virginia Tech STAR ratings for popular lacrosse helmets — buy or avoid?
Snowboard Profile Selector
4 questions to find your ideal rocker, camber, flat, or hybrid profile.
Avalanche Safety Checklist
Personalized gear checklist for resort, sidecountry, and backcountry trips.
Racket Sports
Category 06String Tension Calculator
Optimal string tension based on racket specs, string type, and play style.
Pickleball Paddle Selector
Find the right paddle weight, grip, and core for your game.
Tennis Racket Finder Quiz
Find your ideal racket specs from playing level, style, and arm sensitivity.
Shoe Rotation Planner
Build your ideal shoe rotation from weekly mileage, race goal, and surface mix.
Ski Boot Flex Calculator
Find your ideal ski boot flex from skill level, weight, style, and age.
Golf Ball Selector Quiz
Find your ideal golf ball from swing speed, handicap, priority, and budget.
Tools that connect to live gear picks
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Sources & Further Reading
Reviewed May 29, 2026. This tools hub is maintained against current rules, public health references, and fit guidance used across the individual calculators.