Fitness & Sports
208 tools · page 3 of 4
- Gear Inches Calculator Compute bicycle gear inches from chainring, cog and wheel diameter, plus development per pedal stroke.
- Grade-Adjusted Pace Calculator Estimate your grade-adjusted running pace on hills from your flat pace and the gradient.
- Heat Index Pace Adjustment Calculator Convert temperature and humidity into a heat index and see how much slower your running pace and finish time will be in the heat.
- IPF GL Points Calculator Score a raw powerlifting total with the official IPF GL (Goodlift) formula.
- Ironman Pace Calculator Estimate your full-distance Ironman finish time from swim, bike and run paces.
- Lactate Threshold Heart Rate Calculator Calculate your lactate threshold heart rate (LTHR) from a 30-minute time trial, a 60-minute race or your max HR, with Friel's five LTHR zones.
- Long Run Distance Calculator Set your long-run distance as a share of weekly mileage (typically 30%).
- Marathon Pace Calculator Turn a goal marathon time into the required pace per kilometer and per mile.
- Maximum Heart Rate (Gulati) Calculator Estimate maximum heart rate with the Gulati formula (206 − 0.88 × age) for women.
- Nitrox MOD Calculator Calculates the maximum operating depth (MOD) of a nitrox mix from its oxygen percentage and chosen maximum oxygen partial pressure.
- One Rep Max (Brzycki) Calculator Estimate your one-rep max from weight and reps using the Brzycki formula.
- One-Rep Max (Average) Calculator Estimate your one-rep max as the average of the Epley, Brzycki, Lombardi and Lander formulas.
- Open Water Swim Pace Calculator Adjust your pool pace for open water conditions and estimate total swim time.
- Pace per Kilometer Calculator Convert a run time and distance into pace per kilometer (min:sec) and speed in km/h.
- Percent of 1RM Calculator Calculate the training load for a chosen percentage of your one-rep max.
- Pool Length Conversion Calculator Convert a swim time between short-course and long-course pools using the turn-value method.
- Power-to-Bodyweight Lift Ratio Calculator Calculate a lift's mechanical power in watts per kilogram of bodyweight.
- Progressive Overload Planner Calculator Project your working load after weekly percentage increases.
- Purdy Points Running Calculator Score a running performance in Purdy points (Gardner & Purdy tables), with the standard time, percentage of standard and equivalent 5 km time.
- Race Splits Calculator Work out your pace per unit, time per split, split count and average speed for a target race time.
- Race Weight Calculator Find your optimal race weight from your current weight, body fat percentage and target race-day body fat, plus the time it could save you.
- Reactive Strength Index Calculator Computes the Reactive Strength Index (RSI), jump height divided by ground contact time, a key plyometric performance metric.
- Relative Peak Power (W/kg) Calculator Divide peak power by body weight to get watts per kilogram (W/kg).
- Relative Strength Calculator Divide your best lift by your body weight to get your relative strength ratio.
- Rep Max Conversion Calculator Convert a known rep max to the weight you can lift for a different number of reps.
- Reps From Percentage Calculator Find the weight for a percentage of your 1RM and the reps you can expect to perform.
- Reps in Reserve Calculator Estimate your one-rep max from the weight, reps and RIR of a set.
- Rest Interval Recommendation Calculator Get the recommended rest time between sets based on your training goal.
- Rowing 500 m Split Calculator Convert your rowing distance and time into a 500 m split, watts and speed.
- Rowing Calorie Calculator Estimate calories burned rowing from power output.
- Rowing Distance from Time Calculator Calculate total meters from your 500m split and workout duration.
- Rowing Pace Converter Convert a 500 m rowing split into watts and speed.
- Rowing Split from Watts Calculator Convert a target power (watts) into the equivalent 500m split time.
- Rowing Stroke Rate Calculator Calculate your target stroke rate and 500 m split from distance, time and distance per stroke.
- RPE to Percentage Calculator Convert an RPE and rep count into the percentage of your 1RM you are lifting.
- Running Cadence Calculator Calculates your running cadence in steps per minute from your speed and stride length.
- Running Economy Calculator Estimate running economy — the oxygen cost of covering a given distance — from your VO2 and running speed.
- Running Power Estimate Calculator Estimate running power in watts and watts per kilogram from weight, speed, gradient and headwind, split into flat, climbing and air-resistance power.
- Schwartz Formula Calculator Score a powerlifting total against body weight using the classic Schwartz formula.
- Scuba Surface Air Consumption Calculator Calculates a diver's Surface Air Consumption (SAC) rate in psi/min from gas used, dive time and average depth, normalizing to surface pressure using ATA = depth/33 + 1.
- Scuba Weight Calculator Estimates the lead weight a scuba diver needs based on body weight, water type, and wetsuit thickness.
- Set Rest-Pause Volume Calculator Calculate the total number of reps you complete in a rest-pause set from your first set and each pause burst.
- Ski Length Calculator Find the right ski length from your height and skill level.
- Skill Rating From Wins Calculator Estimates an Elo-style skill rating from a win/loss record using rating = base + 400·log10(wins/losses), with a small floor to handle zero counts.
- Speed to Pace Calculator Converts running speed in km/h into pace per kilometre and per mile.
- Sprint Acceleration Calculator From a standing start, compute average acceleration and final speed from distance and time.
- Sprint Speed Calculator Calculate sprint speed in m/s, km/h and mph from distance and time.
- Sprint Triathlon Pace Calculator Estimate your total sprint triathlon finish time from swim, bike and run paces.
- Squat from Deadlift Estimator Estimate a squat 1RM from your deadlift 1RM.
- Step Test Fitness Score Calculator Calculate your Harvard Step Test Physical Efficiency Index from recovery pulse counts.
- Steps per Mile Calculator Estimate how many steps cover a mile from your height (stride ≈ 0.413 × height).
- Stride Length Calculator Estimate your stride length from height, plus steps needed per kilometer.
- Swim Interval Pace Calculator Calculate the send-off interval and total set time for a swim workout from swim time, rest and reps.
- Swim Threshold Pace Calculator Convert a test-set distance and time into threshold pace per 100 m and speed.
- Swim Time from Pace Calculator Calculate total swim time for a distance from your pace per 100m.
- Swimming Calories Burned Calculator Estimates the calories you burn swimming by stroke, based on weight and time using MET values.
- SWOLF Score Calculator Swim efficiency score from strokes plus seconds for a pool length.
- Taper Mileage Calculator Reduce peak weekly mileage for race week by your chosen taper percentage.
- Target Heart Rate Percentage Calculator Calculates your target heart rate as a chosen percentage of your age-based maximum heart rate.
- Tennis Match Stats Calculator Calculate your total-points-won percentage from the points you won and lost in a tennis match.