Swimming Calculators
Complete suite of free tools to analyze your swimming performance, optimize training, and track progress.
Swim Pace Calculator
Calculate your swim pace per 100m/yd, total time, or distance. The essential tool for every swimmer.
SWOLF Score Calculator
Calculate your swimming efficiency score by combining strokes per length and time. Lower is better.
Triathlon Pace Calculator
Plan your race pace for Sprint, Olympic, 70.3, and Ironman distances. Set targets for your next triathlon.
Swimming Stroke Rate
Measure your stroke cadence to find the sweet spot between power and efficiency.
Pool Workout Calculator
Structure your swim sessions with precise intervals, rest times, and total volume tracking.
Swimming Calorie
Estimate calories burned based on stroke style, duration, intensity, and body weight.
Open Water Swim
Adjust your pool pace for open water conditions. Account for sighting, currents, and wetsuits.
Split Time Calculator
Analyze your race splits to detect pacing issues and improve your finishing speed.
Swim Training Zones
Define your Aerobic, Threshold, and VO2 Max zones to train with scientific precision.
Pool Volume Calculator
Calculate the water volume of any swimming pool shape for maintenance or chemical dosing.
Medley Relay Calculator
Optimize relay team order and estimate total time based on individual swimmer splits.
Hydration Calculator
Estimate fluid loss during swimming to prevent dehydration and maintain performance.
Swim Time Converter
Convert times between Short Course (Yards/Meters) and Long Course Meters with standard conversions.
Critical Swim Speed
Find your CSS pace (aerobic threshold) using the 400m/200m test. Your key metric for endurance.
Swimming Distance Converter
Quickly convert between meters, yards, lengths, and miles. Perfect for logbook entries.