For swimmers logging training and prepping for meets
Swim training plan toolkit
Swim training is measured in seconds and centimeters, and the difference between a hard workout and the right workout is usually one of these numbers. Pace per 100, distance-per-stroke, LCM/SCY conversions before a meet, calorie burn for the day's intake — all here, all consistent across the set.
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Swimming Pace Calculator
The training-plan anchor. Pace per 100 (yards or meters) sets the intensity zones every other set builds against.
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Swimming Stroke Rate Calculator
Rate + distance-per-stroke together diagnose whether you're short-stroking (rate too high, DPS collapsing) or gliding too much (rate too low, drag winning).
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Swimming Training Zone Calculator
Threshold, endurance, sprint, VO2 max — the 5-zone framework so a "hard set" and an "easy set" mean the same thing week to week.
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Swimming Time Conversion Calculator
Long-course meters to short-course yards conversion before an out-of-configuration meet. USA Swimming factors per stroke and distance.
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Swimming Calories Burned Calculator
Fuel the training. Under-eating for volume shows up as chronic sluggishness in the 4th week of a build cycle.
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Save your progress
Each calculator remembers your last inputs on your device, so you can leave and come back to any of these without losing your numbers. Every step also has a Share this calculation button that copies a link with your inputs baked in — useful for talking things through with a partner or advisor.