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Sports

Race prediction, swimming, cycling power and training load.

11 calculators

Race Time Predictor

Predict your finish time at any distance based on a known race time using Riegel's formula.

Calculate watts per kilogram, FTP zones, and performance classification.

Calculate swim pace per 100m, 100 yards, and total time for any distance.

Estimate calories burned during common exercises based on weight and duration.

Track acute vs. chronic training load ratio and injury risk (ATL/CTL/TSB).

Calculate your World Handicap Index (WHI) from recent round scores.

Estimate your natural athletic ceiling using science-based benchmarks (strength, speed, size).

Calculate carbohydrate, protein, and hydration needs for training and race day.

Calculate PER, true shooting %, effective FG%, and other advanced basketball metrics.

Estimate xG for a shot based on location, type, and assist type.

Calculate vertical jump height, power output, and athleticism rating from jump tests.