Pace Tools

Three interactive running pace calculators: (1) Pace Converter - converts between pace (min:sec per km), speed (km/h), pace per mile, and calculates race times for standard distances (5km, 10km, half marathon, marathon) with preset pace buttons. (2) Race Predictor using Riegel formula (exponent 1.06) - predicts race times at different distances based on a known race result, useful for training plan target times. (3) Split Generator - calculates km-by-km splits for a goal time with three pacing options: even pace, negative splits (1% or 2% faster second half). All time inputs accept h:mm:ss or mm:ss format. Responsive design with light and dark mode support.