Running calculators
11 calculators Pace Calculator Find your running pace, finish time, or distance from any two values. Get splits, race finish times, and speed in both metric and imperial units.
Open Running Pace Calculator Calculate running pace, finish time, or distance from any two known values. Get splits, race projections, training zones, and speed in km/h and mph.
Open Marathon Pace Calculator Calculate your marathon pace, projected finish time, and per-km or per-mile splits. Supports even, negative, and positive split strategies with a full 5 km breakdown.
Open Race Predictor - Running Time Calculator Predict your finish time for any race distance from a recent performance. Uses the Riegel formula with pace breakdowns for 5K, 10K, half marathon and marathon.
Open Race Time Improvement Calculator Calculate your projected race finish time from a percentage improvement target or predict cross-distance performance with the Riegel formula. Free, instant, with splits.
Open Running Split Calculator Calculate even or negative splits for any race. Enter distance, finish time, and split interval to get lap times, cumulative splits, pace per km and per mile.
Open Steps to km Calculator Convert steps to kilometres using average stride, height-based estimation, or your own stride length. Includes calorie burn and a steps-per-km reference table.
Open Steps to Miles Calculator Convert steps to miles using your sex, height, and walking pace. Get distance in miles or km, stride length, calories burned, and a steps-per-mile chart.
Open Stride Length Calculator: Running and Walking Calculate your stride length from your height or from measured distance and steps. Get steps per mile, steps per km, and cadence. Metric and imperial.
Open Training Pace Calculator Enter any recent race result to get your personalised Easy, Marathon, Threshold, Interval and Repetition training paces in metric or imperial units.
Open VO2 Max Runners Calculator Estimate your VO2 max from any race result using Jack Daniels' formula. Get your fitness rating, training paces, and race time predictions instantly.
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