Running
Pace, finish time, splits, calories, VO2 max and race prediction calculators
Running Pace Calculator
Calculate running pace, finish time or distance from any two inputs, with min/km, min/mile, km/h and mph conversions for race planning and treadmill workouts.
Race Finish Time Calculator
Estimate 5K, 10K, half marathon, marathon or custom-distance finish time from a target pace or an in-race checkpoint.
Running Splits Calculator
Build a race split table or pace band from distance and goal time, with even, negative-split and positive-split pacing strategies.
Running Calorie Calculator
Estimate calories burned while running from body weight, distance, pace or time, speed and average grade, with MET and kcal-per-kilometer outputs.
VO2 Max Calculator
Estimate VO2 max from a Cooper 12-minute run, a 1.5-mile run, or a recent race result, with age and sex reference bands for context.
Race Time Predictor Calculator
Predict equivalent race times for 1K, 5K, 10K, half marathon and marathon from a recent result using the Riegel formula and a fatigue exponent.
VDOT Calculator
Calculate a Daniels-style VDOT score from a recent race result or enter VDOT directly to get equivalent race times and training paces.