Running & Endurance Calculators
Explore 39 professional-grade calculators for running & endurance.
Running Calorie Calculator
Calculate calories burned while running based on distance and pace.
Walking Calorie Calculator
Estimate calories burned during your walk based on weight and speed.
Pace Converter
Convert between running times, distances, paces, and speeds.
Running Pace Calculator
Calculate required pace to hit a target race time for any distance.
VDOT Running Calculator
Find your VDOT score and optimal training intensities based on race performance.
Running Cadence Calculator
Calculate your steps per minute (SPM) based on steps and duration.
Running Stride Length Calculator
Calculate average stride length from distance and step count.
Race Time Predictor
Estimate your finish time for 5K, 10K, half, and full marathons from current times.
Treadmill Pace Converter
Convert between treadmill mph/kph and running pace per mile/km.
Race Finish Time Predictor
Calculate race finish time predictor online with our free tool.
Marathon Qualifying Time Calculator
Calculate marathon qualifying time calculator online with our free tool.
Ultramarathon Pace Calculator
Calculate ultramarathon pace calculator online with our free tool.
Sprint Speed Calculator
Calculate sprint speed calculator online with our free tool.
5K Time Predictor
Calculate 5k time predictor online with our free tool.
Running Training Load Calculator
Calculate running training load calculator online with our free tool.
Altitude-Adjusted Running Pace Calculator
Calculate altitude-adjusted running pace calculator online with our free tool.
Running Economy Score Calculator
Calculate running economy score calculator online with our free tool.
Detraining Rate Calculator
Calculate detraining rate calculator online with our free tool.
Yasso 800s Predictor
Calculate yasso 800s predictor online with our free tool.
Age Grade Performance Calculator
Calculate age grade performance calculator online with our free tool.
Elevation Grade Pace Effect Calculator
Calculate elevation grade pace effect calculator online with our free tool.
Treadmill Grade Pace Calculator
Calculate treadmill grade pace calculator online with our free tool.
Half Marathon Time Predictor
Calculate half marathon time predictor online with our free tool.
Heat-Adjusted Running Pace Calculator
Calculate heat-adjusted running pace calculator online with our free tool.
Threshold Pace Calculator
Calculate threshold pace calculator online with our free tool.
Run Walk Interval Calculator
Calculate run walk interval calculator online with our free tool.
Running Shoe Mileage Calculator
Calculate running shoe mileage calculator online with our free tool.
Marathon Negative Split Calculator
Calculate marathon negative split calculator online with our free tool.
Jack Daniels Pace Calculator
Calculate jack daniels pace calculator online with our free tool.
Race Equivalent Time Calculator
Calculate race equivalent time calculator online with our free tool.
Trail Running Pace Adjustment Calculator
Calculate trail running pace adjustment calculator online with our free tool.
10K Time Predictor
Calculate 10k time predictor online with our free tool.
Easy Run Pace Calculator
Calculate easy run pace calculator online with our free tool.
Interval Pace Calculator
Calculate interval pace calculator online with our free tool.
Long Run Pace Calculator
Calculate long run pace calculator online with our free tool.
Race Day Temperature Correction Calculator
Calculate race day temperature correction calculator online with our free tool.
Running Power Calculator
Calculate running power calculator online with our free tool.
Taper Week Calculator
Calculate taper week calculator online with our free tool.
Triathlon Time Predictor
Estimate your total triathlon finish time based on individual leg paces and transition times.