Running Calculators
Free running calculators for pace, race times, calories burned, and training metrics. Find your ideal pace, predict finish times, and track your progress.
Pace & Race Time Calculators
Calculate your running pace, predict race times, and find the perfect pace for any distance. Whether you're training for a 5K or a marathon, these tools help you set realistic goals based on your current fitness.
Running Pace Calculator
Our easy-to-use running pace calculator helps you estimate your pace based on your training and fitness level.
Running Time Calculator
Our easy-to-use running time calculator helps you estimate your time based on your pace and distance.
Ideal Running Cadence Calculator
Calculate your optimal running cadence (steps per minute) based on your pace, height, and leg length. Get personalized recommendations for performance and injury prevention.
Running Heat Calculator
Calculate heat-adjusted running pace using the Mantzios research model. Account for temperature, humidity, heat index, and acclimation to predict performance impact in hot weather.
Running Humidity Calculator
Calculate humidity-adjusted running pace using dew point. Understand how muggy conditions affect your performance with research-backed pace adjustments for races and training.
Altitude Running Calculator
Convert running pace between altitudes using VO2max reduction models. Understand how elevation affects your performance with adjustments for acclimation, event type, and altitude native status.
5K Pace Calculator
Our easy-to-use 5K pace calculator helps you estimate your pace based on your training and fitness level.
10K Pace Calculator
Calculate the pace you need to run a 10K based on your goal time.
Half Marathon Pace Calculator
Calculate the pace you need to run a half marathon based on your goal time.
Marathon Pace Calculator
Calculate the pace you need to run a marathon based on your goal time.
Pace to 5K Time Calculator
Calculate your 5K time based on your 5K pace.
Pace to 10K Time Calculator
Calculate your 10K time based on your 10K pace.
Pace to Half Marathon Time Calculator
Calculate your half marathon time based on your half marathon pace.
Pace to Marathon Time Calculator
Calculate your marathon time based on your marathon pace.
Running Interval Pace Calculator
Calculate your optimal interval training paces based on recent race performance. Get target paces for Easy, Marathon, Threshold, VO2max, and Repetition workouts using the physiological velocity model.
VO2 Max Calculator Running
Calculate your VO2 max based on your running distance and time.
Calories & Weight Loss Calculators
Track calories burned during your runs with precision. From quick 10-minute sessions to marathon distances, calculate your energy expenditure based on your pace, weight, and duration.
Running Calorie Calculator
Calculate calories burned during your run based on distance, time, and weight.
10 Minute Run Calorie Calculator
Calculate calories burned during a 10-minute run.
20 Minute Run Calorie Calculator
Calculate calories burned during a 20-minute run.
30 Minute Run Calorie Calculator
Calculate calories burned during a 30-minute run.
45 Minute Run Calorie Calculator
Calculate calories burned during a 45-minute run.
1 Hour Run Calorie Calculator
Calculate calories burned during a one-hour run.
1 Mile Run Calorie Calculator
Calculate calories burned during a one-mile run.
2 Mile Run Calorie Calculator
Calculate calories burned during a two-mile run.
3 Mile Run Calorie Calculator
Calculate calories burned during a three-mile run.
5 Mile Run Calorie Calculator
Calculate calories burned during a five-mile run.
10 Mile Run Calorie Calculator
Calculate calories burned during a ten-mile run.
3 KM Run Calorie Calculator
Calculate calories burned during a 3 kilometer run.
5 KM Run Calorie Calculator
Calculate calories burned during a 5 kilometer run.
10 KM Run Calorie Calculator
Calculate calories burned during a 10 kilometer run.
Half Marathon Run Calorie Calculator
Calculate calories burned during a half marathon run (21.1 km).
Marathon Run Calorie Calculator
Calculate calories burned during a marathon run (42.2 km).
Performance Metrics Calculators
Measure your running fitness with advanced metrics. Estimate your VO2max from race results, calculate training stress scores, and determine optimal training paces for different workout intensities.
Jack Daniels Running Calculator
Calculate your VDOT score using the Jack Daniels formula calculator. Get equivalent race predictions and personalized training paces for Easy, Marathon, Threshold, Interval, and Repetition zones.
VDOT Running Calculator
Calculate your VDOT score from any race result. Get accurate race time predictions and personalized training paces for all five training zones using the proven Daniels-Gilbert formula.
VO2 Max Calculator Running
Calculate your VO2 max based on your running distance and time.
Running Training Stress Score (TSS)
Calculate your TSS based on your heart rate and duration.
Running Interval Pace Calculator
Calculate your optimal interval training paces based on recent race performance. Get target paces for Easy, Marathon, Threshold, VO2max, and Repetition workouts using the physiological velocity model.
Other Running-Related Sports
Calculate calories burned in sports that involve running and similar movement patterns. Track your energy expenditure for basketball games, rucking sessions, and more.
About Our Running Calculators
Our collection of running calculators helps athletes of all levels track their performance, set realistic goals, and optimize their training. Whether you're a beginner looking to complete your first 5K or an experienced marathoner aiming for a personal best, these free tools provide the insights you need.
All calculators use scientifically validated formulas and are designed to be easy to use on any device. Simply enter your data and get instant results that you can use to plan your training and track your progress.