Running Calculators & Tools
Free interactive tools to help you plan your training, predict race times, and optimize your performance.
How to Use These Tools
Pace Calculator
Use before races to determine your goal pace, or during training to calculate split times. Switch between calculating pace, time, or distance.
Race Predictor
Enter a recent race result to predict times for other distances. Use the training recommendations to optimize your workouts.
Hydration Calculator
Plan your fluid intake for training runs and races. Adjust for weather conditions and sweat rate to prevent dehydration.
Pace Calculator
Calculate your running pace, finish time, or distance. Perfect for planning your race strategy or setting training goals.
Pace Calculator
Tips:
- Use this calculator to plan your race strategy
- Practice your goal pace during training runs
- Remember to account for hills and weather conditions
Race Time Predictor
Predict your race times for different distances based on a recent race performance. Get personalized training pace recommendations.
Race Time Predictor
Based on your recent race performance, predict your finish times for other distances using proven formulas.
Note: These predictions assume consistent training and similar race conditions. Factors like weather, elevation, and fitness can significantly affect actual performance.
Hydration Calculator
Calculate your hydration needs based on run duration, weather conditions, and personal factors.
Hydration Calculator
Looking for more training resources? Check out our training plans and running articles.