Optimize your running performance with our range of calculators designed to help you train smarter and run better.
Calculate pace, distance, and time for your ultramarathon.
Ultramarathon Pace CalculatorFigure out how much and what to eat during your trail race.
Running Snack CalculatorSee how your training intensity will affect your next race time.
Race Improvement CalculatorFind the right training paces and workouts to achieve your goal time.
Training Paces CalculatorGet your fueling strategy right by estimating how much you're burning.
Run Calorie CalculatorRacing above 30? See how your performance would've ranked in your prime.
Age Grade CalculatorOur calculators are designed to help you optimize your training and race performance. Here's a brief guide on how to use them:
For the best results, we recommend using the calculators in the following order:
Disclaimer: The tools and calculators provided on this page are formulated with the best intentions and are based on widely accepted training principles. However, there may still be slight miscalculations. Please use the tools as a guideline and adjust them according to your personal needs and conditions. If you encounter any bugs or have any questions, please send a note to [email protected], and I will address them as soon as possible.