Marathon Training Calculator
Calculate weekly mileage progression and training paces based on your goal marathon time
About this calculator
The Marathon Training Calculator helps runners create a personalized training plan by calculating optimal weekly mileage progression and training paces based on your target marathon finish time. This tool takes the guesswork out of marathon preparation by providing scientifically-backed pace recommendations for easy runs, tempo runs, intervals, and long runs. Whether you're a first-time marathoner or seeking a personal record, this calculator ensures your training intensities align with your goal time, reducing injury risk while maximizing performance gains.
How to use
Enter your goal marathon finish time in hours and minutes, then input your current weekly mileage base. The calculator will generate a progressive training schedule showing recommended weekly mileage increases and specific pace targets for different workout types. Use these paces during your training runs to build the fitness needed for your target marathon time.
Frequently asked questions
How accurate are the calculated training paces?
Training paces are based on proven formulas used by elite coaches and are highly accurate for most runners when goal times are realistic.
Can beginners use this marathon training calculator?
Yes, but beginners should ensure their goal time is realistic and consider consulting a coach for their first marathon training plan.
How often should I update my training paces?
Reassess your paces every 4-6 weeks based on recent race performances or time trials to ensure continued progress toward your goal.