A VDOT calculator estimates your current running fitness from a recent race result and turns it into training paces. VDOT is a performance-based measure created by running coach Jack Daniels, and it’s widely used to plan workouts at the right intensity, from easy runs to fast repetitions.
Here’s how it works. You enter a race distance and time, such as a 5K in 24:00. The calculator uses Daniels’s formulas to assign a VDOT value, then predicts equivalent times for other distances and recommends paces for each training zone: easy (E) for aerobic base, marathon (M), threshold (T) for comfortably hard tempo runs, interval (I) for hard efforts that build aerobic capacity, and repetition (R) for speed and running economy.
Example: a runner with a 5K time of 24:00 might be told to run easy runs well slower than race pace, threshold runs at a pace they could hold for about an hour, and intervals at roughly their current 5K pace or slightly faster. The exact paces come from the calculator’s tables.
Tips: use a recent, all-out race for the most accurate number, update your VDOT every few weeks as fitness improves, and adjust paces for heat, hills and altitude. Most of your weekly mileage should be easy, with harder sessions limited to a few per week. VDOT estimates are guides, not guarantees.
Tips for getting accurate results from the VDOT Calculator: double-check that every input uses the right units, enter numbers without commas or symbols, and run the calculation a second time with a quick estimate in your head to confirm the answer looks reasonable.
How to use the VDOT Calculator on Minedit: enter your values in the fields, press calculate, and review the step-by-step breakdown under the result. If something looks off, change one input at a time to see how it affects the answer, which is also a great way to learn the math behind it.
Learn more about the coach behind VDOT on Jack Daniels’s Wikipedia page. Find 5K pace and VO2 max calculators on Minedit.