Free calculator
VDOT calculator
Enter a recent race. Get your VDOT and the five training paces that follow from it.
What VDOT is
VDOT is a single fitness number from Jack Daniels and Jimmy Gilbert, worked out from a race result. Training paces are fixed fractions of it: easy, marathon, threshold, interval and repetition. These are the same formulas the plan generator uses. See the methodology for the details.