Pace Calculator

VDOT race prediction, pace↔speed conversion, and finish-time splits — built on Jack Daniels' formulas.

Back to PaceOpen Pace

Recent race · distance

Finish time

:
:

21:30

Examples · tap to load

VDOT score

45.8

Tier

Competitive

Threshold work pays off here

2540557080

Predicted equivalents

Pace · min/mi · min/km

  • Mile
    6:196:19 /mi3:55 /km
  • Input5K
    21:306:55 /mi4:18 /km
  • 10K
    44:357:10 /mi4:27 /km
  • Half
    1:38:487:32 /mi4:41 /km
  • Marathon
    3:25:227:50 /mi4:52 /km

VDOT = −4.6 + 0.182258·v + 0.000104·v². Percent of VDOT at duration t (min) = 0.8 + 0.1894393·e−0.012778·t + 0.2989558·e−0.1932605·t. Solved numerically per distance. Jack Daniels, Running Formula.