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Training pace calculator

Find easy, marathon, threshold and interval estimates from a recent race.

Your numbers

Time: 50 = 50 minutes, 50:00 = 50 minutes, 1:30:00 = 1 hour 30 minutes. Pace: minutes:seconds per selected unit.

Your result

VDOT

40

Training paces

SessionPace /km
Easy: full sentences5:55 - 6:38
Marathon estimate5:26
Threshold: about one-hour effort5:03
Interval: hard 3-5 min reps4:36
Short repetitions: mile equivalent4:25

Method and sources

pace = time / distance · VO2 = -4.60 + 0.182258v + 0.000104v² · VDOT = VO2 / (0.8 + 0.1894393e^(-0.012778t) + 0.2989558e^(-0.1932605t)) · v: m/min · t: min

Daniels-Gilbert performance model, retained from the saved VELOX calculator. VDOT is a race-performance score, not a laboratory VO2max measurement. Predictions assume appropriate preparation, comparable courses and weather. Marathon endurance cannot be inferred from a short race. Easy pace uses the saved 63-73% oxygen-cost range; repetition pace uses the equivalent mile. These are estimates, not the official V.O2 tables.

Sources checked 30.10.2026

Put your numbers into a plan

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