Sports pacing
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Endurance pacing tools: running pace and finish-time math, even race splits, Daniels-style VDOT fitness estimates from race results, pool swim pace per 100 m/yd, and bicycle gear ratio with speed from cadence. Training estimates only — not medical or coaching advice.
5 tools in this section
Running Pace
Calculate running pace, finish time, or distance. Free pace calculator for 5K, 10K, half marathon, and marathon training.
Race Split
Calculate even pace splits for a race distance and target finish time. Free running split calculator for 5K to marathon.
VDOT Pace
Estimate VDOT running fitness from a recent race time and distance. Free VDOT calculator — training estimate, not lab VO₂max.
Swim Pace
Calculate swimming pace per 100 meters or yards from time and distance. Free swim pace calculator for pool training.
Bike Gear Ratio
Calculate bicycle gear ratio, rollout, and speed from chainring, cog, cadence, and wheel size. Free cycling gear calculator.