Sports calculators
Pace, power, and training calculators.
- One Rep Max Calculator (Epley & Brzycki, with % of 1RM Table)
Estimated one-rep max from a set of 1–12 reps, by Epley or Brzycki, with training loads at each rep count.
- Running Splits Calculator (Even Pace per km or Mile, Split Table)
Even-pace splits for a target finish time, with the elapsed time at every split and the pace in km and miles.
- Cycling Power Calculator (Watts from Speed, Grade and Weight)
Estimated power at the pedals from speed, gradient, rider and bike weight, split into climbing, rolling and aerodynamic drag.
- Swim Pace Calculator (per 100 m or 100 yd, with Race Time Projections)
Pace per 100 m or 100 yd from any swim, with per-50 and per-25 splits and the same pace over race distances.
- Calories Burned Calculator (MET Values from the Compendium of Physical Activities)
Calories burned by walking, running, cycling, swimming or gym work from your weight and time, using published MET values.
- Race Time Predictor (Riegel Formula: 5K, 10K, Half and Marathon)
Predict a marathon, half, 10K or 5K time from a recent race with Riegel's formula, with the pace and the working.
- Betting Odds Calculator (American, Decimal & Fractional)
Convert odds formats, payout and implied probability.
- Parlay Calculator: Payout and Odds for Any Number of Legs
Combined odds, payout and implied chance of a parlay from American odds, with the working shown.