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Calculators, a race calendar and the best running deals. Everything you need to train smarter and run faster, all in one place.
★ FEATURED RACES KNOWPACE★
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Your training tools
Turn your results into a plan. Calculate paces, zones, VO2max and fueling in seconds.
VO2max Calculator
Your aerobic capacity from a recent race result, using the VDOT method.
CalculateRace Time Predictor
Your times at 5K, 10K, half and marathon from a single result.
PredictHeart Rate Zones
Your five zones by pulse, with the % max HR and Karvonen methods.
CalculateTraining Paces
What pace to jog easy, run threshold and intervals for your real level.
CalculateRace Carbs
How many gels and how much drink per hour so you don't run out of fuel.
PlanPace Converter
Switch instantly between min/km, min/mile, km/h and mph.
ConvertFind your next race
National and international races. Filter by distance, date, location and price, and go from doubt to sign-up.
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Pick a tool, enter your latest result and discover what your fitness can already do.
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