🏃 Running & Cycling Training Tools
Eight tools for runners and cyclists — race time prediction, VO2 max estimation, training load, and gearing calculators. Every one runs entirely in your browser.
🏁 Race Time Predictor Calculator
Free Riegel formula race time predictor from a known result.
Open Tool →🚴 Cycling Speed from Cadence Calculator
Free cycling speed from cadence and gearing calculator.
Open Tool →📅 Weekly Mileage Progression Calculator
Free safe weekly running mileage progression planner.
Open Tool →⏱️ Interval Work/Rest Ratio Calculator
Free interval training work-to-rest ratio calculator.
Open Tool →🚲 Bike Wheel Circumference Reference
Free bike wheel size to circumference reference chart.
Open Tool →