Cycling Speed Calculator

Cycling speed is distance divided by elapsed time in hours, the same definition used by every bike computer. Pace, shown alongside, is the inverse — minutes per kilometre — useful for interval planning. Calories are estimated at 8 MET for moderate road cycling (about 16–19 km/h on flat ground), multiplied by kilos and hours; at 75 kg, an hour at that intensity burns roughly 600 kcal before wind, gradient or drafting adjustments.

Real roads are not wind tunnels. A 20 km/h headwind can erase 3–5 km/h of apparent speed, and a 5% grade costs more power than the flat figure suggests. Treat the calculator as a clean flat-ground baseline — then add subjective correction for hills, wind and surface, and compare efforts by power or heart rate when precision matters.