Cycling Pace per km
Computes cycling pace in min/km and average speed from time and distance.
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How cycling pace per km works
In cycling, pace is how long you take to ride 1 km. Flip it around and you get speed in km/h instead: pace = total_time / distance_km and speed = distance_km / total_time_h. On the road you'll see roughly cycle touring 15–25 km/h, amateur road 25–35 km/h, and a pro Tour ~40 km/h average. What you're really fighting on the flats is wind, gradient and how aero you sit. And once the road tilts up, raw speed stops telling the story. Power-to-weight (W/kg) does. A rider at 4 W/kg goes up a 6% climb much faster than a heavier rider pushing the same absolute watts.
Example: 40 km in 1:30:00 → 1.5 / 40 = 0.0375 h/km = 2:15 / km (26.7 km/h).
Applications
Garmin Edge and Wahoo bike computers. Strava segments. Working out Audax brevet cutoffs (200/300/400/600 km), timing Brasil Ride stages, guessing your Ironman bike split, setting FTP-based training zones.
FAQ
Pace or speed? Most cyclists think in km/h, but pace per km lets you line your numbers up directly against running and triathlon splits.
Why is W/kg better than speed? Speed is at the mercy of terrain, wind and who you're drafting behind. W/kg is the rider's own engine, and that's what wins the climbs.
Flat vs hilly average? Put the same effort into a hilly course and your average can land 5–8 km/h below the flat equivalent. You lose time climbing that the descents never quite give back.
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The results provided by this tool are for general informational and educational purposes only and do not constitute professional, financial, medical, legal, tax or accounting advice. Always confirm important decisions with a qualified professional and official sources.