🚴♂️ How far do I go per pedal rotation?
Let’s calculate the distance per pedal rotation in the highest gear of this bike:
Speed = 22.4 km/h
Cadence = 41 1/min (rpm)
Solution
Using Calcumber, it is a one-liner:
Input: 22.4 km/h / 41 1/min
Result: ~ 9.1 m
Why this works: Calcumber converts both values to the same units.
22.4 km/h; use m/s ➔ 6.222 m/s
41 1/min; use s ➔ 0.683 1/s
Now dividing the two values cancels out the unit second:
6.222 m/s / 0.683 1/s ➔ ~ 9.1 m
🛠 Personal story:
I started investigating this after noticing my bike’s highest gear felt off — turns out, it really was getting lower over time.
The photo shows a replacement bike I used during repairs.
Measuring speed and cadence gave me insight into how much distance I actually cover with each pedal stroke.
– Sam and Calcumber