Bicycle Cadence to Speed: The Wheel RPM Method
Speed in km/h = wheel circumference (m) × wheel rpm × 60 ÷ 1000. A 2.1 m wheel turning 200 times a minute covers 25.2 km/h. See how gearing fits in.
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Speed in km/h = wheel circumference (m) × wheel rpm × 60 ÷ 1000. A 2.1 m wheel turning 200 times a minute covers 25.2 km/h. See how gearing fits in.
Economy rate is runs conceded ÷ overs bowled: 36 runs in 4 overs is 9.00. Learn to handle overs like 3.4, and combine spells without averaging errors.
450 runs in a season with 10 dismissals is an average of 45.00, not 37.5. See how not-outs work, how to read a career average and its limits.
Net run rate is runs scored per over minus runs conceded per over. 300/50 and 250/50 give +1.00; see the all-out rule and a full 3-match table.
75 runs off 50 balls is a strike rate of 150. Understand the batting formula, what a bowling strike rate means, and how it links to the required rate.
240 W at 75 kg is 3.2 W/kg. See how the ratio predicts climbing speed, why total mass matters, and what weight or watts changes do to it.
Explore our free calculators and apply these concepts to your own numbers.