1. What is Cadence?

Cadence refers to the rotational speed of a bicycle's crankset, measured in revolutions per minute (rpm). It's an important metric for cyclists to maintain efficient pedaling and optimize performance.

2. How Does the Calculator Work?

The calculator uses the cadence formula:

Where:

• \( speed \) — Bicycle speed in kilometers per hour (km/h)
• \( ratio \) — Gear ratio (dimensionless)
• \( circ \) — Wheel circumference in millimeters (mm)

Explanation: The formula converts speed to cadence by accounting for gear ratio and wheel size.

3. Importance of Cadence Calculation

Details: Knowing your cadence helps optimize pedaling efficiency, prevent injury, and maintain consistent power output during cycling.

4. Using the Calculator

Tips: Enter your cycling speed in km/h, gear ratio (chainring teeth ÷ cog teeth), and wheel circumference in mm. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a good cadence for cycling?
A: Most cyclists aim for 80-100 rpm, though optimal cadence varies by individual and cycling discipline.

Q2: How do I measure wheel circumference?
A: Measure the distance the wheel travels in one revolution, or use standard sizes (e.g., 700c = ~2100-2200mm).

Q3: Does cadence affect speed?
A: Yes, cadence combined with gear ratio determines speed. Higher cadence with appropriate gearing increases speed.

Q4: Why include gear ratio in the calculation?
A: Gear ratio determines how many wheel rotations occur per pedal revolution, directly affecting the speed-cadence relationship.

Q5: Can I use this for indoor trainers?
A: Yes, if you know the speed reading and your trainer's simulated wheel circumference.