Cycling Aerodynamics Calculator

Compare two riding positions to estimate aerodynamic drag (CdA) using the Chung Method.

How to Use

1. Perform two field tests (e.g., aero vs. upright position) on a flat course, recording average power, speed, and weight.

2. Enter data for Test A and Test B below. Air density and rolling resistance are pre-set for simplicity.

3. Click "Compare" to see CdA, time difference for a 10-mile time trial, and power saved.

Limitations

This calculator uses a simplified Chung Method, assuming flat terrain, steady-state riding, and no wind or elevation changes. Results are estimates and may vary in real-world conditions.

Enter A/B Test Data

Test A

Test Name (e.g., Upright)

Total Weight (kg) ?

Test B

Test Name (e.g., Aero)

Total Weight (kg) ?

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Cycling Aerodynamics Calculator

How to Use

Limitations

Enter A/B Test Data

Test A

Test B

A/B Test Results

Welcome to the Cycling Aerodynamics Calculator

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Cycling Aerodynamics Calculator

How to Use

Limitations

Enter A/B Test Data

Test A

Test B

A/B Test Results