Cycling Tools & Calculators

A growing collection of free, physics-based tools to help you train smarter, ride faster, and choose the right components.

• Cycling Power Calculator

  Estimate the watts required to ride at any speed on flat roads, factoring in rider weight, height, riding position, and rolling resistance.

• Bike Gear Ratio Calculator

  Compare chainrings, cassettes, cadence speed and climbing gears for road, gravel and 1x drivetrains.