Cycling

Estimate cycling power from speed, mass, drag area, rolling resistance, and gradient.

Calculate Coggan seven-zone power training ranges from your Functional Threshold Power (FTP).

Estimate Functional Threshold Power by applying a 0.95 factor to your 20-minute test result.

Calculate watts per kilogram and compare against duration-specific performance bands

Calculate Training Stress Score from workout duration, Normalized Power, and FTP.

Calculate gear inches from chainring, rear cog, and wheel diameter to compare drivetrain ratios.

Estimate climbing power from VAM and total mass using gravitational work principles.

Convert cycling speeds between miles per hour and kilometers per hour instantly

Calculate optimal chain length for single-speed and track bikes using chainring, cog, and chainstay measurements.

Calculate radial spoke length from rim ERD, flange radius, and spoke hole count.