Complete Cycling Calculator Suite 2025

Calculate Functional Threshold Power using 20-minute, 8-minute, or ramp test protocols. Set power zones for training.

Calculate watts per kilogram for climbing performance. Compare to cycling categories and competitive standards.

Convert power output to energy expenditure. Plan nutrition and hydration for long rides and races.

Calculate heart rate zones specifically for cycling. Correlate with power zones for comprehensive training.

Calculate 7 power zones from your FTP. Includes zone descriptions and training recommendations for each level.

Calculate VO2 max from cycling power data and performance. Cycling-specific aerobic capacity assessment.

Calculate gear ratios, gear inches, and development. Compare different chainring and cassette combinations.

Calculate speed from cadence and gear ratio. Find optimal cadence for different terrain and power targets.

Calculate frame size and position measurements from body dimensions. Road, mountain, and TT bike fitting.

Calculate optimal tire pressure for your weight, tire size, and riding conditions. Road and mountain bike formulas.

Calculate wheel circumference and rollout for accurate speed/distance measurements. All wheel sizes included.

Calculate aerodynamic savings from position changes. CdA calculations for time trial and triathlon bikes.