Free Tool
FTP Calculator | Sports Calculator
FTP Calculator - FTP from 20-minute test: FTP = 20min avg power x 0
Built by an engineer who chases finish lines and is obsessed with data. Thomas Prommer — technology executive who has worked with Google, Apple, Nike, Adidas, Netflix and other global brands. Also an Ironman finisher, HYROX Pro Division competitor, and marathon runner. These tools combine engineering rigor with real race experience.
FTP Calculator
FTP from 20-minute test: FTP = 20min avg power x 0.
Methodology
FTP from 20-minute test: FTP = 20min avg power x 0.95. Ramp test: FTP = last completed minute avg x 0.75. CP testing more accurate.
FAQ
How does this calculator work?
FTP from 20-minute test: FTP = 20min avg power x 0.95. Ramp test: FTP = last completed minute avg x 0.75. CP testing more accurate.
How accurate is this?
Based on established sports science formulas and research.
Who should use this?
Athletes, coaches, and fitness enthusiasts of all levels.
Should I consult a professional?
Yes, especially before major changes to training or for health conditions.
Results are estimates. Consult a professional for personalized guidance.