FTP functional threshold power Calculator

Calculate Functional Threshold Power (FTP)

Formula

The formula to calculate the Functional Threshold Power (FTP) is:

\[ FTP = 0.93 \times 20AP \]

Where:

FTP Definition

FTP stands for Functional Threshold Power. This term is used in the sport of cycling to describe the average power output a cyclist can maintain over an hour of all-out effort. Functional Threshold Power is achieved at between 85-90% of the maximum heart rate. Since an hour-long time trial is mentally and physically exhausting, cyclists use 20-minute time trial estimates for determining Functional Threshold Power (FTP).

Example Calculation

Let's assume the following value:

Using the formula:

\[ FTP = 0.93 \times 250 = 232.5 \, \text{watts} \]

The Functional Threshold Power (FTP) is 232.5 watts.