What's My FTP? 2.0 Beta
Upload a FIT file from a hard ride or race — ideally one with sustained efforts above FTP that lasted at least 2 or 3 minutes and where you eventually reached your limit. We'll estimate your FTP right in your browser session. Note: nothing is saved to your Xert account.
Here's your estimate for
Additional Fitness Signature Values
Additional Physiological Markers
What Is FTP and How Is It Estimated?
FTP (Functional Threshold Power) is the highest steady power a cyclist can typically sustain for about one hour. FTP is affected by muscle fatigue which Xert models as a depletion of glycogen in the muscles. The FTP estimate from this page is based on Xert's new 2.0 MPA model (currently in development) using the uploaded ride. Note: The resulting estimate is not saved to your Xert account.
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How can I estimate my FTP from a FIT file?
Upload a FIT file from a hard ride or race. The tool analyzes the effort profile and returns an FTP estimate in watts.
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What other values are returned besides FTP?
The estimator also reports PP (Peak Power), LTP (Lower Threshold Power), and HIE (High Intensity Energy).
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What is the required effort for this to work?
Ideally, the ride should include repeated efforts above FTP for at least 2 to 3 minutes and where you reach your limit/exhaustion.
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How accurate is a single-ride FTP estimate?
It is useful for a quick check, but full training-history analysis is typically more accurate and stable.
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