Critical Power and W' Calculator
Test 1:
Test 2:
Test 3:
Input your test results in this section. Make sure you enter duration in seconds, and not in minutes!
If you only did two tests, then just enter results for Test 1 and Test 2.
Results - Two Test Solution
Critical Power (W):
Approximate FTP (W):
W' (kJ):
If you did two tests, your results will appear in this section. If you did three tests, you should read
the results from the next section ('three test solution')
Results - Three Test Solution
Critical Power (W):
Approximate FTP (W):
W' (kJ):
Goodness of Fit (%):
If you did three tests, you should read your results from this section. We ideally want the 'goodness of
fit' to be above 97%, which indicates your test efforts were all well-paced.
Pacing Calculator
Use this section to estimate the power you can hold for a given duration and vice versa. This only works
for durations between 3-mins and 20-mins (180-1200 seconds). Make sure you look at the appropriate
section (two test solution if you did two tests, and three test solution if you did three tests).
Enter Target Duration (s):
Estimated Power (W) (Two-Test Solution)
Estimated Power (W) (Three-Test Solution)
Enter Target Power (W):
Estimated Duration (s) (Two-Test Solution)
Estimated Duration (s) (Three-Test Solution)