Someone asked about the Weight Watchers Points formula. The following can be found here.
The actual Weight Watchers Points formula used in the Weight Watchers Points calculator is currently under strict US Patent laws. The formula is shown below:
Where:
p = Points
c = Calories
f = Fat Grams
r = Dietary fiber Grams
(Note: min{r, 4} equals the number of grams of dietary fiber or 4, whichever is smaller. In other words, only the first 4 grams of fiber “count.”)
[Edit: The above is the old formula. Weight Watchers has since developed a new formula.]