If you are using the Online Tools, then just go to the website, choose the calculator and the exercise tab. If you aren’t online or near a computer, a rough guideline is approximately 70-80 calories burned* is 1 AP (activity point). If you are at a computer and can’t find the exercise you completed on the WW calculator, try http://caloriesperhour.com. They have a comprehensive listing of exercise types (including things that arent truly exercise but household chores instead).
* There is no official confirmation from Weight Watchers of how many calories are in 1 Activity PointsPlus value. Based on the old patent for previous plan, 1 AP = 100 calories when 1 P = 50. Given that one P+ = 35 calories, that would put 1 AP at 70 under the new system. Many people use 80 to provide a greater buffer and others continue to use 100.