Hi am a WW member and we asked that one before - apparently, the formula is too complicated so that is why they made the calculator. Now, I understand if you cannot join right now so let me give you a couple ideas - most women that are on it (unless really large) are going to be 29 points plus- at least most of the women in my group are. Men are different - they get A LOT more points plus. Most all fruits are free and many veggies are either free or 1-2 pts +. If you have an android phone (smart phone), you can download the calculator (search for weight watchers calculator). Also, in our meeting, a member just told us about an app called wwcalcscan - it can scan a barcode on an item and tell you the points.- she said it was accurate (only thing, if you buy, say, a box of fiber one bars, it has hard time scanning the box, but it will scan the individual bar if there is a bar code on it). I havent had a chance to download it and check it out yet but sounds cool.
Also, if you want to follow loosely, you could try using the old calculation method and add a couple points onto it to get the new points plus value. I have found, that most things are typically 1-2 points more than they used to be. However, you get fruit pretty much free so you can bulk up on that throughout the day.
good luck!