Hey Het...if you can get a good overhead shot with her next to something that you know the length of, like a ruler, then you got it made! Go
here and download the program. It is real easy to use.
Zoe, we have female boas here that don't seem to be getting much over 5'. It's like they just stopped growing. They get 1 jumbo rat every 2 weeks. One of them my b/f had always thought was male until I moved in and probed HER. LOL Once he stopped feeding her as a male (1 medium rat every 2 weeks) and feeding her properly, she gained some length and quite a bit of weight within a matter of months but not over 5'. The other female he has been feeding properly and just won't get any longer, just fatter. They get more exercise now
![Stick Out Tongue](http://www.ssnakess.com/forums/images/smilies/tongue.gif)
Some of our babies here that are over a year old are under 3 feet and one that just came in is over 3' at 10 months of age!
OK rambling aside (sorry) there really is no telling when she will reach a certain length. My best guesstimate would be: At a year and a half maybe about 3-4', 2 yrs 4-5', 3 yrs 5-6' and over 6' at 3-4 years of age.