The attached link is just a rough estimate. Not all bow manufacturer's have their draw length exactly at what is listed on the bow and also your grip, the bow's grip, the use of a D-loop, and the use of release can change this slightly.

To give an explanation of what I'm talking about. When I shot fingers my DL was 31". However, with a D-loop and a release it's approx. 30.25". The draw length is longerwith fingers because I bend a longer section of the string (approx 1.5" to 2") at the nock straight which shortensthe DL to get the same anchor pointcompared to the small connection point to the string of a release with a D-loop (approx 1"). Some people with shorter draw lengths can use certain releases to get their draw length a little longer.

I'd recommend trying to find a good bow shop where the guy knows what he's doing and can fit you properly and you can also try a few different manufacturers to see the difference in DL. A good shop can almost look at you without a bow and tell you what draw length to start with and then fit you and watch you shoot.Not all shops are like this though soyou may want to look at a bow with adjustable draw length and then post a picture of you with your set-up at full draw on here andlet the guys critique your draw to help you out.

http://www.pabucks.com/bow_draw_length.html