Monsoon has lost over 9 stone in about 6 months and has always had good weekly losses. I've lost 5 1/2 in about 4 months. LT say you should lose about a stone a month which I am averaging now, although the first month it was higher.
I'd say think about 6 months and be pleasantly surprised if you do it sooner. I have about another 3 1/2 stone to lose and hope to be at target by November, about another 2.5 - 3 months.
I started on 10 march 08 and finished on 12th July and I lost 7 stone. That is about 17 weeks so just over 4 months. I had a lot to lose though, and Im still at it. I think the rate varies depending on the person, how much they have to lose, water intake etc.
to be honest i have only done the usual running around the house after the kids,walking etc not strenuous excercise as such, havent really felt like it.... only just started to do sit ups etc now although i still get light headed after 22 weeks xxxxx
I suppose ive been quite lucky really. Apart from the headaches on day 2 & 3 ive felt really well. In fact ive felt better than i have done in a long while. Im only on week 5 and i still have 5-6 stone to lose so i still have a long journey ahead. I bet you feel fantastic!!
It's difficult to give an estimate but if you go buy what LT say which is the standard '1st per month' then that should give you a rough idea. Like CF said, the first stone will come off very quickly but after that it should even out. x