Result oriented liposuction
In general there is 2.2 pounds per liter of fat removed. In general you are 50% of the way there at 6 weeks and 80% at 3 months. When large areas are treated with liposuction there is always some degree of fluid retention. Liposuction is really more about how much fat is left behind and not how much fat is removed. You can remove all of the fat and it will not look very good.
The best answer or advise is to see in person a boarded plastic surgeon in your area. At the visit you will see photographic examples of results than you can determine if liposuction is for you. Regards.
Liposuction can cause a decrease in circumference
When liposuction is performed, you see the fat leaving via a tube. As fat is removed, the vertical height that is reduced on profile might be rather significant, especially when the swelling goes away. The circumference does not lose the same number of inch reduction because it is a circular line around the body that varies similar to a circumference being more than three times (pi, the mathematical figure) the diameter. So if the diameter of the circle decreases (by losing volume of fat via liposuction) then the circumference (waist line or thigh circumference) may decrease by a multiple of that reduction.
Your result will depend on how much fat can be removed and that can only be determined by an examination. Some people will decrease a full clothing size or more, while others may only go down a half inch or less.
Results from Liposuctioning
Liposuctioning is not a weight loss procedure, it is a body contouring procedure. Although most patients lose weight it is designed to reshape of defat. The limiting factors in the results are the amount and looseness of the skin and the ability of the skin to contract.
It is very important to be realistic about what can be done and what the positives and negatives are regarding liposuctioning.
Liposuction changes your shape.
It is not so much about inches or pounds, but changing your shape. For example, if you have excess fat in your thighs and are "pear-shaped", after liposuction you will be "apple-shaped". Look at before/after photos to see examples of this on web sites of surgeons in your area.
Liposuction is for reshaping, not weight loss
In order to get a realistic answer to your question you would need to see a plastic surgeon, but here are a few general guidelines. Fat cells are genetically "programmed" to behave differently in different parts of the body, as though some of it is for emergency reserves. The fat in these areas is very resistant to change with diet and exercise, so by removing them with liposuction the body can be permanently reshaped.
The one caveat is that if you have, say, 3 areas like this, but you only treat 2 of them, the one remaining may grow even more. If all the disproportionate areas are taken care of, the body will distribute fat evenly.
You can lose inches with liposuction.
It's the inches that matter for a great liposuction result, not so much the number of pounds removed. Look at pictures on RealSelf and on my website. We often get dramatic results.
Formula for translating inches lost with liposuction
The typical abdominal panniculus removed during routine tummy tucks in an ideal candidate rarely weighs over 2-3 pounds.
Unfortunately there is no formula to translate lost weight into inches reduced.
Many other factors go into determining your clothe's size and this includes your bone structure which will not be effected by liposuction surgery.