The standard answer to how much fat can be removed during a single liposuction session is usually given as 5 liters; however, that includes the volume of solution that is injected into the fat to facilitate its removal and numb the treatment area. It is also an arbitrary number. Thinner patients would need to have less removed. Those with more body bulk may be able to have more removed at once. It will vary by the patient's body type, health, and the practitioner's skill and expertise. Please note that liposuction and liposculpture are techniques to remove fat, not lose weight. It might be more helpful to think in terms of inches of fat lost, rather than volume of fat removed. You might also want to look into some of the nonsurgical, noninvasive permanent fat-removal techniques, such as CoolSculpting, Vanqish, and ThermiLift. Please consult with board-certified dermatologist to find out which technique is best for you.