This is a copy of my post at a different thread. It maybe of help here.

Measuring could be a more accurate indication of losing weight than using the scale. Here is why:

When you lose body fat, water may get into some of the empty fat cells replacing the fat. This could make you notice no change in your weight and could lead you to believe that you are "stalling".

When your body retains water, it stores the water evenly all over the body surface not specifically in the areas where fat has been. This is why in this case you notice that your waist, chest and hips measurments indicate that you have lost weight although your scale indicates no loss.

After an unpredictable amount of time, your body will release the retained water and you will notice a sudden drop in your weight.

It is good to know that the body fat loss is a continuous process, we actually never stall as long as we are in the state of ketosis. The water retaining/releasing cycle is what makes us believe so.

As you come closer to your goal weight, your body fat loss slows down to a degree that the water cycle becomes the most important factor in your weight fluctuation.