The experts tell us you should not weight yourself more than once per week. However, some of us will weigh ourselves many times in one day. It may be best to try and stick with weighing yourself 2 – 3 times per week at most and no more. Because the weight will go up and down every day, it is hard to know what is going on. By weighing your self at the same time every week, once a week (as an example: every Monday morning at 8.00am), you should get a more accurate picture of what your weight is doing.