In order to avoid disappointment

Officially? Twice a week, ish. I like a Saturday a.m. Check in, and one of the groups I'm in weighs on Tuesdays... But I'll jump on the scale in between if I feel skinny . And I check my perception in the mirror every day.

Once a month can work. You can keep track of your measurements, of how your clothes feel, to let you know in the meantime. Lots of members have had long-term success with once a month weigh ins. I'm a little varied on how many times I weigh. I sometimes go a week. Sometimes I go two weeks. Over the holidays, I weighed every three days. Just find where your comfortable and go from there!

Twice a week works best for me. If you're trying to lose weight it's best to have set goals for the week. Most usually go with two pounds. So I'll weigh myself once in the beginning of the week to see where I'm at and then I'll weigh myself again in the middle. If I'm reaching my goal it motivates me to keep working hard and if I'm not at the goal yet I still have half the week to kick it up a notch.

If you do it once a month you may avoid being disappointed throughout, but you may be knocked right out of the game if you weigh in at month's end and find out you've lost nothing. The disappointment at wasting a month would be huge. If nothing else go with once a week so you can track your progress.

And as everyone else has said the scale is definitely not as important as inches.

I have been trying to wait for 2 weeks to go by before weighing in. I find I have a bigger weight loss to report. I had to move my scales out of my bathroom and into a different area of the house so I wouldn't be tempted to weigh myself daily or sometimes MORE!

Once a week is best. At the same time of the day, same day of the week, same scales.

Once a month is fine but you need the motivation of regular weigh ins

That's actually a really huge assumption. If you had said " I need the motivation of regular weigh ins," it would have been true.

OP, I weigh once a week because it's what works for me. There is no "best," but it should be no more than once per week if you don't want to get distracted by daily water weight changes.

ETA: I have found that as I continue consistently with my lifestyle, I have a lesser need for the motivation of the scale, and I am actually considering moving to monthly weigh-ins as well. Do what works for you.

I weigh daily to track intake/cal burn. I'm not worried about the numbers emotionally, just mathematically.

2 times a month