Average weight loss per week?

It is accurate, but how often do you eat the exact same thing every day and work out the exact same amount every day for 5 weeks? LOL

At the beginning (April) I was averaging 2 lbs a week. I hit a plateau in August then started losing again until November. Then started going up and started losing again in January (dratted holidays....LOL) So far this year, I'm doing about 1lb a week right now (8.9 lbs in 8 weeks)

That thing drives me nuts. I have actually been doing this for 6 weeks and have lost exactly 6 pounds to the ounce. Equally 1 pound per week. 1-2 pounds per week is the best way to go to keep it off and not lose water weight. Good luck!

I'm averaging about 2.5/week. However, the first 10 came off really fast after I was correctly diagnosed and treated for a medical condition so i'm really closer to 2.0/ week but i am working out like a mad man (i don't log it all here) and have been very strict keeping on track with water and calories. So far, 53 pounds in 21 weeks

I've been losing about 1 kg a week on average

It is accurate, but how often do you eat the exact same thing every day and work out the exact same amount every day for 5 weeks? LOL

At the beginning (April) I was averaging 2 lbs a week. I hit a plateau in August then started losing again until November. Then started going up and started losing again in January (dratted holidays....LOL) So far this year, I'm doing about 1lb a week right now (8.9 lbs in 8 weeks)

I'm going to have to disagree with you there on the accuracy of the prediction. The calculation only takes into account calories, hypothesizes a calorie deficit for you based on a starting daily calorie number it thinks you have been eating every day based on your weight and lifestyle. Then that deficit gets converted into a weight number based on an imaginary calculation that x amount of calories=x amount of lbs (3500 cals=1lb). So, for example, if it calculates a 100 calorie deficit for 35 days (35 days in 5 weeks), then you will lose 1lb in 5 weeks. And so on.
Completely inaccurate/erroneous, takes absolutely nothing into account but supposed calories in, supposed calorie deficit, and supposed calorie impact on weight loss. But it's nice to dream.

Oh and to help the OP, I would just focus on your own body shape and lifestyle and not be worried if you don't lose a certain number on the scale in a certain period of time. You may be gaining muscle, which weighs more than fat, some people may be losing more water weight than you, hormones, and other processes that come into play. Weight loss is as individual as you- just keep up the good work and know you are making healthier choices and doing the right things for your body.

That's true - that there are a lot of other factors to weight loss but the basic principle of calories in calories out is universal enough for everyone to start with. Once you've been doing this for a while, the you understand how your body reacts to the various other factors (water weight, hormones, muscle gain, metabolism) and calories in/calories out becomes less important. But to start with, it's the only thing that's really universally applicable to most people.

Most people doing low cal diets won't necessarily put on muscle, especially not right away (and if they eat a vlc diet, they will typically be losing quite a bit of muscle). To clarify too though (just have to)....LOL muscle doesn't weigh more than fat, it's denser. A pound of muscle weighs the same as a pound of fat, it just takes up less room (hence showing in your measurement) and you might not convert one pound of fat to one pound of muscle either, it might be one to two or one to three or three to one or two to one - that's where those other factors come into play in a big way.

One point that you and someone else made that was extremely valid is is that everything is an estimate. The 5 weeks to assumes that they are accurate. If you ate a higher calorie version of something than was in the DB and used it anyways, if your lifestyle isn't quite what you signed in as during that time period, if your exercise intensity didn't let you burn what you thought you did, all of those factor in to help create that number. So if any of those are off, so too will the estimate.

On a personal note, there have been times when I eat approximately the same number of calories daily for a few weeks and my results are pretty darn close to what the estimate is.....then there are times that it's way off, but that's more me than the calculations

I have everything set to 1lb a week, that's fine for me. I've lost 23lbs in 18 weeks so averaging 1.2lbs a week.

My average is 2 lbs per week, although I'm set on 1 lb/week. I find that when I eat more than the recommended 1200 calories, I lose weight. Right now, I'm at 1690, and I've lost 2 lbs this week working out every other day.