Is this a crazy plan?

Give yourself a few more weeks. Just posting this here on the MFP boards, I think you have a feeling that this is not healthy or doable.

Any less than 1200 calories/day and your body will go into starvation mode. You won't lost weight and you won't have the nutrients you need. Take it slow. It's better for you than quick weight loss and it's easier to keep the routine if you're not killing yourself. You won't make your goal by that date, but you'll be better off in the long run.

That is totally not realistic. The closer you get to your goal weight, the more stubborn the weight loss will be. Too high of a deficit and your body will go into starvation mode. Slow and steady is the key.

Give yourself a few more weeks. Just posting this here on the MFP boards, I think you have a feeling that this is not healthy or doable.

I agree.

I think that you need to give yourself a few more weeks. Things happen and come up that can cause you to eat more than you are projecting. If you start to get the sense of failure because you have set your goal so high and in stone you will lose motivation and get frustrated! Plus weight loss needs to be done in a healthy way, changing your eating habits to eating lots of fruit and veggies, whole grains, and lean protiens will shock your system and get the weight loss started (if you don't already eat like this). Cutting your calories too low can put your body into a type of hybernation sotring ALL calories that come in, because it thinks it's starving. I currently struggle with this from poor eating habits over a long period of time, never eating enough. eating something every couple hours keeps you body fueled and feeling good so that you can lose the weight that you want to. Give yourself time and be happy with everything that you lose, cause you already look great!

What's happening on the goal date that you "have to" be down to your desired weight? Getting married? Starring in a movie? If not, lose your weight more slowly. If you try to go too fast you risk crash dieting - not healthy, and not sustainable over the long term (yeah, you'll gain it back!). That said, doing 500 calories a day in exercise is not that hard to do - I'm doing it and I'm an awful lot older than you which makes it much harder! But you should eat back those calories to keep your metabolism up. Are you eating your veggies? Hope so... they're good for you!

Don't do it. It is unhealthy. Losing weight is fine but not to the extreme of starvation. You are too young especially to be eating that few of calories. Hope this helps.

Ok I am 5'9" and 164.4 lbs. I am in a healthy weight range but barely! I want to weigh 140 lbs by October 31 that is in 102 days. I am eating 1200 calories a day and my BMR is 1600. That is a 2800 calories less a week and I am projected to lose 1 lbs every 8.5 days. That alone will cause me to lose 12 lbs by my goal date, but I need to lose 24.6 total telling me I need to lose another 12.6 lbs by exercising!!!!! That means I need to atleast burn 435 calories everyday with out eating my exercise calories so my net would be 765 calories. I just want to know if you think this is possibe or should I give myself a few extra weeks?

Your calculation is wrong. You are basing your deficit off of BMR, your maintenance is higher, and you are in a larger deficit than 400/day. Go to goals and look at calories burned from normal daily activity, that is maintenance so you would take that - 1200 to get your deficit.