BMR 1200 but can't get below 1200 cal?!

You need to eat ABOVE your BMR. Ideally about 20% below your TDEE.

Your BMR is what your body needs just to survive if you were in bed all day. You need to factor in your activity level as well, that includes everyday things we do, like your job, as well as exercise. That is your TDEE. It is from that number you need to create a deficit from, not your BMR.
Fat2fitradio has a TDEE calculator.

Plus you are on the low end of the scale as it is for healthy weight so any deficit should be small.

Eating too few calories over a prolonged period will have a negative impact on your health and metabolism.

I am between 4'11 and 5'0 and try to eat closer to 1400. So I am tinier than you:-) If you are exercising and eating only 900 cals then you are netting way below 900 and probably not doing your metabolism or muscle mass retention any favors!

Do you exercise and if yes then what type of exercise?

Your BMR is what your body needs just to survive if you were in bed all day. You need to factor in your activity level as well, that includes everyday things we do, like your job, as well as exercise. That is your TDEE. It is from that number you need to create a deficit from, not your BMR.
Fat2fitradio has a TDEE calculator.

Plus you are on the low end of the scale as it is for healthy weight so any deficit should be small.

Eating too few calories over a prolonged period will have a negative impact on your health and metabolism.

My TDEE is pretty low (1540 cal) because I sit all day long for most of the days. So that means it will be slow for me to lose weight if I eat just about 1200 cal at my weight?

Yes. You have very little to lose as it is which makes it difficult. I also agree with the people suggesting body recomposition as opposed to trying to drop weight.

I am new to this, just finishing my second week. I haven't lost a lb in 2 weeks. and have actually fluctuated from the same weight or +1 lbs. Frustrating, when I am not going over 1200 calories, usually I am under. and I work out 5-6 days a week. what am I doing wrong?!

Search "In Place of a Road Map" on here. Read the entire first post. Thoroughly. And then read it again. Find out your TDEE and BMR. Make sure you are eating enough for your body, extreme under-eating will actually hold you back from losing adequately. Keep in mind it will take your body about 2 weeks or so to get used to the new change, so don't get impatient. Stay with it.

If you only need to lose a few pounds, then your deficit should be only a couple hundred calories. Even at 1200 you are at a 350 calorie deficit. Your body can only burn so much fat at a time, if you go too far with the deficit you're just going to end up dropping muscle instead of fat.

Hi my calculated BMR is 1200 cal but I am told that I can't eat less than 1200 cal. So how am I gonna lose weight? -.-
Also, I'm eating around 900 cal daily and I feel great. I eat all the healthy stuff like fruits, veggies, fish, lean meat. I eat till I feel full and can only get to 900 cal per day. If I have to eat more than 1200 cal, first it will be hard for me to lose weight, second, Ｉ have to eat even if I'm not hungry at all. I'm a tiny person (５'２''　１０６　lbs) I just want to lose a little excess fat. Is eating at least 1200 cal varies among people? Since I'm a tiny person even if I don't eat at least 1200 cal, I won't have any health problems? For example, larger people need 1200 cal but tiny people may only need 900 cal.
Thanks!

You will not get rid of this fat you see by losing more weight. If anything, you will make matters worse by decreasing your muscle mass which actually helps you to burn the fat! You need to get your head on straight here, and get into some strength/weight training and forget the scale number. I have seen a 5'5 female weighing 140Ibs, so lean from having a lot of dense muscle that she fits a size 0-2 USA, no joke, she was tiny. The scale doesn't show anything really, especially when you are already at the lower end of normal for your height.

I have seen a 5'5 female weighing 140Ibs, so lean from having a lot of dense muscle that she fits a size 0-2 USA, no joke, she was tiny. The scale doesn't show anything really, especially when you are already at the lower end of normal for your height.

yup, my sister weighs about 130 and wears a USA 0, too. It's all about that dense muscle, she looks amazing.

I think I am confused about the whole 'deficit" part of this.my TDEE is 2203; so how many calories should I be eating if I want to lose even 1 lb a week? I still would like to lose at least 15 lbs, I know that doesnt sound like much, but I am short. So even 5 lbs is noticeable in my size. thanks for all your input! i appreciate it

I think I am confused about the whole 'deficit" part of this.my TDEE is 2203; so how many calories should I be eating if I want to lose even 1 lb a week? I still would like to lose at least 15 lbs, I know that doesnt sound like much, but I am short. So even 5 lbs is noticeable in my size. thanks for all your input! i appreciate it

Take 500 from your TDEE to lose Ib a week. And do not eat back exercise calories when doing it this way.

20% is a better number than 500 across the board. fits a wider range of caloric needs.

If you are exercising and eating back some exercise calories, you will lose weight. PLEASE eat your minimum AND eat back SOME exercise calories. If you want to lose weight AND BE HEALTHY, eat and exercise and don't worry about the scale so much. It took me two years to lose almost 60 pounds and I feel really good and my butt and chest are up where they are supposed to be! Women need to stay strong and eating and exercise is what keeps you that way. There are so many things you can do - yoga, zumba, spinning, weight lifting, running, interval training. I recommend finding a nice gym and taking some classes to explore what you like. I am now getting comments like Jessica Rabbit, Pamela Anderson, Smokeshow. LOL. I can't imagine what I'd look like if I didn't take it slow and focus on the health part. Don't starve yourself. Eat and workout. Trust me - you won't regret it. Good luck!

I think I am confused about the whole 'deficit" part of this.my TDEE is 2203; so how many calories should I be eating if I want to lose even 1 lb a week? I still would like to lose at least 15 lbs, I know that doesnt sound like much, but I am short. So even 5 lbs is noticeable in my size. thanks for all your input! i appreciate it

Approximately 3,500 calories make up a pound of fat. So over 7 days that is a daily deficit of 500 calories. So with a TDEE of 2,203 that would be 1,703. If using the MFP method, how many calories does it say after you've entered your activity level, weight, height, sex, 1 lb/week goal, etc? 1 lb per week might be too much, although using TDEE-X% 500 calories is a deficit of 22.7% so it depends on your body.

Height doesn't take lean mass into account and I haven't worked out my "rule" for anything other than for heights of about 5' 7": men less than 140 lb and women less than 130 lb should probably increase lean mass first.

At 101 lb, you would be classed as underweight by BMI and at 91 lb your BMI would be 16.64. Although BMI doesn't take body composition or bone density into account, at the edges of normal and overweight/underweight you should be able to tell if you have above/below average lean mass for your height. If I were you, I'd probably set a goal of 5 lb over 12 weeks assuming I had average muscle mass and bone density and if I weren't sure about that I'd probably involve my doctor as "underweight" has been linked to quite a few health problems.