How many calories should I be eating if I'm very short?

I would aim for 1200 and see how you do. This is all trail and error anyway. Give it 3 weeks and if you don't lose anything, knock off 100 calories and see if that works. I'm on the opposite spectrum myself at 5'11, so I can't really speak for shorties, but I have heard where people have a hard time losing if they net more than 1100. Now, if you exercise eat those calories back so you can eat more. I think you need to see how you react to the 1200 calories first though...

I'm 5 feet tall and I have 1645 as my daily calories goal. Being short is a determining factor, yes, but so is age, current weight and most importantly your activity level. You need to find out your bmr and tdee and go from there. You should never eat net below your bmr, and for me 1200 is below my bmr. So don't just think "Im short I should eat low." It doesnt always work that way. Good luck!