Just making sure (acivity level/calories question)

So... new city, new school, I don't have my exercise equiptment (or my bike) anymore... but - I walk more (3-6 miles a day)

I can't weigh my food anymore - so I'm sort of guessing (I *should* be averaging around 1900-2200 calories)- and I'm losing around half a kilo a week (2kg since october 1st)

Does that sound OK?

(I'm 160 cm tall, 19 years old, 73kg)

(I thought it would be better to check)

http://www.bcm.edu/cnrc/bodycomp/bmiz2.html

Rather than guessing, run your stats through this link and read off the number that corresponds to 'very active'... more than 1 hour a day.   For weight-loss deduct 700 from that number.  You should end up with something around 2400 cals.  Certainly don't go below 2200 on a regular basis.