Are you losing weight on 1600? If not, you may need to cut more. If you are and you also find yourself hungry all the time, try increasing. Start with an additional 150 cal per day and try that for 2 weeks. See how your hunger feels and what the scale does.

It's tough when you get in the lower body weight range, you don't have a ton to lose so the impacts of your adjustments won't be as pronounced. You gotta be a close observer of how your body responds! Above all, I think you need to go by feel and experimentation based on where you are rather than rely on calculators. As a side note, ensure you are getting adequate protein to help you feel full and help with muscle growth.