I want a backwards calculator

Dewymorning

I want a calculator in which you can enter your current calorie intake and your activity level (as well as height, age, gender etc), and it tells you at what weight that would be maintenance.

I just feel like my current calorie intake of 1850 a day is almost perfect, and I want to know if I just stay at between 1800-1900 calories a day, at what weight would I eventually settle out at.

Mostly just out of curiousity.

EDIT, Nevermind, I just played around with the IIFYM calculator and it basically gave me what I wanted to know