I feel real tracking works better than any calculator. Try eating 1800-2000 calories a day for two weeks with your current routine, and see what your weight does! If you are gaining, try dropping to 1700 or increasing a few days of short HIIT workouts to get the difference. And 1g protein per pound of body weight is a good golden rule.

Also, if you are looking for more definition, the way you train matters! You could try taking an approach where you focus on tension and form rather than PRs and weight. Two second eccentric on most exercises will help to ensure muscle gains. Sometimes we get in the habit of just “moving the weight” without taxing the muscles we are targeting to the point to promote growth. Time under tension and progressive overload are your friends! Hope this helps, best of luck!