Calculate how much protein, fiber you should be aiming for and how many calories you need to maintain your weight, lose 1/2 pound per week, or 1 pound per week as well as your daily protein goal.
Calorie apps like MyFitness Pal and LoseIT are known to calculate calories very low which is why I never recommend using those numbers to clients.
This calculator uses the Mifflin-St Jeor Formula which is recognized as the most valid estimate of RMR in the nutrition world.