Bread Hydration Calculators

I desire a bread with a specific hydration. Tell me, calculator, how much water should I use if I weigh my flour and starter?

I want to fill my bread pans with an exact weight of dough and I know the hydration I want. I also know how much starter I want to use. Tell me, calculator, how much flour and water should I use?

Given, flour, water, and starter, calculate the total weight and hydration.