A wrong estimate here costs real money or a ruined project: a short pour, an overloaded floor, a dough that won't behave. These calculators solve the numbers properly, in your browser, free.
Volume for river tables, molds, coasters, and flood coats — split into part A and B for any mix ratio, with waste margin and cost.
True water volume from your tank's dimensions, plus filled weight, heater wattage, substrate amount, and water change volumes.
Baker's percentages that correctly count the flour and water inside your starter, for any loaf size and hydration.