This calculator is intended to be used only as a general tool to estimate potential splits and payments. Ohio does not use a specific mathematical formula to calculate alimony.However, this calculator offers an estimate of a potential alimony award in Ohio. This California alimony calculator calculates California maintenance using the California county alimony formulas. Calculate alimony quickly and accurately with our state-specific alimony calculators. Get an estimate based on your state's guidelines for free. First, you must enter the spouses' gross incomes. Enter the gross incomes into the appropriate inputs in the California Maintenance Calculator form. Our alimony calculator will provide you with a basic support calculation for the following states or formulas. All alimony in California is based on one spouse's need for support and the other spouse's ability to pay.