This California alimony calculator calculates California maintenance using the California county alimony formulas. The Utah Alimony Calculator is designed to offer estimations based on various input factors, such as income, length of marriage, and specific circumstances.Learn how alimony is calculated in Utah, what judges consider when deciding spousal support awards, and how to get alimony payments changed. Complete the fields below and press calculate to estimate alimony. The figures presented are based on legal California alimony guidelines. The following calculator provides an estimate of a potential alimony award in the State of Utah. MaritalLaws Alimony Calculator. Gross Salary: Salary before taxes are taken out. California doesn't use a "calculator" for determining the amount of long-term spousal support. Alimony, sometimes referred to as spousal support, is the court-ordered money that one party pays to the other party for support while they are separated.