Currently, there are six guideline child support calculators certified for use in California court proceedings. This California alimony calculator calculates California maintenance using the California county alimony formulas.Calculate spousal or domestic partner support; Figure out how long the support may last and how it may affect your taxes; Prepare court forms. Our free California spousal support calculator helps you easily estimate your potential spousal support payments. Quick, easy, and accurate. Maintenance, or spousal support, is crucial when major life changes occur within family dynamics. Use our California maintenance calculator. At the bottom of the input screen of the free calculator, there's a very small box to check for temporary spousal support. The Geller Firm can calculate, negotiate, and settle your spousal support dispute under California law. The DissoMaster(TM) is a program in the state of California used to accurately calculate child and spousal support payments after a divorce or legal separation.