The Payment Estimator applies the statewide uniform guideline calculation to the information that you enter into the blank fields. See how parenting time affects the total.Complete the fields below and press calculate to estimate alimony. The figures presented are based on legal California alimony guidelines. Maintenance, or spousal support, is crucial when major life changes occur within family dynamics. Use our California maintenance calculator. We provide a calculation printout that can be used to help formulate sums for child support, temporary spousal support while the divorce case is active. To estimate the amount of child support that may be ordered in your case, you can use the state's official Child Support Guideline Calculator. If you are facing a child support case, don't hesitate. Estimate your spousal and child support, and division of assets and debts.