This calculation is for information purposes only and is not intended as a substitute for obtaining legal advice! This Virginia alimony calculator calculates Virginia maintenance using the Fairfax County alimony formula.Calculating Debt Payoff. If you have unpaid child support debt, you can figure out how long it will take to pay it off with our Arrears Payoff Calculator. Our tool will calculate how much spousal support a judge may order. Complete the fields to calculate and estimate. This California alimony calculator calculates California maintenance using the California county alimony formulas. Complete the fields below and press calculate to estimate alimony. The figures presented are based on legal California alimony guidelines. Learn the taxable benefits of a California family support order and its advantages and disadvantages when calculating child and spousal support.