The following calculator provides an estimate of a potential alimony award in the State of Maryland. Estimate Alimony Payments.This calculator is intended only to give a general idea of spousal maintenance calculations. Learn about the types of alimony available in Maryland, how it's calculated, and the factors courts consider when awarding spousal support. Illinois uses a formula outlined in the Illinois Marriage and Dissolution of Marriage Act to calculate spousal maintenance. This calculator is intended to be used only as a general tool to estimate potential splits and payments. Illinois uses a formula outlined in the Illinois Marriage and Dissolution of Marriage Act to calculate spousal maintenance. A Maryland alimony calculator is a tool that can be used to estimate the amount and duration of alimony that may be awarded in a divorce case in Maryland. , your trusted Chicago divorce attorney. Alimony Calculator Illinois: Estimate your spousal support obligations and entitlements accurately.