The following calculator provides an estimate of a potential alimony award in the State of Ohio. Ohio does not use a specific mathematical formula to calculate alimony.However, this calculator offers an estimate of a potential alimony award in Ohio. No formula under Ohio law specifies how spousal support is calculated. (However, some courts offer guidelines that will at least get you in a ballpark.) Ohio doesn't have a formula for calculating spousal support or even determining who's entitled to receive it. Ohio Spousal Support Calculator is an inexpensive first step in advocating your client's position and fulfilling your professional obligations. Spousal support is born out of the contract of marriage. Alimony calculations in Ohio (OH) involve specific laws and various factors that influence the final determination. Understanding both state-specific.