Ohio doesn't have a formula for calculating spousal support or even determining who's entitled to receive it. Worksheets to calculate guideline amounts of maintenance and child support.Optional tools to help with calculations are below. For guidance in using this calculator, please see the JFS 07766 Ohio Child Support Guideline Manual. 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.) Specific factors are determined in calculating spousal support in New York including income of both parties and the duration of marriage. Spousal support is born out of the contract of marriage. The following calculator provides an estimate of a potential alimony award in the State of Ohio. Ohio Spousal Support Calculator is an inexpensive first step in advocating your client's position and fulfilling your professional obligations.