The following calculator provides an estimate of a potential alimony award in the State of Ohio. The Ohio Child Support Calculator will provide an estimate of the support obligations that may be included in a court or administrative child support order.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.) This Ohio Child Support Calculator is provided for informational use. Ohio doesn't have a formula for calculating spousal support or even determining who's entitled to receive it. The goal of this video is to do a spousal support calculation quickly and professionally so that you'll be better able to evaluate your client's interests. Our tool will calculate how much spousal support a judge may order. Complete the fields to calculate and estimate. Ohio does not use a specific mathematical formula to calculate alimony.