See how parenting time affects the total. No information is available for this page.You can use the official Michigan Child Support Calculator to calculate the amount of support under Michigan's current child support guidelines. (2) When some of the children-in-common are in a nonparent's custody, calculate the base support for the children in a parent's custody separately from the base. The following calculator provides an estimate of a potential alimony award in the State of Michigan. While child support is calculated using a formula, spousal support (alimony) is decided on a case-by-case basis. A formula guideline for figuring child support obligation amounts. Our tool will calculate how much spousal support a judge may order. Complete the fields to calculate and estimate. Learn about Michigan child support calculations with Vantage Group Legal Services, guiding you through the process with clarity and support.