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. You can choose to make your payment in whatever way is most convenient for you.If you are preparing for a divorce, here is a brief overview of the laws that apply to calculating child support and spousal support in Ohio. Don't navigate this complex process alone—contact Arizona Law Group today for expert legal guidance and to secure the financial support your child deserves. Learn how Ohio judges decide whether to award spousal support, how much payments will be, how long they'll last, and when alimony can change or end. Complete one of the following application forms: Follow the instructions on the application and provide as much information and as many documents as possible. Figuring out the right amount of child support payments you are obligated to make and negotiating with the other party can be complicated undertakings. The termination of alimony is a substantial change in circumstances warranting the modification of child support. Where the children will live and how often and how long they will stay with the other parent.