Our North Carolina Child Support Calculator will automatically calculate your standard child support and allow you to download it in pdf format. There isn't a specific formula for calculating alimony in North Carolina, and the calculator above should be considered a rough estimate.This calculator determines the value of child support to be paid based on income, days the children spend in your custody, and other child-related expenses. Use this worksheet when one parent (or a third party) has primary physical custody of all of the children for whom support is being determined. North Carolina doesn't provide a formula for calculating postseparation support or alimony. Our alimony calculator will provide you with a basic support calculation for the following states or formulas. This calculation is based on North Carolina Child Support Guidelines and will calculate child support based on a primary, shared or split custody arrangement. The NC child support calculator is another resource intended to help parents determine how much money they will pay in monthly child support. North Carolina does not have a calculator to determine spousal support like they have for child support. Results vary from county to county, and judge to judge.