Child Support Calculator
Get a generic income-shares estimate of monthly child support from both parents’ incomes, the number of children, and parenting time. Calculates in your browser.
Estimated monthly support
-
Show the math
An income-shares model splits a combined obligation by income:
obligation = combined income × schedule %
support = payor share × (1 − overnight %)
Highly generic estimate. Every state has its own guideline schedule, add-ons (health care, child care), and parenting-time formula. Use your state's official calculator or an attorney for real figures. All math runs locally in your browser.
What this does
A child support calculator gives a generic income-shares estimate of monthly child support from both parents’ incomes, the number of children, and parenting time.
How it works
An income-shares model sets a combined obligation as a percentage of both parents’ income, splits it by each parent’s share of that income, then adjusts for overnight parenting time.
How to use it
- Enter both parents’ monthly incomes.
- Enter the number of children.
- Enter the parenting-time split.
- Read the estimated monthly support.
Understanding your result
This is a rough estimate only. Every state has its own guideline schedule and add-ons (health care, daycare), so use your state’s official calculator for real figures.
Example
With a $4,000 and $2,000 monthly split for two children, the higher earner typically pays a few hundred dollars after the parenting-time adjustment.
Sources & methodology
- Office of Child Support Services (HHS/ACF), How child support guidelines work
Last updated .
Frequently asked questions
How is child support estimated?
An income-shares model sets a combined obligation as a percentage of both parents’ income, splits it by each parent’s share, then adjusts for overnight parenting time.
Is this my state’s actual amount?
No. Every state has its own guideline schedule and add-ons, so this is only a rough estimate. Use your state’s official calculator for real figures.
Does it include health care or daycare?
No. This is a base estimate only; courts add those costs on top.
Is my data kept?
No. Everything is computed locally in your browser.
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