About ChildSupportCalculators.app

Our Mission

ChildSupportCalculators.app was built to give parents access to clear, accurate information about child support, alimony, divorce asset division, custody time, and parenting plan costs — all in one place, completely free, and without requiring any personal information.

Navigating family law is one of the most stressful experiences anyone can face. Parents deserve to understand how the financial and legal systems that govern their lives actually work — not just hear conclusions from attorneys billing by the hour. Our calculators help you walk into those conversations informed.

What We Offer

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  Child Support Calculator: Covers all 50 states including Income Shares, Percentage of Income, and Melson Formula models. State-specific pages for every state.
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  Alimony Calculator: Spousal support estimates with state-specific formulas for NY, IL, TX, CO, MA, and general guidelines for all other states.
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  Divorce Settlement Calculator: Asset division estimates covering community property and equitable distribution states.
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  Custody Time Calculator: Parenting time percentage from overnights or weekly schedule, with custody classification and child support impact.
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  Modification Calculator: Whether your changed circumstances meet the 15% threshold for child support modification.
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  Parenting Plan Calculator: True cost of your parenting plan including transportation, activities, and medical expenses.

Privacy First

All calculations happen entirely in your browser. We never transmit your income, custody, or financial information to any server. Your data stays on your device. We use localStorage to save your inputs between sessions so you do not have to re-enter information — this data never leaves your browser.

We do use Google Analytics to understand how people use the site (pages visited, not personal information) and Google AdSense to display advertisements that help keep the site free. See our Privacy Policy for details.

Accuracy and Limitations

Our calculators are based on published state guidelines, widely-used formulas, and established family law principles. However, child support and family law calculations involve judicial discretion, local rules, and case-specific facts that no calculator can fully capture. Our results are estimates — useful for understanding the range of outcomes and preparing for attorney consultations, not for predicting exact court outcomes.

We update our calculators annually to reflect changes in state guidelines, IRS mileage rates, and other relevant figures. If you notice an error or outdated information, please contact us.

Contact

Questions, corrections, or feedback? We review every message. Use the contact link in the footer to reach us.