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Divorce › Child support calculator

Free child support calculator (all 50 states)

Estimate child support in your state. Pick your state, enter both incomes and the number of children, and get an instant estimate — free, from attorneys.

How child support works

Every state sets child support by guideline, but the math differs. Most states use an income-shares model (both parents’ incomes combined, then split by share). A few use a percentage of the paying parent’s income (New York, Texas, Wisconsin, Alaska, Mississippi). Three states (Delaware, Hawaii, Montana) use the Melson formula. Pick your state above for its specific rule and a link to the full guide.

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These are estimates using each state’s published guidelines — not legal advice, and not a promise of what a court will order. LawCat is not a law firm.