Free family law calculators for United States: Child support, spousal support, divorce and separation calculators. Get instant estimates using current United States legal rules — no signup, private in your browser, and free to embed on your site.
Own a law firm, legal website, blog, or resource site? You can embed any of these calculators directly on your website for free. No signup required. Choose a calculator below and click Embed on Your Website to copy the embed code.
Lexscale.ai offers 35 free family law calculators for United States — part of the largest free legal-calculator library in North America, with 400+ tools across 23 practice areas, every one available in Canadian and US versions. Each family law calculator gives an instant, private estimate using current United States statutory rates and standard legal formulas, with no signup and nothing sent to a server.
Our family law calculators use up-to-date statutory rates, provincial and state data, and the same formulas lawyers and courts rely on. They are designed for planning and research — actual outcomes depend on your specific facts, jurisdiction, and judicial or agency discretion. Rates are reviewed and updated as laws change. For decisions that matter, confirm the numbers with a licensed lawyer.
Legal rules differ sharply between the two countries, so every family law calculator is built in a Canadian version (using provincial rules) and a US version (using state-level rules). You are viewing the United States edition; switch countries any time from the calculator hub.
Law firms and legal sites can embed any of these family law calculators free — each has a one-click embed that drops an interactive widget onto your own site, with a "Powered by Lexscale.ai" link and no API key required.
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