What's included
Reduction in
manual workflow load
What's included
Why Use
a Family Law Calculator
Most people walking into a divorce or custody dispute have no idea what child support they’ll pay, how long alimony might last, or what a divorce actually costs in their state. That uncertainty leads to bad decisions, missed negotiation opportunities, and legal fees that spiral out of control.
Our calculators exist to give you the answer in 30 seconds — the same estimate a lawyer would give you after billing an initial consultation. Use it to walk in prepared, negotiate confidently, and know what “fair” looks like before anyone else defines it for you.
BROWSE BY CATEGORY
All 7 Family Law Calculators
All 65+ tools organized into 12 legal categories. Choose any category to browse every calculator inside.
Child Support Calculator
Estimate monthly child support based on both parents’ income, custody split, and state guidelines. Supports Income Shares (41 states) and Percentage of Income (9 states) models.
Alimony (Spousal Support) Calculator
Estimate spousal maintenance amount and duration based on income, length of marriage, and state formula. Includes rehabilitative, durational, and permanent alimony types.
Divorce Cost Calculator
Estimate the total cost of your divorce — attorney fees, filing fees, mediation, expert witnesses. Compare contested vs uncontested divorce costs by state.
Divorce Settlement Calculator
Estimate how marital assets, debts, and property may be divided between spouses under community property or equitable distribution rules.Estimate how marital assets, debts, and property may be divided between spouses under community property or equitable distribution rules.
Custody Time-Share Calculator
Convert any parenting schedule into precise custody percentages and annual overnight counts — the number your state uses to calculate child support.
Prenuptial Agreement Cost Estimator
See average attorney fees to draft and review a prenup in your state, plus a checklist of what a good prenup should cover.See average attorney fees to draft and review a prenup in your state, plus a checklist of what a good prenup should cover.
How we work
How Our Family Law Calculators Work
Three steps. Zero friction. Sub: Every family law calculator on Legal Sparrow Cloud works the same way — instantly, in your browser, with no signup.
Choose your state & inputs
Pick your state (or country), then enter income, marriage length, and any relevant financial figures. Every calculator adapts to your jurisdiction’s actual formula.
See your estimate in real time
Results update as you type. Adjust variables — income, custody split, marriage length — and watch numbers change instantly. No submit button, no page reload.
Print, share, or plan next steps
Download a print-friendly worksheet, save the URL to share with your attorney, or click through to related calculators (settlement, custody, cost) to build your full picture.
What clients say
Lena Petrova
“I started with the free tools here, then upgraded my firm to Legal Sparrow’s AI suite. Best legal-tech decision we made this year.”
Marcus Bell
“I send junior associates to this site every week. The citation formatter alone is worth its weight in gold and it’s completely free.”
Marcia Solis
“Finally, a free legal tools site that doesn’t compromise on quality. The document templates are genuinely lawyer-drafted, not generic.”
David Okonkwo
“As a solo, I can’t subscribe to ten different SaaS tools. Legal Sparrow Cloud covers 80% of my routine work free. Game-changer.”
FAQ
Common questions
Everything you need to know about Legal Sparrow Cloud’s free legal tools.
Are these legal tools really free?
Yes — 100% free, forever. No credit card, no signup, no hidden charges. Legal Sparrow Cloud exists to give back to the legal community.
Do I need to create an account to use the tools?
No. Every tool on Legal Sparrow Cloud works directly in your browser. You can start using them right now with zero registration.
How is Legal Sparrow Cloud different from Legal Sparrow (.com)?
Legal Sparrow Cloud offers free general-purpose legal utilities — calculators, generators, lookups, and templates. Legal Sparrow is our premium AI suite built for deep legal research, document analysis, and drafting at scale. Think of Cloud as the toolbox; Legal Sparrow .com as the full workshop.
Are these tools jurisdiction-specific?
Many of our tools support multiple jurisdictions and let you select yours before generating results. Always verify outputs against your local rules — these tools assist, but don’t replace professional legal judgment.
Is my data safe when I use these tools?
Absolutely. We use a privacy-first design — your inputs are processed in your browser session and never stored, shared, or used for training. No logs, no profiles, no tracking.
Can I use the output in actual legal practice?
Yes, our tools produce professional-grade output meant to assist qualified lawyers. However, every output should be reviewed and adapted to your case’s specific facts and jurisdiction. Legal Sparrow Cloud is a productivity assistant, not a substitute for legal advice.
How often are the tools updated?
We continuously update tools to reflect changes in statutes, court fees, limitation periods, and procedural rules. If you spot an outdated reference, please let us know.
Can I suggest a new tool?
Please do. The fastest way to get a tool built is to request it — fill out the form above and tell us what your practice needs. Frequently requested tools are prioritized and released free.