About TheLegalCalc
Last Updated: August 2026
Adriano Lourenço Filho
Founder · Adriano Lourenço Filho · CRA-ES 31269 · UFES, Brazil
TheLegalCalc was founded in 2025 by Adriano Lourenço Filho to build free calculation tools for legal-financial estimates. Adriano is a registered business administrator (CRA-ES No. 31269, Federal University of Espírito Santo, Brazil) and a tool builder focused on legal-financial calculation methodology — not a U.S. attorney.
The same systematic approach used in financial modeling — identifying variables, sourcing primary data, and building transparent calculation frameworks — drives every tool on this site. We translate publicly available state rules into accessible estimation tools so people can see the math before consulting an attorney.
LinkedIn ProfileWhat TheLegalCalc Is
A platform of calculation tools for legal-financial estimates. Every tool shows its formula, cites its source, and explains its limitations.
What TheLegalCalc Is Not
A law firm. A legal advice service. A substitute for an attorney. Results are estimates — not court calculations, not legal opinions.
Every page on this site carries a clear disclaimer for this reason. Legal decisions have real consequences. Our job is to show the math clearly, not to give a final answer.
Why TheLegalCalc
TheLegalCalc was built to make legal-financial formulas accessible. Every calculator on this site is built around a specific state statute or published guideline. We cite the source. We show the formula. We explain the limitations. We update when laws change.
We are not a law firm. We do not provide legal advice. We provide the math — so you can have an informed conversation with your attorney.
Data Accuracy
Data accuracy: calculator rates and legal thresholds are verified against official state and federal sources. When we find an error, we correct it within 2 business days. Last data review: August 2026.
How We Research Every Calculator
Primary sources only
Every calculator cites the governing statute for that state and calculation type — not a legal blog, not a secondary summary. We link to the relevant code section on each page so you can verify the source yourself.
State by state
U.S. law varies dramatically by state. We research each state independently using official legislature websites, court publications, and agency guidance documents. California and Texas child support, for example, use fundamentally different models — and we treat them that way.
Updated when law changes
State laws change. When a legislature updates its guidelines — like California's SB 343 in 2024, which overhauled the child support K-factor formula — we update the calculator and document what changed and when.
Transparent limitations
When a calculation requires a simplification or a national model in place of a state-specific worksheet, we say so on the page. Our tools are planning estimates. We do not overstate their precision.
Why We Built This
The U.S. legal tools market has a real gap at the intersection of accessibility and accuracy. Most free tools are generic. Most accurate tools are paid or require an attorney. Most explanations assume legal literacy that most people don't have.
TheLegalCalc was built on a simple thesis: if you give people accurate information in plain language, with the sources visible and the limitations clear, they make better decisions — and they arrive at attorney consultations better prepared.
We are an independent platform. We have no affiliation with any law firm, legal services company, or government agency. TheLegalCalc is free to use. We do not charge users for any calculator or guide. Our editorial conclusions are independent of any commercial relationships.
Contact & Transparency
If you find an error in our legal interpretation or a formula that no longer reflects your state's current guidelines, we want to know.
Email: contact.thelegalcalc@gmail.com
Calculators and articles are reviewed when state law changes and at least annually. Confirmed errors are corrected within 2 business days of being reported.
When a significant error is found and corrected, we update the "Last reviewed" date on the affected page.
We do not accept paid placements, sponsored content, or affiliate arrangements that influence our calculator formulas or editorial conclusions.