Collaborators
CalcuTotal is built by engineers, reviewed by subject-matter experts, and maintained by people who believe accurate math should be free.
Every calculator on this platform passes through a multi-step review process before it reaches you. We combine engineering precision with domain expertise to deliver tools you can trust.
Meet the collaborators
The specialists who build, verify, and maintain your calculators.
Sarah K.
Product Lead & Math Calculators
Sarah oversees product design and creates calculators for mathematics and general computation. With a background in applied mathematics and educational technology, she focuses on making complex formulas accessible through clear interfaces and step-by-step explanations.
David L.
Engineering Lead & Physics Calculators
David handles technical infrastructure and develops physics and engineering calculators. With expertise in computational physics and numerical methods, David ensures calculations handle edge cases correctly and use proper unit conversions.
Maya P.
Chemistry & Biology Calculators
Maya creates calculators for chemistry and biological sciences. With a background in laboratory sciences and data analysis, Maya validates formulas against peer-reviewed sources and includes proper safety guidance and dosing references.
James W.
Business & Analytics Calculators
James develops business and analytics calculators. With experience in data analysis and operations, James creates tools that mirror real-world workflows—comparisons, projections, and business metrics.
Nicole H.
Measurement & Everyday Calculators
Nicole builds measurement and everyday calculators. With a background in biostatistics and applied science, Nicole ensures calculators use validated formulas and include appropriate references.
Marcus T.
Content & Documentation Lead
Marcus creates methodology explanations and educational content across all calculator categories. With expertise in technical writing and science communication, Marcus translates complex formulas into understandable documentation.
What drives us
The principles behind every calculator we publish.
Accuracy first
Every formula is sourced from textbooks, professional standards, or peer-reviewed research. We cite our sources.
Transparency always
We show the formula on every calculator. You should never have to trust a black box.
Free for everyone
Quality math tools should not be locked behind paywalls. Every calculator is free, forever.
Honest disclaimers
We clearly state when a calculator is for informational use only and should not replace professional advice.
Our review process
How every calculator goes from idea to publication.
Research
We identify the standard formula from authoritative references (textbooks, government agencies, professional bodies).
Implementation
An engineer builds the calculator and writes automated tests against known correct results.
Expert review
A subject-matter expert reviews the formula, edge cases, and explanatory content for accuracy.
Publication
The calculator goes live with visible formulas, worked examples, methodology explanations, and appropriate disclaimers.
Ongoing monitoring
We monitor user feedback and periodically re-verify formulas. Errors are fixed within 24 hours of discovery.
Help us improve
Found an error in a formula? Have expertise in a field we cover? We welcome corrections and contributions from qualified professionals.
Every correction we receive is reviewed within 24 hours. If you provide a source, we’ll credit you on the calculator page.