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Fiverr Pro
English
$
USD
I will custom interactive calculators and financial web tools
Eva P
About this gig
I build clean, mobile-first interactive calculators that help businesses convert visitors into leads. Whether you need a DSCR loan calculator, mortgage tool, ROI calculator, or any custom financial tool, I deliver fast-loading, accurate, and professional results using pure HTML, CSS, and JavaScript no heavy frameworks.
You get a fully responsive tool that works perfectly on phones, tablets, and desktops, with clear results, professional design, and source code ownership. Ideal for real estate lenders, financial advisors, and SaaS platforms looking for high-converting calculators.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Eva P
Eva P
Startup Advisor, Crossborder Business Consultant, Risk and Compliance Strategist
- FromUnited States
- Member sinceJul 2026
Languages
English, Hungarian, German
I am a strategic finance and legal professional with 15+ years of international experience across investment advisory, corporate governance, tax and business strategy. I specialize in analyzing complex financial and regulatory scenarios to support executive decision-making and evaluate business risk in dynamic environments.
My Portfolio
FAQ
What do I need to provide to get started?
Just tell me the type of calculator, the input fields, and the results you want shown. Design references are optional.
Do I get the source code?
Ys. You receive full ownership of the HTML, CSS, and JavaScript files.
Will the calculator work on mobile?
Yes. Every calculator is built mobile-first and works on phones, tablets, and desktops.
Can you add extra features later?
Yes. Extra formulas, tabs, dark mode, or design changes can be added as extras.
How accurate are the calculations?
I use tested financial formulas. Final numbers are based on the formulas and inputs you approve.
