I will build a custom ROI calculator that captures leads

V
vivianthf
V
vivianthf
VivianT

Level 1

build a custom ROI calculator that captures leads
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build a custom ROI calculator that captures leads
Full Screen
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build a custom ROI calculator that captures leadsbuild a custom ROI calculator that captures leadsbuild a custom ROI calculator that captures leads

About this gig

Need a calculator on your website that actually converts visitors into leads?


I build custom ROI, savings, and pricing calculators from scratch not templates, not plugins. Each one is hand-coded in HTML/JS, works on any website (WordPress, Squarespace, Wix, Webflow, custom), and loads fast with zero dependencies.


What makes these different:

- Built-in email capture that sends results + lead info to your inbox

- Mobile-responsive, matches your brand colors and fonts

- Embeds with a single line of code no dev needed on your end

- PDF result export so prospects keep your numbers on file


I've built calculators for title insurance companies, financial services, cleaning businesses, and SaaS each one designed around the specific logic your industry needs.


Every delivery includes the source code (you own it), a live hosted demo, and embed instructions. I stick around after delivery to make sure it works on your site.


Industries I've built for: insurance, finance, solar, real estate, SaaS, trades, agencies. If your business has numbers, I can turn them into a tool that sells for you.


Message me your idea and I'll send you a working concept within 24 hours.

  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Design
    • Databases

  • Frontend framework

    • Next.js
    • React.js
    • Tailwind CSS

  • Backend framework

    • Node.js

  • AI & low/no code builders

    • Lovable
    • Claude
    • Firebase Studio
    • Replit

Get to know VivianT

VivianT

Custom Web Calculator n Interactive Tool Developer

5.0(2)

Level 1

  • FromMalaysia
  • Member sinceJun 2015
  • Avg. response time1 hour
  • Last delivery1 month

  • Languages

    English, Chinese
Full-stack developer specializing in custom web calculators built with React and JavaScript. I turn spreadsheets, pricing logic, and formulas into clean, embeddable tools that work on ANY website — Shopify, Webflow, Squarespace, Wix, WordPress, or custom sites. No plugins. No WordPress dependency. Every calculator is mobile-responsive, branded to match your site, and comes with a one-line embed code. I host it for you — you just paste and go. Let's build something great together.

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