I will build a custom HTML business tool or calculator


About this gig
Losing website visitors because they can't quickly figure out pricing, ROI, or what they need? A custom-built calculator or business tool keeps them engaged and turns them into leads automatically, 24/7.
I build custom HTML, CSS, and JavaScript tools tailored to your exact business logic no clunky plugins, no bloated page-builder widgets, just clean, fast code that works.
What I can build:
- Pricing & quote estimators
- ROI, loan, or financial calculators
- Cost/tax/discount calculators
- Custom business logic tools (your formula, your rules)
- Lead-capture forms built into the results
What you get:
- Fully responsive design (mobile, tablet, desktop)
- Clean, well-tested code with your formula built in
- Easy to embed into WordPress, Wix, Shopify, or any custom website
- Source code included full ownership, no ongoing fees
With a background in WordPress, custom HTML, and graphic design, I can also make sure the tool matches your brand's look, not just its math.
Message me your formula or idea before ordering even rough notes work and I'll help you scope the right package.
Get to know Asia Rizwan
WordPress Developer more than 10 years and Website Designer
- FromPakistan
- Member sinceAug 2026
- Avg. response time1 hour
Languages
Urdu, English
My Portfolio
FAQ
What information do you need from me to get started?
Just your formula or the logic behind the calculation (even rough notes or an Excel sheet work fine), and which platform you'll embed it on (WordPress, Wix, Shopify, or custom HTML site).
Will the tool work on my WordPress/Wix/Shopify site?
Yes, I deliver clean, standalone HTML/CSS/JavaScript code that can be copy-pasted into any website builder, including WordPress custom HTML blocks, Wix embeds, or Shopify sections.
Do I need a database or backend for this?
Not for most calculators and tools, they run entirely in the browser, so there are no hosting costs or backend setup required. If your project does need data storage or a backend, message me first so I can scope it properly.
Can you build more complex, multi-step tools?
Yes, multi-input calculators with conditional logic, sliders, dropdowns, and step-based results are available on the Standard and Premium packages.
Do I get the full source code?
Yes, every package includes complete source code with full ownership once the project is delivered.
Can you match the tool's design to my website's branding?
Yes, design customization is included from the Standard package up, so the tool's colors, fonts, and layout can match your existing site.

