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Fiverr Pro
English
$
USD
I will build a custom web calculator
Oleksandr H
About this gig
I will build a custom web calculator for your website pricing, quote, cost, ROI, estimate, or any calculation based on your business logic. Built using React for smooth, instant calculations.
What you get:
- Responsive calculator UI (mobile + desktop)
- Interactive live demo to test before approving final delivery
- Full source code + short setup guide
- Simple integration instructions for your website
- 7 days of post-delivery support for bug fixes
Before you order, please have ready:
- The fields/inputs you need (e.g., square footage, number of users, product type)
- One example calculation, worked out by hand
- Any optional requirements (e.g., email submissions, PDF export, saved history)
Don't have this finalized yet? That's fine send me a message first or check the FAQ below.
How it works:
Send me your business logic I build and host a live demo You test the demo You approve or request revisions within your package.
Get to know Oleksandr H
Oleksandr H
Software Engineer
- FromUkraine
- Member sinceJun 2026
Languages
English, Ukrainian, German, Japanese, Spanish, French, Italian, Korean, Portuguese, Dutch
I am a Computer Engineering student with experience in embedded systems and full-stack web development. I have worked in team-based environments applying Agile/Scrum workflows and version control. My focus includes implementing software features, hardware-software interaction, and collaborative engineering.
My Portfolio
FAQ
I don't have my exact calculation logic finalized yet — can you help?
Yes. Send me a rough description of what you're trying to calculate and I'll help turn it into clear logic before we start building. For larger, ambiguous projects (Premium-tier), this may involve a short paid discovery step to lock scope before I quote a final price.
Do I get the source code?
Yes, full source code and a short setup guide are included. Embedding into an existing site (WordPress/Webflow/etc.) may need a short compatibility check first — see below.
Can you match my existing website's design?
Yes — send your brand colors or a reference site and I'll style the tool to match, fully responsive on mobile and desktop.
What counts as a revision?
Changing a value, rate, or existing calculation = revision. Adding a new calculation, workflow, or field beyond what was scoped = new scope, quoted separately.
Can this run on WordPress/Webflow/my existing site?
The tool is built in React with integration instructions included. Message me your platform first and I'll confirm the exact embed method before you order.
What if my project needs more fields/steps than the package limit?
Message me your requirements before ordering — I'll recommend the right package or a custom quote.
What happens if something breaks after delivery?
You get 7 days of support after final delivery for bug fixes at no extra cost.
