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I will build a custom HTML calculator and web tool to capture leads
Sam
About this gig
Turn your website traffic into captured leads.
A standard web calculator just does math. I build custom-coded "Intelligence Layers"interactive HTML/JS digital tools designed specifically to capture high-intent leads and wire them directly into your CRM.
Whether you need a Material Estimator, an ROI Analyzer, or a custom Pricing Tool, I build digital assets that provide massive upfront value, prompting users to trade their contact info for the final results for any industry or product.
What I Build For You:
- Custom HTML/CSS/JS: Complex logic built from scratch. Zero plugins. Embeddable on any platform (GHL, WordPress, Shopify, Wix, etc, or any custom website).
- Lead Capture Triggers: Strategic name/email/phone & more gates built seamlessly into the result calculations.
- API/Webhooks: Push new leads instantly into GoHighLevel or other CRMs.
- Responsive UI/UX: Clean, conversion-optimized design that matches your brand. We can make any shape, style, look or feel.
Message me your idea of your calculator concept or Excel formulas, and let's build your web calculator lead engine.
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 Sam
Sam
Your Tech Partner: Websites, Software Systems for Small Business
- FromUnited States
- Member sinceAug 2020
- Avg. response time1 hour
Languages
English
Running a business is hard enough. I help owners scale by replacing broken tech with clean, bulletproof architecture.
As the founder of 12 Crowns, I build high-fidelity digital products that capture leads and drive revenue. I don't patch code; I repair it permanently.
What I Build:
• Web Calculators: Dynamic quote engines & custom UI/UX.
• GoHighLevel (GHL): Sales funnels, AI agents, & CRM workflows.
• Web Apps: Multi-step surveys & premium landing pages.
Guarantee: If I cannot build or fix it perfectly, you don't pay me. Let's get to work.
My Portfolio
FAQ
Can I embed this custom calculator on my WordPress, Wix, Shopify or any website?
Yes. I provide clean, custom HTML/CSS/JS code that can be easily embedded into any website builder, including but not limited to WordPress, Shopify, Wix, Squarespace, and GoHighLevel.
How does the custom calculator capture leads?
I build a "lead gate" into the web tool. Users input their data, but must enter their email or phone number to unlock the final calculation or capture it after the calculation is done. This turns your calculator into an automated lead generation machine.
Can you send the captured leads directly to my CRM or GoHighLevel?
Absolutely. With the Premium package, I use webhooks and APIs to push the captured lead data instantly into your GoHighLevel pipeline, ActiveCampaign, or other CRM platforms.
What if my calculator formulas are highly complex?
I specialize in complex JavaScript logic. Send me your custom formulas in an Excel spreadsheet, Google Sheet, or just explain the math and or idea, and I will code the exact logic.
Will the web tool match my brand's design?
Yes. I custom code the CSS to match your exact brand colors, fonts, and UI/UX aesthetic so it looks like a premium, native feature on your site.
Do I need a specific plugin for this to work?
No. Bulky plugins slow down your site. I write pure, lightweight HTML, CSS, and JS to ensure lightning-fast load times and perfect SEO performance.
