How to Add a Quote Calculator to Wix in 2026

Wix has a built-in HTML Embed widget — and that's your ticket to adding a professional quote calculator to your site without touching a line of code. Whether you're a tradie, a service business, or anyone who wants to capture leads on autopilot, this guide walks you through the entire process in under five minutes.

The catch with Wix's iframe embed is that a few things can trip you up: height settings, mobile responsiveness, and HTTPS requirements. We'll cover all of it — including why a purpose-built calculator like Leadkit captures far more leads than Wix Forms ever will.

Last updated: May 2026.

Key takeaways

• Wix's HTML Embed element (Add Element → Embed Code → HTML iframe) is the correct tool for adding a third-party calculator.
• You must use an HTTPS embed URL — HTTP sources are blocked by Wix and will show as blank.
• Set a fixed height on the iframe element (400–600px is typical); Wix does not auto-resize iframes by default.
• Wix Studio handles mobile layout better than the classic editor — stretch the element to full column width.
• Leadkit calculators capture the visitor's name, email, and phone before showing the full estimate — Wix Forms can't do this.

Table of contents

1. What you need before you start
2. Step-by-step: Wix Editor (classic)
3. Step-by-step: Wix Studio / Editor X
4. Mobile responsiveness on Wix
5. Common issues and fixes
6. Why Leadkit beats Wix Forms for lead capture
7. Free vs Pro plan
8. FAQ
9. Final CTA

1. What you need before you start

Before you open Wix, have these ready:

• A Leadkit account — free to sign up at leadkit.com.au/calculators. You can be live with your first calculator in under 60 seconds.
• Your calculator's embed code — once you've built your calculator in Leadkit, go to the Share or Embed screen and copy the HTML snippet. It will look like an <iframe> tag with an https:// source URL.
• A Wix Premium plan — Wix's free plan blocks external embed code on published sites. You need at least a Basic Premium plan for the embed to go live for visitors.
• Your Wix login — obvious, but worth confirming you have Editor access and not just Contributor access.

One important technical note: Leadkit calculator URLs always use HTTPS. This matters because Wix enforces mixed-content rules — if you try to embed an HTTP source in a Wix page served over HTTPS, the element will show as blank. Leadkit handles this automatically, so you won't hit that issue.

2. Step-by-step: Wix Editor (classic)

This is the original Wix drag-and-drop editor, still used by the majority of Wix sites.

1. Log in to Wix and open your site in the Editor.
2. In the left-hand panel, click the "+" (Add Element) button.
3. Navigate to Embed Code → Embed a Widget → HTML iframe.
4. A grey placeholder element will appear on your page. Click it to select it, then click "Enter Code" in the settings panel that pops up.
5. Paste your Leadkit embed code into the code field. It should be the full <iframe> snippet from your Leadkit dashboard.
6. Click "Apply" or "Update". The element will attempt to load the calculator inside the editor — you may see a preview warning ("External code is only visible in Preview mode"), which is normal.
7. Resize the element by dragging the bottom handle downward. A height of around 500–600px works for most Leadkit calculators. If the height is too small, visitors will see scroll bars inside the calculator frame — not a good look.
8. Position the element on the page where you want it. Above the fold on a services page or a dedicated "Get a Quote" page both work well.
9. Click "Preview" to test it in your browser, then click "Publish" when you're happy.

Tip: Don't test the live lead capture inside the Wix Editor view — Wix sandboxes external code in the editor environment. Always use Preview or the published live URL to confirm leads are flowing through.

3. Step-by-step: Wix Studio / Editor X

Wix Studio (formerly Editor X) is Wix's more advanced editor aimed at professional designers. It offers better layout control, which makes iframe embeds easier to manage — especially for mobile.

The steps are slightly different:

1. Open your site in Wix Studio.
2. Click "Add Elements" from the left panel (the "+" icon).
3. Select "Embed & Social" → "HTML iFrame". (In Studio, the path is slightly reorganised compared to the classic editor.)
4. The HTML iFrame element appears on the canvas. Click it, then select "Enter Code" from the element settings.
5. Paste your Leadkit embed code and click "Apply".
6. In Wix Studio, you can use responsive layout columns. Select the element and use the "Stretch" option to make it fill the full column width. This is a key difference from the classic editor — Studio's responsive grid handles width automatically once you stretch the element into the column.
7. Set the height manually. Wix Studio still doesn't auto-resize iframes by default, so drag the element's bottom edge or set a fixed pixel height in the element settings (500px is a safe starting point).
8. Switch to Mobile View (the phone icon in the top bar) and confirm the element is displaying correctly. In Studio, the element should adapt to the mobile column layout — but check it, because oversized height can push content below the fold on small screens.
9. Preview and Publish as usual.

Note on ADI (Wix's AI website builder): If your Wix site was built with ADI, you have limited layout control. ADI sites often won't let you drag in arbitrary embed elements. The fix is to switch to the classic Wix Editor for that page (Wix allows this per-page in some configurations). If you're not sure, check with Wix Support — this is a common question.

4. Mobile responsiveness on Wix

Mobile is where most Wix iframe embeds go wrong. Here's what actually works.

The core problem: Wix iframes have a fixed height. On mobile, the viewport is narrower, which can cause the calculator content to overflow horizontally or get clipped.

Fix 1 — Stretch to full width. In both the classic editor and Wix Studio, select the HTML element and enable "Stretch to full width" or drag it to span the full page width. This ensures the iframe width matches the screen, not just its default dropped size.

Fix 2 — Check in Mobile View before publishing. Wix has a Mobile View (the phone icon at the top of the editor). Switch to it and scroll through the page. If the calculator looks cramped or cut off, increase the element height in mobile view — you can set different heights for desktop and mobile in the classic editor.

Fix 3 — Leadkit's responsive embed. Leadkit calculators are built mobile-first. The embed code uses a responsive container internally, so as long as the Wix iframe width is set to 100% (or the element stretches to full width), the calculator itself will reflow correctly on small screens. You mainly need to make sure the Wix element isn't constraining it.

Wix Studio vs classic editor: Wix Studio handles mobile significantly better because of its flexbox-based responsive grid. If mobile display is a priority for your site, Studio is the better choice.

5. Common issues and fixes

6. Why Leadkit beats Wix Forms for lead capture

Wix Forms is fine for contact enquiries. It's not designed for quote capture — and that distinction matters a lot if you're trying to win jobs from your website.

Here's the key difference:

Wix Forms collects name, email, and message. The visitor has no idea what the job might cost, so they're often not serious enquiries. You get an email in your inbox and play phone tag.

Leadkit quote calculators work differently. The visitor enters their job details (size, location, materials, finish level), and Leadkit calculates a real cost estimate using your rates. Before showing the full estimate, it asks for their name, email, and phone number. The visitor hands over their contact details because they actually want to see the number.

The result: every lead that comes through Leadkit includes:

• The customer's name, email, and phone
• Exactly what they're after (job type, size, location)
• A breakdown of the estimated cost

From Leadkit's experience running these calculators for tradies across Sydney, Melbourne, Brisbane and beyond, the leads that come through a quote calculator are dramatically warmer than generic contact form submissions — because the customer has already invested time in the calculator and seen a ballpark price. They're not browsing. They're ready to book.

Leadkit also sends a branded PDF estimate to the customer automatically and notifies you instantly, so you can follow up while the lead is hot.

You can browse the full calculator library at leadkit.com.au/calculators — there are 202+ calculators across trades, professional services, and more.

7. Free vs Pro plan

The Free plan is a genuine way to get started — you can build a calculator, embed it in Wix, and start capturing leads today at no cost. The Leadkit branding appears on the calculator result screen on the free plan.

The Pro plan at $59/month removes Leadkit branding, unlocks unlimited calculators, adds a custom email domain so estimates arrive from your business email, and opens up the full CRM so your team can manage and follow up leads properly.

If you're an agency managing calculators for multiple tradie clients, the Agency plan gives you unlimited workspaces under one subscription — each workspace gets its own branding, so each client's calculator looks fully native to their business.

FAQ

Q: Do I need a premium Wix plan to embed a Leadkit calculator?

A: Yes. Wix's free plan prevents external embed code from displaying on published sites — visitors won't see the calculator at all. You need at least a Wix Basic Premium plan for the HTML embed element to work on your live website. This is a Wix restriction, not a Leadkit one. Once you're on a paid Wix plan, the embed works immediately.

Q: Why is my embedded calculator showing as blank in the Wix editor?

A: This is expected behaviour. Wix sandboxes external code in the editor environment for security reasons, so the calculator won't render in the editor itself. Always click "Preview" to test it — the calculator will display correctly in Preview mode and on your published live site. If it's still blank on the live site, check that your embed URL uses https:// (not http://).

Q: Can I embed a Leadkit calculator on a Wix mobile site?

A: Yes, but you need to set it up correctly. Enable "Stretch to full width" on the HTML element and check the layout in Wix's Mobile View before publishing. Leadkit's calculators are mobile-responsive internally — the main thing to manage in Wix is making sure the element width isn't artificially constrained. Wix Studio handles this better than the classic editor.

Q: How is a Leadkit calculator different from using Wix's built-in Wix Forms?

A: Wix Forms collects contact details but doesn't calculate anything. A Leadkit quote calculator takes the visitor's job details, runs them through your real pricing formula, and shows a cost estimate — then captures the visitor's name, email, and phone before revealing the full breakdown. This means every lead includes both contact information and a detailed summary of what the customer wants, which makes follow-up much faster and conversion rates much higher.

Q: Can I use Leadkit on Wix Studio and the classic Wix Editor?

A: Yes — Leadkit works on both. The steps are slightly different (outlined in sections 2 and 3 above), but the core process is the same: get your embed code from Leadkit, paste it into a Wix HTML iframe element, and set the height. Wix Studio offers better responsive layout control, so if you're starting fresh, Studio makes the setup a little smoother — particularly for mobile.

Start capturing leads from your Wix site today

Adding a quote calculator to Wix takes about five minutes once you have your Leadkit embed code. The embed element is built into Wix — you don't need any plugins, Wix apps, or developer help.

The real difference isn't the five minutes of setup. It's what happens after: visitors who use your calculator are already engaged with your pricing when they submit their details. That's a fundamentally different kind of lead than someone who fills in a generic contact form.

Ready to capture better leads from your Wix site? Build your free quote calculator at Leadkit — it takes 60 seconds, and you can embed it in Wix today. No credit card required on the free plan.

This is a price indication tool. Final pricing is confirmed by your tradie or service provider after assessing the job.