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Run the math →
FILE  WBH-2026/EMBEDS

For publishers, advisors, and bloggers

Free calculators for your readers.

Drop an honest finance tool into any page in thirty seconds. No signup, no API key, no licensing call — just an iframe that runs the same math you'd run on whatbankshide.com.

Choose a calculator How embedding works
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Why publishers run our embeds

01
Drives engagement.
Visitors interact with real math on your page — no bounce to a competitor's affiliate funnel.
02
Builds trust.
Unbiased, ad-free calculators carry your editorial voice instead of a lender's pitch.
03
Always current.
We ship updates server-side. The embed inherits every change without you touching the markup.
04
Zero maintenance.
Paste once. The iframe handles its own height and survives every CMS migration.
I.

Pick a calculator

Click to preview

Mortgage & housing — 7 tools

Car & auto — 6 tools

Debt & savings — 5 tools
II.

Three steps. That's it.

  1. STEP 01

    Choose a calculator

    Pick from eighteen free tools covering mortgages, car finance, debt and savings. Each one is link-able and embeddable.

  2. STEP 02

    Customize the size

    Compact 400 px, standard 600 px, or full-width — whichever fits your column. The iframe rescales for height automatically.

  3. STEP 03

    Copy & paste

    Drop the HTML snippet into any page, post, or CMS block. Works with WordPress, Ghost, Webflow, Substack, plain HTML — everywhere.

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Frequently asked

01 Is it really free?
Completely. No signup, no API key, no usage limits. The calculators are maintained and updated by What Banks Hide and run client-side on your reader's device.
02 How do I add it to WordPress?
Go to any page or post editor, switch to HTML / Code view, and paste the embed code. The calculator renders inside an iframe and resizes itself to fit your column.
03 Can I customize the appearance?
The calculator adapts to its container width. Pick compact (400px), standard (600px), or full width to match your layout. Internal styling stays brand-consistent across embeds.
04 Will it slow down my website?
No. The calculator loads in an iframe and doesn't compete with your page's main thread. It only fully renders when scrolled into view.
05 Do I need to update the embed code?
Never. We maintain and update the calculators continuously — your embed inherits every fix automatically.

Editor's note

Pick a tool, copy the code, and let your readers run the math themselves. No fees, no contracts, no surprise.

Browse calculators