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Add a free HELOC calculator to your website

Last updated: October 7, 2026

Realtors, mortgage brokers, credit unions and home improvement writers can put our HELOC calculator on their own pages. Your visitors use it right on your site and never have to leave.

What it does

  • Estimates how much a homeowner could borrow with a HELOC, from home value and mortgage balance.
  • Shows the interest-only payment during the draw period, the payment after it ends, and the payment if the rate rises 2 points.
  • No ads and no lender offers inside the calculator.
  • Fits any column from 280 to 600 pixels wide and sets its own height, so there is no inner scrollbar.

Live preview

The code

Paste it into your page's HTML where the calculator should appear (in WordPress, a Custom HTML block).

<div class="hec-heloc" data-hec="heloc"></div><script async src="https://homeequitycalcs.com/embed.js"></script>
<p style="font-size:13px">HELOC calculator by <a href="https://homeequitycalcs.com/">Home Equity Calcs</a></p>

Some hosted site builders remove script tags from page HTML. If the calculator does not appear, write to us.

Terms

  • Free for any website.
  • Keep the line "HELOC calculator by Home Equity Calcs" with its link, as it is in the code.
  • We may update the calculator; the changes show up on your page automatically.
  • No tracking of your visitors: the calculator sets no cookies and runs no analytics, and the numbers your visitors enter stay in their browser. Our hosting provider logs requests to it, as for any web page. See our privacy policy.
  • Results are estimates, not loan offers. Our terms of use apply.

Contact

Questions or requests: hello@homeequitycalcs.com.