About SimpleInterestLoan.com

SimpleInterestLoan.com offers free calculators and clear explanations of how loan interest works, so you can check a lender’s numbers yourself. It is operated by Herald Brands LLC, an Illinois company that runs focused, single-topic websites.

How our calculators work

• Every calculator uses standard, published formulas, shown on our formula page, and every worked example on the site is computed with the same code.
• Calculators run entirely in your browser. We never see the numbers you enter.
• Results are estimates. Your lender’s disclosures and payoff quotes are the final word.

How the site is funded

The site is free, and the calculators run entirely in your browser.

A note on this domain’s history

Before Herald Brands LLC acquired it, this domain hosted a directory of advertising links. None of that content is ours, and old links now point to the closest current page.

Questions or corrections? Contact us. Or start with the simple interest loan calculator.