Free calculators for your website
Choose a calculator, preview it, and paste the code into your website’s HTML block. Free to use with the visible Income Checker credit. No signup required.
Optional: uncheck to hide the top branding. The calculator title and footer credit stay visible. You can also add branding=0 to the iframe URL in your code.
Paste both lines into a custom HTML block that allows scripts. The script adjusts the calculator’s height automatically. If scripts are blocked, the iframe still works at its initial height with scrolling. Keep the visible “Powered by IncomeChecker.com” credit when embedding.