How to add it
- Pick a theme and copy the code.
- Paste it into your page's HTML, or into the “Custom HTML” block of your site builder, where the calculator should appear.
- That's it: the widget fills the column up to 560 pixels wide and works on phones.
Terms
- Free. For personal, educational and commercial sites. No signup, no approval needed.
- No tracking. The widget sets no cookies, loads no analytics or ads, and sends nothing anywhere: the math runs in the reader's browser.
- Lightweight. A single small HTML document with no third-party fonts or libraries, so it barely affects your page speed.
- Attribution is optional. The second line of the code is a link to DelDebt under the widget. We'd appreciate it if you keep it, but you can remove it. A small “Calculator by DelDebt” link stays inside the widget itself.
Show your own example
You can set the starting numbers in the iframe URL: balance, rate, payment and extra. For example:
https://deldebt.com/embed/payoff?balance=8000&rate=22&payment=240&extra=100How the math works
Each month the balance accrues APR divided by 12, then the payment comes off. It's the same math as the DelDebt calculators and planner. Lenders accrue interest daily, so their numbers can differ by a few dollars.
Need a different calculator?
Tell us what your site is about and what your readers need to calculate through the support page.