Professional, responsive, embeddable calculator widgets. No signup, no cost, no maintenance. Just copy, paste, and go.
Under 5KB per widget. No jQuery, no frameworks, no bloat.
Light and dark themes. Fits any website design.
Shadow DOM prevents style conflicts with your site.
Works perfectly on mobile, tablet, and desktop.
Three steps to add a calculator to your website
Pick from our collection of financial calculators below.
One line of HTML. Just a script tag, nothing else.
Drop it into your HTML, WordPress, or any CMS.
Click "Copy" to get the embed code for any calculator
Common questions about our embeddable widgets
Yes, completely free. No signup, no API keys, no usage limits. Just copy the embed code and paste it into your website.
No. Each widget is under 5KB of pure JavaScript with zero external dependencies. It loads asynchronously and won't block your page rendering.
Yes. You can paste the embed code into any Custom HTML block in WordPress, Squarespace, Wix, Ghost, or any website builder that supports HTML.
No. Each widget renders inside a Shadow DOM container, which means its styles are completely isolated from your website's styles. No conflicts possible.
You can switch between light and dark themes using the data-theme attribute, and control the width with data-width. More customization options coming soon.
The small attribution link is how we keep these widgets free for everyone. It's unobtrusive and helps us continue developing new tools.
Financial calculators are some of the most engaging content you can add to a blog or website. Visitors spend 3-5x longer on pages with interactive tools, which improves your bounce rate, dwell time, and SEO rankings.
Our embeddable financial calculator widgets are designed specifically for bloggers, content creators, and webmasters who want to enhance their financial content without building tools from scratch.
Our mortgage calculator widget lets your visitors calculate monthly payments, total interest costs, and compare different loan terms. It is the most requested financial widget by personal finance bloggers and real estate websites.
The compound interest calculator widget visually demonstrates the power of long-term investing. With interactive bar charts showing principal vs. interest growth, it is ideal for investment blogs, financial literacy sites, and retirement planning content.
The FIRE (Financial Independence, Retire Early) calculator helps visitors determine when they can retire based on their income, expenses, and investment returns. Essential for FIRE community blogs and financial independence content.
Our credit score estimator widget helps visitors understand the factors that influence their credit score and provides actionable improvement tips. Popular with credit repair blogs and personal finance sites.
