Embed the compound interest calculator

Interest on interest, at daily, monthly, quarterly or annual compounding. Free to use on any site, with one line of HTML and nothing to sign up for.

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This is the real widget. Try changing the numbers.

Calculator by smartfin.fyi

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<iframe src="https://smartfin.fyi/embed/compound-interest.html"
        width="100%" height="1870" style="border:0"
        title="Compound interest calculator" loading="lazy"></iframe>
<p style="font-size:12px;margin:6px 0 0">Calculator by <a href="https://smartfin.fyi/compound-interest-calculator.html">smartfin.fyi</a></p>

Notes

It fills whatever width you give it, down to phone screens.
It follows your reader's light or dark mode automatically.
It does not track your visitors. No cookies, no analytics and no outside files.
A height of 1870 suits most layouts. Increase it if your site uses larger text.
The credit line under the widget is optional. Keep it, delete it, or add rel="nofollow" to its link. The widget works the same either way.

Terms: there aren't many. Use it on any site, including commercial ones, at no cost. We may improve the calculator over time, so the embedded version can change. If it ever needs to be retired, this page will say so first.

The full version

The complete compound interest calculator on smartfin.fyi has more detail than the embed, including a full breakdown by year.

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Notes

The full version

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