Embed a calculator

Add a working calculator to a class page, library guide or article. Copy the code below into your page's HTML. It is free, and it collects nothing about you or your readers.

How embeds work

The calculator runs entirely in your reader's browser. Nothing they enter is sent anywhere, and the embed has no analytics, cookies, ads or tracking. We cannot see where it is embedded or how often it is used.
The code asks browsers not to send your page's address to us (referrerpolicy="no-referrer").
Each embed carries a small “Calculator by Even Figures” credit. The link under the frame is a plain brand link marked rel="nofollow"; please keep it, but no particular link text or placement is expected.
Adjust height to fit your layout; the frame scrolls if the results grow taller. Width follows your column.
Free to use on any site, including for teaching. Please don't alter the calculator or present it as your own. Questions: contact@evenfigures.com.

Compound interest calculator

Project savings growth with compounding and regular contributions. Preview the embed · Full page

<iframe src="https://evenfigures.com/embed/compound-interest/" title="Compound interest calculator" width="100%" height="1250" loading="lazy" referrerpolicy="no-referrer" style="border:0;max-width:100%"></iframe>
<p><a href="https://evenfigures.com/compound-interest/" rel="nofollow">Calculator by Even Figures</a></p>

Amortization calculator: loan payment & schedule

Estimate payments and see how each month reduces the balance. Preview the embed · Full page

<iframe src="https://evenfigures.com/embed/loan-payment/" title="Amortization calculator: loan payment &amp; schedule" width="100%" height="1000" loading="lazy" referrerpolicy="no-referrer" style="border:0;max-width:100%"></iframe>
<p><a href="https://evenfigures.com/loan-payment/" rel="nofollow">Calculator by Even Figures</a></p>

Mortgage payment calculator

See the monthly payment, loan amount, loan-to-value, and total interest from a home price and down payment. Preview the embed · Full page

<iframe src="https://evenfigures.com/embed/mortgage-payment/" title="Mortgage payment calculator" width="100%" height="1300" loading="lazy" referrerpolicy="no-referrer" style="border:0;max-width:100%"></iframe>
<p><a href="https://evenfigures.com/mortgage-payment/" rel="nofollow">Calculator by Even Figures</a></p>

Savings goal calculator

Work backward from a target to a manageable monthly contribution. Preview the embed · Full page

<iframe src="https://evenfigures.com/embed/savings-goal/" title="Savings goal calculator" width="100%" height="1050" loading="lazy" referrerpolicy="no-referrer" style="border:0;max-width:100%"></iframe>
<p><a href="https://evenfigures.com/savings-goal/" rel="nofollow">Calculator by Even Figures</a></p>

Percentage calculator

Percent of a number, percentage change and percent difference. Preview the embed · Full page

<iframe src="https://evenfigures.com/embed/percentage/" title="Percentage calculator" width="100%" height="900" loading="lazy" referrerpolicy="no-referrer" style="border:0;max-width:100%"></iframe>
<p><a href="https://evenfigures.com/percentage/" rel="nofollow">Calculator by Even Figures</a></p>