Add a Calculator to Your Site

Add a calculator to your site

Free for any blog or website. Copy the code, paste it into your page, done. No sign-up.

Pick a calculator below. Press Copy code, then paste the code where you want the calculator to appear, in the HTML view of your page or in a “Custom HTML” block.

Savings Goal Calculator

See how much to put aside each month for a goal, or when you'll reach it at your own pace.

See it working
<iframe src="https://needtheseapps.com/embed/savings-goal-calculator/" title="Savings Goal Calculator" width="100%" height="700" style="border:0;max-width:760px" loading="lazy"></iframe>
<p style="font-size:13px">Calculator by <a href="https://needtheseapps.com/apps/financial/savings-goal-calculator/">NeedTheseApps</a></p>

Compound Interest Calculator

See what your savings could grow into over time, with or without monthly additions.

See it working
<iframe src="https://needtheseapps.com/embed/compound-interest-calculator/" title="Compound Interest Calculator" width="100%" height="700" style="border:0;max-width:760px" loading="lazy"></iframe>
<p style="font-size:13px">Calculator by <a href="https://needtheseapps.com/apps/financial/compound-interest-calculator/">NeedTheseApps</a></p>

CD Calculator

See what a certificate of deposit earns, what an early withdrawal costs, and what you keep after tax and inflation.

See it working
<iframe src="https://needtheseapps.com/embed/cd-calculator/" title="CD Calculator" width="100%" height="700" style="border:0;max-width:760px" loading="lazy"></iframe>
<p style="font-size:13px">Calculator by <a href="https://needtheseapps.com/apps/financial/cd-calculator/">NeedTheseApps</a></p>

Savings Withdrawal Calculator

See how long your savings last when you take a monthly income from them, and what is left at the end.

See it working
<iframe src="https://needtheseapps.com/embed/savings-withdrawal-calculator/" title="Savings Withdrawal Calculator" width="100%" height="700" style="border:0;max-width:760px" loading="lazy"></iframe>
<p style="font-size:13px">Calculator by <a href="https://needtheseapps.com/apps/financial/savings-withdrawal-calculator/">NeedTheseApps</a></p>

FIRE Calculator

See how much you need to stop working, whether your money is enough now or at the age you choose.

See it working
<iframe src="https://needtheseapps.com/embed/fire-calculator/" title="FIRE Calculator" width="100%" height="700" style="border:0;max-width:760px" loading="lazy"></iframe>
<p style="font-size:13px">Calculator by <a href="https://needtheseapps.com/apps/financial/fire-calculator/">NeedTheseApps</a></p>

Life Expectancy Calculator

See the average age people your age reach and your chances of living to 90, 95 or 100, from official life tables.

See it working
<iframe src="https://needtheseapps.com/embed/life-expectancy-calculator/" title="Life Expectancy Calculator" width="100%" height="700" style="border:0;max-width:760px" loading="lazy"></iframe>
<p style="font-size:13px">Calculator by <a href="https://needtheseapps.com/apps/financial/life-expectancy-calculator/">NeedTheseApps</a></p>

Inflation Calculator

See what money was worth in the past, what it will buy in the years ahead, and how rising prices change it.

See it working
<iframe src="https://needtheseapps.com/embed/inflation-calculator/" title="Inflation Calculator" width="100%" height="700" style="border:0;max-width:760px" loading="lazy"></iframe>
<p style="font-size:13px">Calculator by <a href="https://needtheseapps.com/apps/financial/inflation-calculator/">NeedTheseApps</a></p>

Optional: let the frame grow with the calculator

Without this the frame stays 700 pixels tall and scrolls inside if the calculator is taller. Paste this once on your page, anywhere below the code above, and the frame takes the height the calculator needs.

<script>window.addEventListener("message",function(e){if(e.origin!=="https://needtheseapps.com"||!e.data||e.data.type!=="nta-embed-height")return;var f=document.getElementsByTagName("iframe");for(var i=0;i<f.length;i++){if(f[i].contentWindow===e.source){f[i].style.height=e.data.height+"px"}}});</script>

Rules

  • Free. No sign-up, no fee, no limit on pages.
  • Please keep the credit line. The line under the frame, “Calculator by NeedTheseApps”, is the only price.
  • Do not change the numbers. The calculator is shown as it is, with its own assumptions.
  • The calculator updates itself. When we improve it, your page shows the new version. You change nothing.

Questions? Write to us.

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