Embed our calculators on your site

Real estate bloggers, agents, course creators, and finance writers: grab the iframe code below and drop any of our 9 embeddable calculators on your site — 9 of our 10 free tools (the Rehab Cost Estimator runs on TrueCap only). Free to use forever. No signup, no attribution required beyond the small "Powered by TrueCap" footer (which links back to us — so you get a free calculator, we get a backlink).

9 embeddable

Of 10 TrueCap calculators

Auto-resizing

No nested scrollbars on your page

Mobile-friendly

Responsive on every screen size

Free forever

No API key, no signup, no rate limits

How to embed

Pick the calculator below that fits your post or page.
Click "Copy" on the embed code.
Paste the HTML into your page. Works on WordPress (Custom HTML block), Webflow (Embed element), Ghost (HTML card), Squarespace (Code block), Substack, and any CMS that accepts raw HTML.
Save. The calculator renders on your page with auto-sized height.

Want a calculator we don't have here? Send us a note — we'll consider adding it.

Pick a calculator

9 available

Mortgage Payment Calculator

Preview

PITI breakdown — principal, interest, taxes, insurance — for investment loans.

Embed code (HTML)

<iframe
  src="https://usetruecap.com/embed/mortgage-payment-calculator"
  loading="lazy"
  style="width:100%; max-width:640px; border:0; height:700px; display:block;"
  title="TrueCap calculator"
></iframe>
<p style="max-width:640px; margin:6px 0 0; font:12px/1.4 system-ui, sans-serif; color:#6b7280;">
  Calculator by <a href="https://usetruecap.com/tools/mortgage-payment-calculator?utm_source=embed&utm_medium=referral" style="color:#0070c4; text-decoration:none;">TrueCap</a> — free rental property analysis
</p>
<script>
(function(){
  window.addEventListener("message",function(e){
    var d=e.data;
    if(!d||d.type!=="truecap:embed:resize"||d.slug!=="mortgage-payment-calculator")return;
    var f=document.querySelector('iframe[src="https://usetruecap.com/embed/mortgage-payment-calculator"]');
    if(f&&typeof d.height==="number")f.style.height=Math.max(700,d.height)+"px";
  });
})();
</script>

Gross Rent Multiplier (GRM) Calculator

Preview

The 10-second screening ratio for triaging rental deals.

Embed code (HTML)

<iframe
  src="https://usetruecap.com/embed/gross-rent-multiplier-calculator"
  loading="lazy"
  style="width:100%; max-width:640px; border:0; height:560px; display:block;"
  title="TrueCap calculator"
></iframe>
<p style="max-width:640px; margin:6px 0 0; font:12px/1.4 system-ui, sans-serif; color:#6b7280;">
  Calculator by <a href="https://usetruecap.com/tools/gross-rent-multiplier-calculator?utm_source=embed&utm_medium=referral" style="color:#0070c4; text-decoration:none;">TrueCap</a> — free rental property analysis
</p>
<script>
(function(){
  window.addEventListener("message",function(e){
    var d=e.data;
    if(!d||d.type!=="truecap:embed:resize"||d.slug!=="gross-rent-multiplier-calculator")return;
    var f=document.querySelector('iframe[src="https://usetruecap.com/embed/gross-rent-multiplier-calculator"]');
    if(f&&typeof d.height==="number")f.style.height=Math.max(560,d.height)+"px";
  });
})();
</script>

1% Rule Calculator

Preview

Pass/fail rental screening filter in 5 seconds.

Embed code (HTML)

<iframe
  src="https://usetruecap.com/embed/1-percent-rule-calculator"
  loading="lazy"
  style="width:100%; max-width:640px; border:0; height:480px; display:block;"
  title="TrueCap calculator"
></iframe>
<p style="max-width:640px; margin:6px 0 0; font:12px/1.4 system-ui, sans-serif; color:#6b7280;">
  Calculator by <a href="https://usetruecap.com/tools/1-percent-rule-calculator?utm_source=embed&utm_medium=referral" style="color:#0070c4; text-decoration:none;">TrueCap</a> — free rental property analysis
</p>
<script>
(function(){
  window.addEventListener("message",function(e){
    var d=e.data;
    if(!d||d.type!=="truecap:embed:resize"||d.slug!=="1-percent-rule-calculator")return;
    var f=document.querySelector('iframe[src="https://usetruecap.com/embed/1-percent-rule-calculator"]');
    if(f&&typeof d.height==="number")f.style.height=Math.max(480,d.height)+"px";
  });
})();
</script>

ARV Calculator (After-Repair Value + 70% Rule)

Preview

Estimate after-repair value from entered renovated comps and calculate an early 70%-rule price screen.

Embed code (HTML)

<iframe
  src="https://usetruecap.com/embed/arv-calculator"
  loading="lazy"
  style="width:100%; max-width:640px; border:0; height:940px; display:block;"
  title="TrueCap calculator"
></iframe>
<p style="max-width:640px; margin:6px 0 0; font:12px/1.4 system-ui, sans-serif; color:#6b7280;">
  Calculator by <a href="https://usetruecap.com/tools/arv-calculator?utm_source=embed&utm_medium=referral" style="color:#0070c4; text-decoration:none;">TrueCap</a> — free rental property analysis
</p>
<script>
(function(){
  window.addEventListener("message",function(e){
    var d=e.data;
    if(!d||d.type!=="truecap:embed:resize"||d.slug!=="arv-calculator")return;
    var f=document.querySelector('iframe[src="https://usetruecap.com/embed/arv-calculator"]');
    if(f&&typeof d.height==="number")f.style.height=Math.max(940,d.height)+"px";
  });
})();
</script>

Break-Even Calculator

Preview

Months until rental cash flow returns your initial investment.

Embed code (HTML)

<iframe
  src="https://usetruecap.com/embed/break-even-calculator"
  loading="lazy"
  style="width:100%; max-width:640px; border:0; height:640px; display:block;"
  title="TrueCap calculator"
></iframe>
<p style="max-width:640px; margin:6px 0 0; font:12px/1.4 system-ui, sans-serif; color:#6b7280;">
  Calculator by <a href="https://usetruecap.com/tools/break-even-calculator?utm_source=embed&utm_medium=referral" style="color:#0070c4; text-decoration:none;">TrueCap</a> — free rental property analysis
</p>
<script>
(function(){
  window.addEventListener("message",function(e){
    var d=e.data;
    if(!d||d.type!=="truecap:embed:resize"||d.slug!=="break-even-calculator")return;
    var f=document.querySelector('iframe[src="https://usetruecap.com/embed/break-even-calculator"]');
    if(f&&typeof d.height==="number")f.style.height=Math.max(640,d.height)+"px";
  });
})();
</script>

Closing Cost Calculator

Preview

Line-item closing costs on a rental purchase.

Embed code (HTML)

<iframe
  src="https://usetruecap.com/embed/closing-cost-calculator"
  loading="lazy"
  style="width:100%; max-width:640px; border:0; height:880px; display:block;"
  title="TrueCap calculator"
></iframe>
<p style="max-width:640px; margin:6px 0 0; font:12px/1.4 system-ui, sans-serif; color:#6b7280;">
  Calculator by <a href="https://usetruecap.com/tools/closing-cost-calculator?utm_source=embed&utm_medium=referral" style="color:#0070c4; text-decoration:none;">TrueCap</a> — free rental property analysis
</p>
<script>
(function(){
  window.addEventListener("message",function(e){
    var d=e.data;
    if(!d||d.type!=="truecap:embed:resize"||d.slug!=="closing-cost-calculator")return;
    var f=document.querySelector('iframe[src="https://usetruecap.com/embed/closing-cost-calculator"]');
    if(f&&typeof d.height==="number")f.style.height=Math.max(880,d.height)+"px";
  });
})();
</script>

Vacancy Rate Calculator

Preview

Effective vacancy rate from vacant days + turnover cost.

Embed code (HTML)

<iframe
  src="https://usetruecap.com/embed/vacancy-rate-calculator"
  loading="lazy"
  style="width:100%; max-width:640px; border:0; height:700px; display:block;"
  title="TrueCap calculator"
></iframe>
<p style="max-width:640px; margin:6px 0 0; font:12px/1.4 system-ui, sans-serif; color:#6b7280;">
  Calculator by <a href="https://usetruecap.com/tools/vacancy-rate-calculator?utm_source=embed&utm_medium=referral" style="color:#0070c4; text-decoration:none;">TrueCap</a> — free rental property analysis
</p>
<script>
(function(){
  window.addEventListener("message",function(e){
    var d=e.data;
    if(!d||d.type!=="truecap:embed:resize"||d.slug!=="vacancy-rate-calculator")return;
    var f=document.querySelector('iframe[src="https://usetruecap.com/embed/vacancy-rate-calculator"]');
    if(f&&typeof d.height==="number")f.style.height=Math.max(700,d.height)+"px";
  });
})();
</script>

70% Rule Calculator

Preview

70%-rule price screen = entered ARV × selected multiplier minus entered repairs — a starting screen, not a recommended offer.

Embed code (HTML)

<iframe
  src="https://usetruecap.com/embed/70-percent-rule-calculator"
  loading="lazy"
  style="width:100%; max-width:640px; border:0; height:820px; display:block;"
  title="TrueCap calculator"
></iframe>
<p style="max-width:640px; margin:6px 0 0; font:12px/1.4 system-ui, sans-serif; color:#6b7280;">
  Calculator by <a href="https://usetruecap.com/tools/70-percent-rule-calculator?utm_source=embed&utm_medium=referral" style="color:#0070c4; text-decoration:none;">TrueCap</a> — free rental property analysis
</p>
<script>
(function(){
  window.addEventListener("message",function(e){
    var d=e.data;
    if(!d||d.type!=="truecap:embed:resize"||d.slug!=="70-percent-rule-calculator")return;
    var f=document.querySelector('iframe[src="https://usetruecap.com/embed/70-percent-rule-calculator"]');
    if(f&&typeof d.height==="number")f.style.height=Math.max(820,d.height)+"px";
  });
})();
</script>

2% Rule Calculator

Preview

The strict cash-flow screen — rent-to-price against the 2% and 1% bars.

Embed code (HTML)

<iframe
  src="https://usetruecap.com/embed/2-percent-rule-calculator"
  loading="lazy"
  style="width:100%; max-width:640px; border:0; height:520px; display:block;"
  title="TrueCap calculator"
></iframe>
<p style="max-width:640px; margin:6px 0 0; font:12px/1.4 system-ui, sans-serif; color:#6b7280;">
  Calculator by <a href="https://usetruecap.com/tools/2-percent-rule-calculator?utm_source=embed&utm_medium=referral" style="color:#0070c4; text-decoration:none;">TrueCap</a> — free rental property analysis
</p>
<script>
(function(){
  window.addEventListener("message",function(e){
    var d=e.data;
    if(!d||d.type!=="truecap:embed:resize"||d.slug!=="2-percent-rule-calculator")return;
    var f=document.querySelector('iframe[src="https://usetruecap.com/embed/2-percent-rule-calculator"]');
    if(f&&typeof d.height==="number")f.style.height=Math.max(520,d.height)+"px";
  });
})();
</script>

Questions

Can I customize the calculator's look?

Not in v1 — the calculator inherits TrueCap's styling so it stays consistent across embeds. If there's demand for color/branding customization, we'll add it.

Do I have to keep the 'Powered by TrueCap' footer?

Yes. The footer is the only ask in exchange for free, hosted, maintained calculators. It's small, tasteful, and doesn't compete with your content.

Will the calculator slow down my site?

No. The iframe loads lazily (loading="lazy") so it only fetches when scrolled into view. Renders independently of your page so it can't block your content from showing.

Can I track conversions from my embed?

The attribution link uses utm_source=embed plus a per-calculator utm_campaign so we can report aggregate traffic. If you want per-site attribution, add ?ref=<your-site> to the iframe src — we'll forward it on through to TrueCap and pass it to GA.

What if your calculator math changes?

Embeds auto-update because they load from TrueCap servers. You always get the current version. We commit to backward-compatible URLs — embed code you paste today keeps working forever.

Have a real estate audience?

Embed a calculator + write a 200-word post about it. Your readers get a useful tool. You get an interactive page that ranks for calculator queries. We get a backlink. Everyone wins.

Try the full TrueCap analyzer