Copy the iframe snippet for the calculator you want and paste it into your page as HTML: <iframe src="https://www.fundraksha.com/embed/gst-calculator" width="100%" height="640"></iframe>, followed by the credit line "Calculator by FundRaksha" linking to the calculator's page. The embed is free, has no ads, makes no network calls with your visitors' numbers and stays up to date when rates change. The only condition is that the visible credit link stays in place.
Calculators you can embed
| Calculator | What it does | Embed URL |
|---|---|---|
| gst-calculator | Add or remove GST with the CGST, SGST or IGST split | https://www.fundraksha.com/embed/gst-calculator |
| e-invoice-limit-checker | Checks whether e-invoicing is mandatory from turnover | https://www.fundraksha.com/embed/e-invoice-limit-checker |
| gstin-validator | Checks the format and check digit of a GST number, offline | https://www.fundraksha.com/embed/gstin-validator |
| pf-calculator | Employee and employer EPF, EPS and EDLI contributions | https://www.fundraksha.com/embed/pf-calculator |
| esi-calculator | Employee and employer ESI contribution and eligibility | https://www.fundraksha.com/embed/esi-calculator |
| salary-calculator | CTC to in-hand salary | https://www.fundraksha.com/embed/salary-calculator |
| hra-calculator | HRA exemption | https://www.fundraksha.com/embed/hra-calculator |
| gratuity-calculator | Gratuity amount and eligibility | https://www.fundraksha.com/embed/gratuity-calculator |
| msme-interest-calculator | Compound interest on delayed payments to micro and small suppliers | https://www.fundraksha.com/embed/msme-interest-calculator |
| late-payment-interest-calculator | Simple interest on any late invoice | https://www.fundraksha.com/embed/late-payment-interest-calculator |
| cheque-bounce-timeline | Section 138 notice and complaint deadlines | https://www.fundraksha.com/embed/cheque-bounce-timeline |
| limitation-period-calculator | Last date to sue for an unpaid invoice | https://www.fundraksha.com/embed/limitation-period-calculator |
| dso-calculator | Days sales outstanding | https://www.fundraksha.com/embed/dso-calculator |
Open the calculator link to see the full page with the explanation and worked example; the embed shows the same tool without the article.
The snippet
Paste this where you want the calculator to appear. Change the slug to any calculator in the table. Keep the credit paragraph; you may restyle it to match your site as long as it stays visible and links to the calculator page.
<iframe src="https://www.fundraksha.com/embed/gst-calculator" width="100%" height="640" style="border:0;max-width:760px" loading="lazy" title="Free calculator by FundRaksha"></iframe> <p style="font-size:13px">Calculator by <a href="https://www.fundraksha.com/calculators/gst-calculator">FundRaksha</a></p>
<iframe src="https://www.fundraksha.com/embed/pf-calculator" width="100%" height="720" style="border:0;max-width:760px" loading="lazy" title="Free calculator by FundRaksha"></iframe> <p style="font-size:13px">Calculator by <a href="https://www.fundraksha.com/calculators/pf-calculator">FundRaksha</a></p>
<iframe src="https://www.fundraksha.com/embed/msme-interest-calculator" width="100%" height="720" style="border:0;max-width:760px" loading="lazy" title="Free calculator by FundRaksha"></iframe> <p style="font-size:13px">Calculator by <a href="https://www.fundraksha.com/calculators/msme-interest-calculator">FundRaksha</a></p>
Height: most calculators fit in 640 to 760 pixels. If the result is cut off on your page, raise the height value. On WordPress, use a Custom HTML block; on Blogger or Wix, use the HTML or embed widget.
Terms of use
- Free: no fee, now or later, for embedding.
- Credit link required: the "Calculator by FundRaksha" link must stay visible on the same page and must not be marked nofollow, hidden or removed.
- No framing tricks: do not overlay, crop or change the calculator, or present it as your own tool.
- Accuracy: we keep rates and limits current and note the source on each calculator page. Results are estimates for information; your readers should confirm with their adviser.
- Removal: we may ask you to remove an embed used on a misleading or unlawful site.
Why sites embed these tools
A working calculator keeps a reader on your page longer than a table of rates, and it never goes stale: when GST rates or PF limits change, the embed updates without you touching it. A CA firm can put the GST calculator on its GST services page, an industry association can add the MSME interest calculator to its members' page, and an HR blog can embed the salary and PF calculators under a payroll article.
Example: a CA firm's page on "GST for small traders" embeds the GST calculator. A visitor enters ₹25,000 at 18%, sees ₹4,500 GST split ₹2,250 CGST and ₹2,250 SGST, and stays on the firm's page to read about registration. The credit line sits under the tool.
CA firms that want more than the tools can join the CA partner programme. Questions about embedding: use the contact page.
Last reviewed: 2026-10-21. Information for Indian businesses; not legal advice.