Contact Us

We would love to hear from you. Whether you have a question about how a calculator works, found a bug, have a suggestion for a new feature, or simply want to say hello — please reach out. We read every message and aim to respond within 2–3 business days.

✉️ Email Us

For all queries, feedback, and suggestions, write to us at:

satya.bit123@gmail.com

We typically respond within 2–3 business days.

🌐 Website

Visit us at:

investcalcs.in

All calculators are free to use — no login or registration required.

🇮🇳 Invest Calculator is built for Indian investors. All calculators, guides, and tools on this site are provided entirely free of charge. We do not charge for access, do not require account creation, and do not sell any financial products.

What You Can Reach Out For

Bug reports: If a calculator is giving incorrect results, showing an error, or not working on your device — please email us with details of the issue, your browser, and the inputs you used.
Feature requests: Have a calculator in mind that is missing from the site? Or want an existing calculator to show additional data? We welcome suggestions — many existing features were built from user requests.
Content feedback: If you find an error in any of our financial guides, tables, or FAQs — or if government interest rates have changed — please let us know so we can update accordingly.
General queries: Questions about how to use a specific calculator, what certain financial terms mean, or how to interpret a result.
Partnerships and collaborations: If you are a personal finance educator, blogger, or platform interested in collaborating, feel free to reach out.

Frequently Asked Questions — Calculator Help

The calculator is not loading or showing errors. What should I do?

Try a hard refresh (Ctrl+F5 on Windows, Cmd+Shift+R on Mac). If the issue persists, try opening the site in a different browser (Chrome, Firefox, or Edge). Our calculators use JavaScript, so please ensure your browser does not have JS disabled. If the problem continues, email us at satya.bit123@gmail.com with details of your browser and device.

The SIP / NPS / PPF interest rate seems outdated. Can you update it?

Interest rates for government instruments like PPF and EPF change quarterly. We try to keep our default values current, but you can always manually type in the latest rate into any calculator input field — all our calculators accept custom rate inputs. If a default is significantly out of date, please email us and we will update it promptly.

Can I embed these calculators on my own website or blog?

Please reach out to us via email before embedding our calculators. We are generally open to reasonable usage, particularly for educational and non-commercial purposes, but would like to discuss the specifics before granting permission.

I disagree with a calculation result. How can I report it?

We take accuracy seriously. Please email us with the calculator name, the inputs you used, the result you got, and what you believe the correct result should be (along with the source or formula you are referencing). We will review within 2–3 business days and issue a correction if there is an error.

Disclaimer

Invest Calculator is an educational platform providing free financial planning calculators. We are not a SEBI-registered investment advisor, financial planner, or banking institution. Nothing on this website constitutes financial, investment, legal, or tax advice. Always consult a qualified financial professional before making investment decisions. Calculator results are mathematical projections based on the inputs you provide and are not guarantees of future performance.