Plan your fixed deposit investments. Calculate maturity amount, interest earned, and compare compounding frequencies.
16/4/2026
Principal
₹5,00,000
Total Interest
₹2,14,374
Maturity Value
₹7,14,374
A Fixed Deposit (FD) is one of the safest and most popular investment options in India. It allows you to deposit a lump sum amount with a bank or financial institution for a fixed tenure and earn a predetermined rate of interest. But how do you know exactly how much your FD will grow? That’s where an FD Calculator becomes indispensable.
Our FD Calculator above is designed to give you an instant, accurate estimate of your maturity amount. You can adjust the principal, interest rate, tenure, and compounding frequency to see how your wealth compounds over time. In this detailed guide, we will explore every aspect of FD investments, the mathematics behind compounding, tax implications, and tips to maximise your returns.
The maturity value of an FD is calculated using the compound interest formula:A = P * (1 + r/n)^(n*t)
Where:
The more frequently interest is compounded, the higher your effective yield. For example, a ₹1,00,000 FD at 7% p.a. for 5 years will give you:
Interest earned from FDs is fully taxable under “Income from Other Sources” as per your income tax slab. Banks deduct TDS (Tax Deducted at Source) at 10% if interest exceeds ₹40,000 per year (₹50,000 for senior citizens). However, you can submit Form 15G/15H to avoid TDS if your total income is below the taxable limit. Always factor in post-tax returns when planning your investments.
Most banks offer an additional 0.50% interest rate to senior citizens. For instance, if a regular FD gives 7%, a senior citizen gets 7.5%. This can substantially increase maturity amounts over long tenures. Use the calculator by adding 0.5% to the rate to see the difference.
Cumulative FD: Interest is reinvested and paid at maturity along with principal – ideal for wealth creation.
Non-Cumulative FD: Interest is paid out periodically (monthly, quarterly, etc.) – suitable for regular income needs. Our calculator currently models cumulative FDs (the most common).
- Goal-based investing: Suppose you need ₹10 lakhs after 5 years. Adjust the principal until the maturity value matches your goal.
- Compare banks: Different banks offer different rates. Input the rate from various banks to find the best maturity.
- Decide tenure: Longer tenures give higher returns but lock in your money. Balance liquidity needs.
- Download report: Use the PDF report to share with your family or financial advisor.
- Safety: FDs are covered by DICGC insurance up to ₹5 lakhs per bank.
- Guaranteed returns: Unlike stocks or mutual funds, FD returns are fixed and known upfront.
- Loan against FD: You can avail up to 90% of your FD amount as a loan without breaking it.
- Easy to open: Online FDs can be opened in minutes via net banking.
- Lower returns: Historically, FDs have given 5-9% returns, which may not beat inflation in the long run.
- Tax inefficiency: Interest is added to income and taxed as per slab, unlike equity LTCG.
- Premature withdrawal penalty: Breaking an FD early usually reduces interest by 0.5-1%.
Yes, it uses the standard compound interest formula. Actual bank calculations may differ marginally due to rounding or day-count conventions, but it's 99% accurate.
Yes, simply set tenure to 0.0833 years (1/12) or use days if supported. Our calculator works for any fractional year.
Banks offer FDs from 7 days to 10 years. Some allow up to 20 years. Our calculator supports up to 30 years.
Click the “Download PDF Report” button. The report includes all charts and summary data.
An FD Calculator is not just a number-crunching tool – it’s a financial planning companion. Whether you are saving for a child’s education, a house down payment, or retirement, our interactive FD Calculator gives you clarity and confidence. Bookmark this page, share it with friends, and make informed decisions.
Start using the FD Calculator above now – adjust the sliders, watch the charts update in real time, and download your personalised report. Happy investing!