FD Calculator – Calculate Fixed Deposit Interest & Maturity Amount Instantly
Estimate your FD returns in seconds and plan your savings with confidence.
Fixed Deposit Calculator
Move the sliders or enter your own numbers directly and the results will update in real time.
What Is an FD Calculator?
An FD Calculator is a free online tool that calculates the maturity amount and interest earned on a fixed deposit. It helps remove manual errors and makes it easier to compare FD options before investing.
Key benefits of an FD calculator:
- Know your maturity value instantly.
- Compare cumulative and non-cumulative FD returns.
- Estimate tax deducted at source, where applicable.
- Check the benefit of senior citizen rates.
- Use it free, with no login required.
How Does the FD Calculator Work?
The calculator uses either compound interest or simple interest, depending on the FD type and tenure.
Mode
Formula
Best Used For
Compound Interest
A = P × (1 + r/n)^(n×t)
Cumulative FDs where interest is reinvested.
Simple Interest
SI = P × r × t / 100
Short-tenure or payout-based calculations.
Symbol
Meaning
A
Maturity amount
P
Principal amount
r
Annual interest rate
n
Compounding frequency
t
Tenure in years
Worked example Investment: ₹5,00,000 at 7% for 3 years. Quarterly compounding: maturity is about ₹6,15,720 and interest is about ₹1,15,720. Simple interest: interest is ₹1,05,000 and total value is ₹6,05,000.
FD Interest Rate Scenarios
Use these examples as quick reference points. Actual returns may differ by bank, tenure, payout option and compounding rule.
Principal
Rate
Tenure
Maturity
Interest Earned
Monthly Interest*
₹1,00,000
6.50%
1 year
₹1,06,660
₹6,660
₹542
₹1,00,000
7.00%
3 years
₹1,23,144
₹23,144
₹583
₹5,00,000
7.00%
3 years
₹6,15,720
₹1,15,720
₹2,917
₹5,00,000
7.50%
5 years
₹7,24,974
₹2,24,974
₹3,125
₹10,00,000
7.00%
5 years
₹14,14,778
₹4,14,778
₹5,833
₹10,00,000
7.50%
5 years
₹14,49,948
₹4,49,948
₹6,250
₹25,00,000
7.00%
3 years
₹30,78,598
₹5,78,598
₹14,583
₹50,00,000
7.25%
5 years
₹71,61,303
₹21,61,303
₹30,208
*Disclaimer: The numbers used in this table are illustrative examples only. Actual returns may differ based on the bank’s FD terms, interest rate, tenure, compounding method, and payout option.
How to Use the FD Calculator
Use the FD Calculator to quickly estimate your maturity amount and interest earned by entering your investment amount, interest rate, tenure, and payout preferences.
Step 1
Enter the amount you want to invest.
Step 2
Add the annual interest rate offered by your chosen bank or NBFC.
Step 3
Select the tenure in years and months.
Step 4
Choose the compounding frequency or simple interest option.
Step 5
Select Regular or Senior Citizen and view results instantly.
Cumulative vs Non-Cumulative FD
Understand the difference between cumulative and non-cumulative FDs to choose whether you want higher maturity returns or regular interest payouts.
Parameter
Cumulative FD
Non-Cumulative FD
Interest payout
Paid at maturity
Paid monthly, quarterly or annually
Return potential
Higher, due to compounding
Lower, as interest is not reinvested
Best for
Long-term goals
Regular income needs
Suitable users
Salaried investors and goal planners
Retirees and income-focused investors
TDS point
Usually on annual accrual
Usually when interest is credited
Example
₹5 lakh at 7% for 5 years grows to about ₹7.07 lakh maturity.
₹5 lakh at 7% gives about ₹2,917 per month payout till tenure.
Quick tip: Choose a cumulative FD if regular income is not needed. Choose a non-cumulative FD if predictable cash flow is the priority.
FD Laddering Strategy
FD laddering means splitting one large deposit into smaller FDs with different maturity dates. It gives regular liquidity and reduces the risk of locking all money at one rate.
Tranche
Amount
Tenure
Illustrative Rate
Maturity Value
Matures In
FD 1
₹2,00,000
1 year
6.80%
₹2,13,951
Year 1
FD 2
₹2,00,000
2 years
7.00%
₹2,29,776
Year 2
FD 3
₹2,00,000
3 years
7.20%
₹2,47,744
Year 3
FD 4
₹2,00,000
4 years
7.30%
₹2,67,116
Year 4
FD 5
₹2,00,000
5 years
7.50%
₹2,89,990
Year 5
- One FD can mature every year.
- Maturing amounts can be reinvested at new rates.
- The investor avoids locking the full amount into one tenure.
- This strategy is useful for retirees and conservative investors.
How to Avoid Common Mistakes While Selecting FDs
While selecting FDs, we can avoid mistakes by reviewing rates, penalties, tax forms, deposit limits, and real returns before investing or renewing a fixed deposit.
Mistake
Simple Fix
Auto-renewing without checking rates
Compare rates before renewal.
Breaking an FD early without checking penalty
Check the premature withdrawal rule first.
Ignoring Form 15G or 15H
Submit the right form if eligible.
Putting all money into one large FD
Split deposits by goal, tenure or bank.
Choosing an NBFC FD only for a higher rate
Check credit rating and risk.
Ignoring real returns
Review post-tax and inflation-adjusted return.
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Got Questions?
View All FAQsA fixed deposit calculator is an online tool that estimates FD maturity value and interest earned using amount, rate, tenure and compounding frequency.
For cumulative FDs, interest is compounded. For short-tenure or payout FDs, simple interest may be used.
Yes. FD interest is generally added to income and taxed as per the applicable income tax slab.
TDS may apply when annual interest crosses the prescribed threshold. The threshold and rate can change, so users should check current tax rules.
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