Compound Interest Calculator
See how your investments can grow over time and what their real value will be after inflation.
🎯 Choose Calculator Mode
Switch between calculating returns or planning your investment goal
💡 How much money do you want to accumulate?
Periodic Investments (Optional)
💡 Increase investment by this % annually (e.g., 10% = ₹5000 becomes ₹5500 in year 2)
Maturity Value
₹ 0
Real Value (after inflation): ₹ 0
💰 Investment Required to Reach Goal
One-time Investment Needed
₹0
Invest this amount once today
Monthly SIP Required
₹0
Invest this amount every month
📊 Goal Breakdown:
📊 Simple Interest vs Compound Interest
Simple Interest
₹0
Linear growth
Compound Interest
₹0
Exponential growth
You Earn Extra with Compounding:
₹0
Year-wise Growth Breakdown
| Year | Opening Balance | Additions | Interest Earned | Closing Balance | Growth % |
|---|
🇮🇳 Real Indian Investment Examples
Click on any example to auto-fill the calculator
Fixed Deposit
Safe & guaranteed returns
Investment: ₹5,00,000
Tenure: 5 years
Interest: 7.5% p.a.
Compounding: Quarterly
Maturity: ~₹7,22,000
PPF Investment
Tax-free long-term wealth
Annual Deposit: ₹1,50,000
Tenure: 15 years
Interest: 7.1% p.a.
Tax Benefit: EEE Status
Maturity: ~₹40,68,000
Recurring Deposit
Disciplined monthly saving
Monthly: ₹5,000
Tenure: 10 years
Interest: 6.8% p.a.
Compounding: Quarterly
Maturity: ~₹8,48,000
Senior Citizen FD
Higher rates for seniors
Investment: ₹10,00,000
Tenure: 5 years
Interest: 8.5% p.a.
Extra: +0.5% for seniors
Maturity: ~₹15,17,000
Tax Saver FD
Save tax under 80C
Investment: ₹1,50,000
Lock-in: 5 years
Interest: 7% p.a.
Tax Saved: ~₹46,800
Maturity: ~₹2,11,000
Child Education Fund
Long-term goal planning
Initial: ₹1,00,000
Monthly SIP: ₹10,000
Tenure: 18 years
Expected: 8% p.a.
Maturity: ~₹47,85,000
🎯 Popular Financial Goals
💡 Investment Tips
Diversify: Split across FD, PPF, and equity
Long-term: Compound interest works best with time
Tax-smart: Use 80C deductions (PPF, ELSS)
⚙️ How This Calculator Works
Step-by-step guide to calculate your compound interest returns
Enter Initial Investment
Use the slider or type your starting amount (₹1,000 to ₹1 crore). This is your principal amount - the money you invest today.
📝 Examples:
• Fixed Deposit: Enter your FD amount (e.g., ₹5,00,000)
• RD: Set to ₹0 if you'll add monthly
• PPF: Can be ₹0 or initial lump sum
Set Interest & Inflation Rates
Adjust the interest rate slider (1-25%) to match your investment. Set inflation rate to see real returns after accounting for purchasing power loss.
📊 Current Indian Rates (Oct 2025):
Bank FD:
• SBI: 7.00% - 7.50%
• HDFC: 7.25% - 7.75%
• ICICI: 7.10% - 7.60%
Other Schemes:
• PPF: 7.1% p.a.
• NSC: 7.7% p.a.
• SCSS: 8.2% p.a.
Inflation: Current ~5.5% to 6.5%
Choose Time Period & Compounding
Select investment tenure (1-50 years) and how often interest compounds. More frequent compounding = higher returns!
🔄 Compounding Impact:
| Frequency | ₹1L @ 8% for 10 yrs |
|---|---|
| Yearly | ₹2,15,892 |
| Half-Yearly | ₹2,19,112 |
| Quarterly | ₹2,20,804 |
| Monthly | ₹2,22,196 |
Add Periodic Investments (Optional)
For SIPs, RDs, or regular PPF contributions, enter additional amount and frequency (monthly/yearly).
💡 Use Cases:
Recurring Deposit: Initial = ₹0, Monthly = ₹5,000
PPF: Initial = any, Yearly = up to ₹1.5L
SIP + Lump Sum: Initial = ₹50,000, Monthly = ₹10,000
View Instant Results
Calculator instantly shows: Maturity Value, Real Value (after inflation), Principal, Total Additions, Interest Earned, and a visual doughnut chart.
📈 What You'll See:
• Maturity Value: Total amount you'll receive
• Real Value: What it's worth in today's money
• Year-wise Table: Growth breakdown per year
• Visual Chart: Principal vs Additions vs Interest
📐 The Compound Interest Formula
A = P(1 + r/n)^(nt)
Where:
- A = Final Amount (Maturity Value)
- P = Principal (Initial Investment)
- r = Annual Interest Rate (decimal)
- n = Compounding frequency per year
- t = Time period in years
Example: ₹1L @ 8% for 10 years quarterly = ₹1,00,000 × (1 + 0.08/4)^(4×10) = ₹2,20,804
🌟 Why Use CalcWise Compound Interest Calculator?
The most comprehensive and accurate compound interest calculator designed for Indian investors
India-Specific
Tailored for Indian investments like PPF, FD, RD, and NSC with current interest rates and INR currency.
✓ Why It Matters:
- • Pre-filled Indian bank rates
- • Supports all Indian schemes
- • Real examples (SBI, HDFC, etc.)
Inflation Adjusted
See both nominal and REAL returns. Understand true purchasing power of your future wealth.
✓ Unique Feature:
- • Real value calculator
- • Current 5-6% inflation rate
- • True wealth projection
Year-wise Breakdown
Complete year-by-year growth table showing opening, additions, interest, closing balance.
✓ Detailed View:
- • Track progress yearly
- • See compounding magic
- • Print-friendly table
Multiple Compounding
Choose from Yearly, Half-Yearly, Quarterly, or Monthly compounding to match your scheme.
✓ Flexibility:
- • 4 compounding options
- • See impact on returns
- • Accurate calculations
100% Free
Completely free forever. No sign-up, no hidden charges, no premium features.
✓ Always Free:
- • All features unlocked
- • No registration needed
- • Unlimited calculations
Mobile Optimized
Perfect on phones, tablets, and desktops. Calculate on-the-go with touch-friendly interface.
✓ Responsive:
- • Works on all devices
- • Fast loading
- • Easy sliders
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💡 5 Pro Tips to Maximize Compound Interest
Expert strategies to grow your wealth faster with compound interest
Tip #1: Start Early, Stay Long
Time is your biggest ally. Starting 5 years earlier can double your final corpus even with the same monthly investment.
📊 Real Example:
Person A (Age 25):
• Invests ₹10,000/month
• For 35 years @ 12%
Maturity: ₹6.45 Crore
Person B (Age 35):
• Invests ₹10,000/month
• For 25 years @ 12%
Maturity: ₹1.89 Crore
Result: Person A gets 3.4x MORE with just 10 years extra!
Tip #2: Maximize Compounding Frequency
More frequent compounding = Higher returns. Choose monthly over yearly compounding when possible.
💰 Same Investment, Different Returns:
| Compounding | ₹5L @ 8% for 10 years | Extra Earned |
|---|---|---|
| Yearly | ₹10,79,460 | - |
| Quarterly | ₹11,04,020 | +₹24,560 |
| Monthly | ₹11,10,980 | +₹31,520 |
Tip: Choose banks offering monthly compounding FDs for maximum returns.
Tip #3: Reinvest All Dividends & Interest
Never withdraw interest or dividends during the tenure. Reinvest everything to benefit from compounding on compounding.
🎯 Growth of ₹1 Lakh @ 10% for 20 years:
❌ Withdrawing Interest Yearly:
• Year 1-20: Get ₹10,000/year
• Total interest: ₹2,00,000
Final: ₹1,00,000 + ₹2,00,000 = ₹3,00,000
✓ Reinvesting Everything:
• Compound for 20 years
• Let interest earn interest
Final: ₹6,72,750
Difference: Reinvesting earns you 2.24x MORE!
Tip #4: Increase Contributions Annually (Step-up)
As your income grows, increase your monthly SIP or yearly PPF contribution by 10-15% annually for exponential growth.
🚀 SIP with Annual Step-up:
Fixed SIP (₹10,000/month):
• No increase for 20 years
• @ 12% returns
Maturity: ₹99.91 Lakh
Step-up SIP (10% annual increase):
• Starts ₹10K, becomes ₹61K by year 20
• @ 12% returns
Maturity: ₹2.47 Crore
Pro Tip: Increase SIP by 10% after every salary hike or bonus.
Tip #5: Don't Break Investments Midway
The last few years contribute the most to your corpus. Breaking investment in year 12 of a 15-year plan can cost you 30-40% of potential returns.
⚠️ Cost of Early Withdrawal:
Scenario: ₹10,000/month @ 12% SIP
| After 10 years: | ₹23.23 Lakh |
| After 15 years: | ₹50.04 Lakh |
| After 20 years: | ₹99.91 Lakh |
Notice: Last 5 years (15→20) add ₹49.87 Lakh - almost HALF of total corpus!
Breaking at year 12 means losing ~35% of potential wealth.
🛡️ Protection Tips:
• Maintain 6-month emergency fund separately
• Have insurance to avoid withdrawing for emergencies
• Lock long-term investments in PPF/NSC (penalty for early exit)
🎁 BONUS TIP: Diversify Your Compounding Investments
Don't put all eggs in one basket. Spread across:
Safe (40%)
PPF, FD, NSC
Moderate (30%)
Balanced Funds
Growth (25%)
Equity SIPs
Liquid (5%)
Emergency Fund
❓ Frequently Asked Questions
📐 What is the compound interest formula?
The formula is A = P(1 + r/n)^(nt) where A is final amount, P is principal, r is annual rate, n is compounding frequency per year, and t is time in years.
Example Calculation:
₹1,00,000 @ 8% quarterly for 10 years
= ₹1,00,000 × (1 + 0.08/4)^(4×10)
= ₹2,20,804
📉 How does inflation affect returns?
Inflation reduces purchasing power. If you earn 8% but inflation is 6%, your real return is only ~2%. This calculator shows both nominal and real values.
Example:
• Nominal maturity: ₹2,20,804
• After 6% inflation: ₹1,23,000
Purchasing power reduced by 44%!
🏦 Is this accurate for PPF and RD?
Yes! For PPF, set yearly additions. For RD, set initial to ₹0 and add monthly. Compounding frequency matches actual scheme rules.
Setup Guide:
PPF: Initial = any, Yearly = ₹1.5L max
RD: Initial = ₹0, Monthly = your amount
💰 How is FD interest taxed in India?
FD interest is added to income and taxed per your slab (5-30%). TDS @ 10% if interest >₹40,000/year (₹50,000 for seniors). PPF interest is tax-free.
Tax Rates 2025:
• 5% slab: ₹3-7 lakh
• 20% slab: ₹10-12 lakh
• 30% slab: Above ₹15 lakh
⏰ What's better: lump sum or SIP?
Lump sum works better if you have idle money. SIP is better for salaried people - easier on budget and reduces timing risk through rupee cost averaging.
Choose Based On:
Lump sum: Have windfall, bonus, or maturity
SIP: Regular salary, disciplined saving
🔒 Can I withdraw PPF before 15 years?
Partial withdrawal allowed after 6 years (up to 50% of balance). Premature closure allowed after 5 years only in special cases with penalty.
PPF Rules:
• Min deposit: ₹500/year
• Max deposit: ₹1.5L/year
• Lock-in: 15 years
• Loan: Allowed from 3rd-6th year
📊 Which bank offers highest FD rates?
Small finance banks offer 8-9% for general, 8.5-9.5% for seniors. Major banks: SBI 7-7.5%, HDFC 7.25%, ICICI 7.1%. Rates change quarterly.
Top Rates (Oct 2025):
• Suryoday SFB: 9.00%
• Ujjivan SFB: 8.75%
• ESAF SFB: 8.50%
🎯 How much should I save per month?
Financial experts recommend saving 20-30% of gross income. Use 50-30-20 rule: 50% needs, 30% wants, 20% savings/investments.
Example (₹50K salary):
• Needs: ₹25,000 (rent, bills)
• Wants: ₹15,000 (entertainment)
• Savings: ₹10,000 (SIP, PPF)
⚠️ What if I miss PPF/SIP payment?
PPF: Account becomes inactive if no deposit in a year. Reactivate with ₹500 + ₹50/year penalty. SIP: Usually 2-3 missed payments allowed, then auto-stops.
Action Plan:
• Set auto-debit for SIP
• Keep emergency fund active
• Resume as soon as possible
🧮 Is this calculator 100% accurate?
Yes, we use standard financial formulas. However, actual returns may vary due to: rate changes, tax implications, penalties, or scheme-specific rules.
Accuracy Notes:
• Formula: Industry-standard
• Rates: User-entered (verify with bank)
• Tax: Not calculated (FD interest taxable)
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⚠️ Important Disclaimer
Investment Risk Warning: This calculator provides estimates based on the inputs you provide. Actual returns may vary due to changes in interest rates, market conditions, penalties, or scheme-specific rules. Past performance is not indicative of future results.
Tax Information: The calculations shown do not account for tax implications. In India, interest income from Fixed Deposits and other investments (except PPF) is taxable as per your income tax slab. TDS may be deducted by banks if applicable. Consult a Chartered Accountant for accurate tax planning.
Not Financial Advice: This tool is for informational and educational purposes only. It does not constitute financial, investment, legal, or tax advice. Always consult with qualified financial advisors before making investment decisions.
Data Accuracy: While we use industry-standard formulas and strive for accuracy, CalcWise assumes no liability for errors, omissions, or financial losses arising from the use of this calculator. Verify all calculations independently.
Privacy Notice: This calculator operates entirely in your browser. No financial data is transmitted to or stored on our servers. Your information remains completely private.
Last Updated: October 2025 | Interest Rates: As per current market conditions | Inflation Rate: Based on RBI projections