Compound Interest Calculator - Calculate CI Online
Calculate compound interest on your investments. See how your money grows with the power of compounding over time.
Calculate Compound Interest
Initial investment amount
Annual interest rate
Investment duration
Total Amount
₹2,70,704
Interest Earned
₹1,70,704
Principal
₹1,00,000
Breakdown
How to Use This Compound Interest Calculator
Using our Compound Interest Calculator is simple and takes just a few seconds. Enter your values using the sliders or input fields above, and the results will update instantly — no need to click a calculate button.
All calculations are performed in your browser using standard financial formulas. Your data is never stored or transmitted to any server, ensuring complete privacy.
The results shown are estimates based on the inputs you provide. For precise figures, consult with your bank or financial advisor. Use this tool for quick comparisons, planning, and understanding how different variables affect your financial outcomes.
Formula & Explanation
A = P × (1 + r/n)^(n×t)Where A = Final amount, P = Principal, r = Annual interest rate / 100, n = Number of times interest is compounded per year, t = Time in years.
Calculation Examples
10-Year Investment
₹1 Lakh at 10% for 10 years (monthly compounding)
Amount: ₹2,70,704 | Interest: ₹1,70,704
Benefits
- Understand power of compounding
- Compare investment options
- Plan long-term wealth creation
- Visualize growth over time
- Make informed decisions
Use Cases
- Investment planning
- FD comparison
- Wealth projection
- Education planning
- Retirement planning
About Compound Interest Calculator
Our Compound Interest Calculator shows you the power of compounding. Calculate how your investment grows when interest is earned on both the principal and accumulated interest. Understand why Einstein called compound interest the eighth wonder of the world.
Frequently Asked Questions
Simple interest is calculated only on the principal amount — ₹1 lakh at 10% for 5 years earns ₹50,000 total. Compound interest earns interest on interest — the same ₹1 lakh at 10% compounded annually for 5 years grows to ₹1,61,051 (₹61,051 interest). The difference becomes dramatic over long periods: 20 years gives ₹2 lakh (simple) vs ₹6.7 lakh (compound). Use the free Compound Interest Calculator on AbacusHand to calculate your exact result instantly.
Compounding frequency refers to how often interest is calculated and added to principal: annually, semi-annually, quarterly, monthly, or daily. More frequent compounding = higher effective returns. For ₹1 lakh at 10% for 1 year: annual compounding gives ₹1,10,000; quarterly gives ₹1,10,381; monthly gives ₹1,10,471; daily gives ₹1,10,516. Indian banks typically compound quarterly or monthly. Use the free Compound Interest Calculator on AbacusHand to calculate your exact result instantly.
At 10% compound interest per annum with annual compounding, ₹1 lakh grows to ₹2,59,374 in 10 years — meaning your money 2.6x in 10 years. With monthly compounding, it becomes ₹2,70,704. At 12% (typical equity mutual fund return), ₹1 lakh becomes ₹3,10,585 in 10 years. This is the power of compounding that makes starting early so important. Use the free Compound Interest Calculator on AbacusHand to calculate your exact result instantly.
The Rule of 72 is a quick formula to estimate how long it takes to double your money: Doubling Time (years) = 72 / Interest Rate. At 8% interest (like EPF), money doubles in 9 years. At 12% (equity funds), money doubles in 6 years. At 6% (savings account), it takes 12 years. So ₹1 lakh at 12% becomes ₹2 lakh in 6 years, ₹4 lakh in 12 years, and ₹8 lakh in 18 years. Use the free Compound Interest Calculator on AbacusHand to calculate your exact result instantly.
Daily compounding gives marginally higher returns than monthly compounding, but the difference is tiny in practice. On ₹1 lakh at 8% for 1 year: monthly compounding gives ₹1,08,300 while daily compounding gives ₹1,08,328 — a difference of just ₹28. Over 10 years on ₹10 lakh, the difference is about ₹3,500. For practical investment decisions, the rate of interest matters far more than compounding frequency. Use the free Compound Interest Calculator on AbacusHand to calculate your exact result instantly.