Calculate future value using Simple Interest, Compound Interest or FD (Quarterly Compounding)
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Fill in your investment parameters below.
Future Value
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₹ Maturity Amount
Total Returns
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₹ Interest Earned
Annualized Return
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% per Year (Effective)
Return on Investment
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% Total ROI
Calculation Steps
1
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Auto-calculates as you type. Year-by-year breakdown + comparison included.
Return Comparison at Same Inputs
Simple Interest
SI
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Compound Interest
CI Annual
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Fixed Deposit
FD Quarterly
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Values shown are Future Value (₹). Highlighted = best return at this rate & period.
Year-by-Year Growth Table
Year
Balance (₹)
Interest Earned (₹)
Cumulative Return (%)
What is an Investment Return Calculator?
An investment return calculator is a financial planning tool that helps you estimate how much your money will grow over time at a given rate of return. By entering your principal amount, annual return rate, and investment duration, the calculator applies the chosen mathematical formula — simple interest, compound interest, or fixed deposit quarterly compounding — and instantly shows you the future value of your investment.
Whether you are comparing an FD with a mutual fund, planning a long-term investment goal, or simply curious about the power of compounding, this calculator gives you precise, formula-based projections in seconds. It is particularly useful for Indian investors comparing FD rates (6–7%), debt mutual fund returns (7–9%), and equity mutual fund returns (10–14%).
How to Calculate Investment Returns — Formulas Explained
There are three standard formulas used to calculate investment growth, each suited to a different type of investment product.
Simple Interest
FV = P + (P × r × t / 100) Returns = P × r × t / 100
Compound Interest
FV = P × (1 + r/100)^t Compounded annually
FD (Quarterly)
FV = P × (1 + r/400)^(4t) Compounded 4× per year
Where: P = Principal amount, r = Annual interest rate (%), t = Time in years. The FD formula uses r/400 because the quarterly rate is r/4, and it compounds 4t times.
Simple Interest vs Compound Interest vs Fixed Deposit Returns
The table below shows how the same ₹1,00,000 investment at 8% p.a. grows under each method. Notice how compounding accelerates growth over longer periods.
Investment Type
5 Years (FV)
5 Yr Returns
10 Years (FV)
10 Yr Returns
Simple Interest
₹1,40,000
₹40,000 (40%)
₹1,80,000
₹80,000 (80%)
Compound Interest (Annual)
₹1,46,933
₹46,933 (46.9%)
₹2,15,892
₹1,15,892 (115.9%)
FD (Quarterly)
₹1,48,451
₹48,451 (48.5%)
₹2,20,379
₹1,20,379 (120.4%)
At 10 years, FD quarterly compounding generates nearly ₹4,500 more than annual compounding and ₹40,379 more than simple interest — on the same ₹1 lakh principal. The advantage of compounding grows exponentially with time.
Choosing the Right Return Rate
Selecting a realistic return rate is the most important step in investment planning. Here are typical return rates for common Indian investment options:
Investment Option
Typical Return Rate
Compounding Type
Risk Level
Bank Fixed Deposit (FD)
6.5–7.5% p.a.
Quarterly
Very Low
Post Office Schemes (NSC, PPF)
7.1–8.2% p.a.
Annual / Compounded
Very Low
Debt Mutual Funds
7–9% p.a.
Daily (NAV-based)
Low–Medium
Balanced / Hybrid Funds
9–11% p.a.
Market-linked
Medium
Large-cap Equity Mutual Funds
10–12% p.a.
Market-linked
Moderate–High
Flexi-cap / Multi-cap Funds
11–14% p.a.
Market-linked
High
For long-term goals (10+ years), equity mutual funds have historically delivered 12–14% CAGR in India. For capital protection goals within 1–3 years, FDs and debt funds are more appropriate.
Worked Examples
Example 1 — FD
₹50,000 for 3 Years at 7% FD
FV = 50000 × (1 + 7/400)^12
₹61,443
Returns: ₹11,443 (22.9%)
Example 2 — CI
₹2,00,000 for 10 Years at 12% CI
FV = 200000 × (1.12)^10
₹6,21,170
Returns: ₹4,21,170 (210.6%)
Example 3 — Equity MF
₹5,00,000 for 15 Years at 14% CI
FV = 500000 × (1.14)^15
₹37,37,239
Returns: ₹32,37,239 (647.4%)
Example 3 illustrates why equity mutual funds are powerful wealth-building tools for patient, long-term investors. Starting with ₹5 lakh and assuming a 14% annual return, the corpus grows more than 7× in 15 years.
Frequently Asked Questions
What is the difference between simple and compound interest?
Simple interest is calculated only on the original principal amount. Compound interest is calculated on the principal plus any interest already earned, meaning your interest itself earns interest over time. For the same rate and period, compound interest always produces a higher return than simple interest, with the gap widening the longer the investment period. For example, ₹1,00,000 at 8% for 10 years gives ₹80,000 under SI vs ₹1,15,892 under CI.
Which investment type gives the best returns?
Over the long term, equity mutual funds with compound growth (12–14% p.a.) typically deliver the highest returns, though they carry market risk. Fixed Deposits offer guaranteed returns (6–7.5% p.a.) with quarterly compounding — ideal for risk-averse investors. Debt mutual funds fall in between (7–9% p.a.). The best choice depends on your risk tolerance, investment horizon, liquidity needs, and tax situation.
How accurate are these return calculations?
The calculations use standard mathematical formulas and are mathematically precise for the inputs provided. However, real-world returns may differ due to taxes (TDS on FD interest above ₹40,000 p.a., LTCG/STCG on mutual fund gains), exit loads, fund management charges (expense ratio), and market fluctuations. Use these figures for planning, comparison, and goal-setting rather than guaranteed projections.
What return rate should I use for mutual funds?
As a general planning guide: Large-cap equity funds: 10–12% p.a.; Flexi-cap/multi-cap funds: 11–13% p.a.; Small-cap funds: 12–15% p.a. (higher risk); Debt mutual funds: 7–9% p.a.; Liquid funds: 6–7% p.a. For conservative planning, use the lower end of these ranges. Past returns do not guarantee future performance — SEBI mandates this disclaimer for all mutual fund communications.
Can I use this for SIP calculations?
This calculator is designed for lump-sum (one-time) investments. For Systematic Investment Plans (SIPs) where you invest a fixed amount every month, a dedicated SIP calculator using the future value of an annuity formula is required: FV = P × [((1 + r)^n - 1) / r] × (1 + r). Visit our SIP Calculator for accurate SIP projections.
Does this calculator include inflation adjustment?
No, this calculator shows nominal returns without adjusting for inflation. To estimate your real (inflation-adjusted) return, subtract the inflation rate from your nominal return rate. For example, if your investment grows at 10% p.a. and inflation is 6%, your real return is approximately 4% p.a. India's average CPI inflation has been around 5–6% over the past decade, so factor this in for long-term planning.
What is annualized return vs total return?
Total return is the overall percentage gain over the full investment period: (Final Value − Principal) / Principal × 100. Annualized return (CAGR) is the equivalent yearly rate that produces the same total return when compounded annually. For example, doubling your money in 6 years gives a 100% total return but only a ~12.25% annualized return. Annualized return is more useful for comparing investments of different durations.
Is my data stored anywhere?
No. All calculations happen entirely in your browser using JavaScript. No data is sent to any server, stored in a database, or shared with any third party. You can use this calculator with complete privacy — your financial details never leave your device.