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Simple vs Compound Interest Calculator

Compare linear growth vs exponential compounding power with customizable frequencies (Monthly, Quarterly, Annual).

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Simple vs Compound Interest Calculator

Compare linear growth vs exponential compounding power with customizable compounding frequencies

₹
₹5,000₹10,00,000₹25,00,000₹50,00,000+
%
Yrs
1 Yr5 Yrs10 Yrs20 Yrs30 Yrs

Indian bank fixed deposits and recurring deposits standardly compound Quarterly (4x/year).

Linear GrowthP + (P × R × T)

Simple Interest (SI)

₹1,42,500

Interest calculated solely on the original principal.

Principal:₹1,00,000
Total Interest Earned:₹42,500
Effective Annual Return:8.5%
Exponential Compounding+₹9,779 Extra Gain

Compound Interest (CI)

₹1,52,279

Interest on interest generates an accelerating wealth snowball.

Principal:₹1,00,000
Total Compounded Interest:₹52,279
Compound Advantage:+23.0% higher returns

Corpus Breakdown Comparison

Principal (₹1,00,000)Compounded Interest (₹52,279)

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Interest income from fixed deposits, corporate bonds, and savings accounts is subject to TDS under Section 194A and personal tax slabs. Let Digital Bharat Law structure your investment vehicles for tax efficiency.

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Mathematical & Financial Engineering Logic Advisor

Compounding Mechanics & Real Rate of Return Specialist · Digital Bharat Law

Suggested Questions for this Tool:

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Statutory Guide & Methodology

Understanding Simple vs Compound Interest Calculator

Understanding the mathematical divergence between linear Simple Interest (SI) and exponential Compound Interest (CI) is the foundation of wealth accumulation.

While Simple Interest calculates returns purely on the original principal, Compound Interest calculates returns on both the principal and previously accumulated interest ('interest on interest'). Increasing compounding frequency (annual, quarterly, monthly, daily) elevates the Effective Annual Rate (EAR).

Core Calculation FormulaOfficial Rule
Simple: SI = (P × R × T) ÷ 100 | Compound: A = P × (1 + r/n)^(n × t)
P (Principal): Initial invested capital
R / r: Nominal annual interest rate
T / t: Time period in years
n (Frequency): Compounding periods per year: Annual (1), Semi-Annual (2), Quarterly (4), Monthly (12), Daily (365)

* Effective Annual Rate (EAR) = (1 + r/n)^n - 1.

Key Regulatory Rules & Thresholds (FY 2025–27)

Essential departmental provisions, tax brackets, and statutory compliance mandates.

Exponential Wealth Divergence

3x Divergence

On ₹10 Lakhs at 10% for 25 years: Simple interest generates ₹25 Lakhs (Total ₹35L); Compound interest generates ₹98.3 Lakhs (Total ₹1.08 Crore)!

Compounding Frequency Effect

EAR Impact

More frequent compounding yields higher effective returns. A 10% rate compounded daily yields an effective annual rate of 10.516%.

Loan Interest Mechanics

Debt Trap

Banks charge compound interest on credit cards and personal loans; paying only the minimum balance triggers devastating compound debt.

Long Time Horizons

Compounding

Compound interest displays its most dramatic acceleration in the final 5–10 years of a 20+ year horizon.

Frequently Asked Questions

Authoritative answers to common questions verified by our accredited legal & compliance panel.

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