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Home›Tools›Money & Finance›Compound Interest Calculator
FULL FINANCE CALCULATOR

Understand how interest compounds over time.

Estimate the future value of an investment or deposit with annual, quarterly, monthly or daily compounding and optional inflation context.

Four compounding choicesInterest earnedEffective annual rateInflation context

Set your principal and compounding assumptions

Run the full standard calculation without signing in. Save work or use Pro target planning when needed.

✓
See how frequency changes growth

Principal, nominal annual rate, time and compounding frequency define this projection.

Formatting only. No currency conversion.
₹
Initial investment or deposit amount.
Nominal annual percentage rate.
Positive number of years.
Select how often interest is added.
Optional estimate of purchasing power erosion.
₹

Free: standard analysis. Pro: targets, scenarios, projects and reports.

Your performance snapshot

Start with the result. Open the details only when you need them.

FUTURE VALUE-

Enter your numbers and calculate to see the result.

READY
Interest earned -Future value - principal
Effective annual rate -(1 + r/n)^n - 1
Compounding periods -Frequency x years
Inflation-adjusted value -Future value / (1 + inflation)^years
Growth multiple -Future value / principal
Future value with extra period -Pro outputPRO
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Target planning

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Value with additional starting deposit-
Future value with extra years-
Extra growth vs standard estimate-
KEEP WORKING WITH THIS RESULTSave this result, then continue in your MPPM workspace.
My MPPM Free can save up to 3 calculations.0 of 3 used
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Why it mattersUseful for recurring reviews, reporting and learning from past decisions.
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READ THE RESULT

Compounding frequency changes the result.

More frequent interest additions may increase the effective annual rate when the nominal rate is positive.

1

Enter principal

This is the amount earning compounded interest from day one.

2

Choose rate, duration and frequency

Annual and monthly compounding use different periods.

3

Assess inflation and risk

A nominal projection is not the same as a guaranteed real return.

Future value = principal x (1 + annual rate / periods per year) ^ (periods per year x years)

What does compound interest show?

Compound interest earns interest on the principal and previously credited interest. Real-world rates, taxes and risk can change what you receive.

Assumed rate remains constantFrequency affects effective yieldInflation reduces purchasing power
RELATED TOOLS

Keep working through the decision.

Use connected calculators when the next question depends on another part of the economics.

PRACTICAL QUESTIONS

A few things worth knowing before you judge the result.

How is compounding different from simple interest?

Simple interest is earned only on principal. Compound interest also earns on previously credited interest.

Does monthly compounding guarantee more growth?

Under a fixed positive nominal rate, monthly compounding produces more than annual compounding. Actual offers can differ.

Can I use this for debt?

The formula estimates periodic growth, but actual debt amortisation and repayment schedules need a loan calculator.

Is daily compounding always exactly 365 days?

This estimate uses 365 periods per year. Real contracts may use different day-count conventions.

Important: This calculator is for planning and educational use. Real outcomes can differ because of business conditions, accounting treatment, market behavior, taxes, attribution, timing and assumptions not represented here.
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