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Science-Based Financial Tool
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Compound Interest Calculator

Calculate compound interest and see your investment grow over time

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Exponential
Growth Power
Time Based
Key Factor
Instant Results
No Sign-up Required
Free Forever

Compound Interest Calculator

Calculate your investment growth over time

Investment Details

Additional amount added each month
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Compound Interest Facts

Understanding the power of compounding

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A = P(1+r/n)^nt
Formula

Compound interest

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2x-3x
Growth Potential

20-30 years investing

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72 ÷ rate
Rule of 72

Years to double

Time
Key Factor

Most important

💡 Pro Tip: Compound interest is the eighth wonder of the world. He who understands it, earns it; he who doesn't, pays it. - Albert Einstein

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How to Use This Calculator

Step-by-step guide to get started

  • Enter principal amount
  • Set annual interest rate
  • Choose compounding frequency
  • Specify time period
  • View total returns

Quick Tip: Follow these steps in order for the best experience

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How It Works

Understanding compound interest calculation

Uses the formula A = P(1 + r/n)^(nt), where P is principal, r is rate, n is compounding frequency, and t is time in years.

Science-Backed

Based on proven research

Easy to Follow

Simple steps for everyone

Instant Results

Get answers immediately

💡 Pro Tip: Compound interest formula: A = P(1 + r/n)^(nt) where P=principal, r=rate, n=frequency, t=time

Frequently Asked Questions

Find answers to common questions about compound interest

Compound interest is interest calculated on the initial principal and accumulated interest from previous periods.

Still have questions? Feel free to leave a comment below and we'll help you out!

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