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Calculate Compound Interest

Estimate future value from principal, rate, time, and compounding frequency

Enter values and click Calculate

This is a general compound-interest formula tool for estimates only. It is not investment advice, a savings product quote, or a guarantee of returns.

About This Tool

Compound Interest Calculator uses the standard compound interest formula to estimate future value and total interest from principal, annual rate, years, and compounding frequency. All math is processed locally in your browser. Results are calculations only β€” not financial advice.

How to Use

  1. Enter the principal
  2. Enter the annual rate
  3. Enter the number of years
  4. Choose compounding frequency
  5. Click Calculate to see future value and interest

Common Use Cases

  • Compare compounding frequencies
  • Rough savings growth estimates
  • Classroom math examples
  • Check spreadsheet formulas
  • Scenario planning (not advice)

FAQ

Q1: What formula is used?

FV = P Γ— (1 + r/n)^(nΓ—t), where r is annual rate, n is compounds per year, and t is years.

Q2: Is this investment advice?

No. It only runs the formula. Fees, taxes, and market risk are not included.

Q3: Can rate be zero?

Yes. Then future value equals the principal.

Q4: Are numbers uploaded?

No. Calculations are processed locally in your browser.

Q5: Does it support continuous compounding?

Not in this version. Choose yearly, quarterly, monthly, or daily.

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