How do you calculate compound interest?

Formula: A = P (1 + r/n)^(nt), where P = principal, r = annual rate, n = compounds per year, and t = time in years.

What is the difference between monthly and yearly compounding?

Higher compounding frequency (e.g., monthly) slightly increases the effective annual rate (EAR), resulting in a higher final amount.

Yes. After calculating, click the ‘Download CSV’ button to export the schedule.

Best Compound Interest Calculator (Free, Fast & Accurate) | SmartWebToolsPro

Principal amount

Currency

Compound interest rate (% per year)

Compounding frequency

Time

Time unit

Principal

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Total Interest

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Total Value

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Effective Annual Rate (EAR)

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This table gives the principal value and total value for the inputs above.

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Formula: A = P × (1 + r/n)^n×t
P = Principal, r = annual rate, n = compounds/year, t = time in years.

Rows

#	Starting Balance	Interest	Ending Balance
Run a calculation to see the schedule…