Compound Interest Calculator

Accurate compounding with optional recurring contributions. Supports Daily, Monthly, Quarterly, and Yearly compounding. Export results and visualize growth.

Initial Principal

Annual Interest Rate (%)

Duration (years)

Compounding Frequency

Recurring Contribution (optional)

Contribution Frequency

Contribution Timing

Currency

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Assumptions: year = 365 days; monthly = every 30 days; quarterly = every 91 days. Contributions are added at the selected timing.

Final Balance

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Total Contributions

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Total Interest

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Breakdown (summarized)

Show:

Period	Start Balance	Contributions	Interest Earned	End Balance