Step-by-step instructions
- Enter or select Starting principal.
- Enter or select Annual interest rate (%).
- Enter or select Years.
- Enter or select Compounds per year.
- Tap Calculate.
- Review the result shown directly below the calculator.
Compound Interest Calculator
Calculate compound growth from principal, rate, years and compounding frequency.
How to use the Compound Interest Calculator
Calculate compound growth from principal, rate, years and compounding frequency.
What the inputs mean
- Starting principal
- Enter the value requested by this field label.
- Annual interest rate (%)
- Enter the percentage value requested by the calculator.
- Years
- Enter the value requested by this field label.
- Compounds per year
- Enter the value requested by this field label.
Formula or calculation method
Compound growth applies the interest rate repeatedly over the selected number of compounding periods.
Example
Try entering realistic values for Starting principal and Annual interest rate (%), then tap Calculate to see how the result changes.
How to understand the result
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.