What is this calculator?
Calculate compounded interest and the ending balance.
What can you use it for?
Use this tool to compare a financial scenario using the assumptions you control. Calculate compounded interest and the ending balance.
How to use it
- Enter starting amount.
- Enter annual rate (%).
- Enter years.
- Enter compounding per year.
- Select Calculate (or Generate for random tools).
- Read the answer and any additional results below the form. Check the units and the limits of the method.
Formula and method
Each compounding period adds interest to the balance used in the next period.
Worked example
Starting amount: 100000, Annual rate (%): 8, Years: 10, Compounding per year: 12. The result is 221,964.02345447 (future balance).
Assumptions and limits
This is a mathematical estimate using the values you enter. Confirm real product terms, fees, tax rules and dates before acting on it.
Frequently asked questions
What inputs does the Interest Calculator need?
Use starting amount, annual rate (%), years, compounding per year. Read the answer and any additional results below the form. Check the units and the limits of the method.
What assumptions apply to the Interest Calculator?
This is a mathematical estimate using the values you enter. Confirm real product terms, fees, tax rules and dates before acting on it.