Compound interest
Finance / FREE CALCULATOR
Estimate growth with a fixed rate and no additions, withdrawals, fees or tax.
Your answer starts here.
Enter your values and select Calculate to see the result and any available breakdown.
How to use this calculator
- Enter starting balance. Use the unit shown beside the field.
- Enter annual rate (%). Use the unit shown beside the field.
- Enter years. Use the unit shown beside the field.
- Enter compounds per year. Use the unit shown beside the field.
- Select Calculate and review the result. Select Reset to restore the example inputs.
How the calculation works
Final balance = P × (1+r/(100m))^(my).
Worked example
1,000 at 10% compounded annually for two years becomes 1,210.
Understand your result
Use this result together with the worked example and the assumptions below. Estimate growth with a fixed rate and no additions, withdrawals, fees or tax.
Assumptions and limitations
Estimate growth with a fixed rate and no additions, withdrawals, fees or tax. Check units and assumptions before using the result in a decision. Results are rounded for display.
Questions about this tool
What does this tool calculate?
Estimate growth with a fixed rate and no additions, withdrawals, fees or tax.
What should I check before using the answer?
Estimate growth with a fixed rate and no additions, withdrawals, fees or tax. Check units and assumptions before using the result in a decision.
Related guides
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