Savings calculator with interest
FinanceProject how your savings will grow with monthly contributions and compound interest.
Your results
Project your future savings with compound interest and monthly contributions.
How the projection works
We use the future value formula with monthly contributions. The initial capital grows with compound interest and the monthly contributions are also capitalised.
Stay the long course
Compound interest grows over time. Even a small rate can produce dramatic differences when the horizon is long.
Frequently asked questions
Answers to the most common questions about this tool.
How is this result calculated?
It applies the relevant financial formula to the amounts, terms, and rates you enter.
Does the result include every cost?
Not necessarily; fees, taxes, insurance, and third-party charges may be excluded.
Can I use this as a final financial quote?
No. Use it to compare scenarios and confirm final terms with the relevant provider.
What information do I need to enter?
Enter amounts, rates, and time periods consistently.
What assumptions does the calculation make?
It assumes the values you enter remain constant for the selected scenario.
Sources and methodology
Methodology: Savings projection
Applies future value with initial principal, monthly contributions, annual rate, and monthly compounding.
Assumes a constant rate and periodic contributions; excludes taxes and inflation.
References
Last reviewed
July 15, 2026