Savings calculator with compound interest, annual and monthly contributions, tax rate, schedule, and ending balance. Estimate how your savings can grow over time.
What Is a Savings Calculator?
A savings calculator estimates how a starting balance grows with compound interest and regular contributions, and separates the final balance into deposits versus interest earned.
You can model an initial deposit, add either annual or monthly contributions with their own growth rate, choose a compounding frequency, and apply a tax rate to the interest. Whether you're tracking a fixed monthly deposit, like a regular savings account, or a lump sum left to grow, the chart and accumulation schedule show how the balance builds year by year.
Savings Growth Example
Start with a $10,000 deposit, add $200 a month, and earn 4% interest compounded monthly for 10 years: the ending balance is about $44,364. Of that, $34,000 came from your own deposits and contributions, and about $10,364 is interest earned.
Planning Regular Deposits and Taxes on Interest
Use the annual contribution increase field if you plan to save more each year, for example matching a raise. If your account is taxed on interest rather than tax-sheltered (unlike a tax-free ISA or similar account in your country), enter a tax rate so the projected balance reflects what you actually keep, not the pre-tax interest.
