Savings Calculator
Estimate how a starting balance grows with regular contributions and compound interest — or flip it around and find how much you need to save each period to reach a goal.
$14524.99
Final balance
$13000.00
Total contributions
$1524.99
Interest earned
This is an estimate that assumes a constant rate of return and on-time contributions every period. Real savings accounts and rates vary — this is not financial advice.
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How to use savings calculator
- 1Enter your starting balance.
- 2Enter your regular contribution amount and how often you'll make it.
- 3Enter the annual interest rate and how many years you're saving for.
- 4Compare your final balance against how much came from contributions versus interest.
- 5To plan for a target instead, choose "How much to save for a goal" and enter the goal amount.
About this tool
This calculator answers a common planning question: if I start with this much, add this much regularly, and earn this rate, what will I end up with? It splits the final balance into two parts — the total of everything you personally contributed, and the interest earned on top of it — so you can see how much of your growth actually came from compounding rather than your own deposits.
Goal mode works backwards with the same formula: it finds the regular contribution that, with your starting balance and interest, reaches the goal by the end of the period — for example about $282 a month to turn $1,000 into $20,000 in 5 years at 4%.
Contributions are added at the start of each period before that period's interest is applied, which is a common convention for scheduled savings and slightly favors your final balance compared with contributing at the end of the period.
As with any projection, this assumes a constant interest rate and that every contribution happens on schedule — real accounts have rates that change and life happens. Use it to compare scenarios and set a rough goal, not as a guarantee.
Frequently asked questions
Both use the same compounding math. This one is built around a recurring contribution as the main input — ideal for planning a savings goal you're funding a bit at a time — while the Compound Interest Calculator is framed around growing a lump sum, with contributions as an optional extra.
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