Compound Interest
FinanceEstimate future value and interest earned from principal, rate, time, and compounding frequency.
- What will my savings be worth?
- How much interest will I earn?
Project a savings balance from a starting deposit, recurring contributions, compounding, and inflation assumptions.
Change the inputs that matter to your decision. Optional assumptions stay collapsed until you need them.
Set the starting balance, ongoing deposit, return assumption, and horizon.
Optionally translate the ending balance into future dollars today.
Saving $100.00 per month for 10 years grows an estimated $17,175.24 from $13,000.00 contributed.
The ending balance combines the starting deposit, $100.00 monthly deposits, and the assumed 5.0% annual rate.
Planning estimate only. Actual rates, fees, taxes, deposit timing, and account rules can change the outcome.
Practical notes about the inputs, assumptions, and result.
No. It is a scenario based on the rate and deposit timing you enter. Actual savings products and investments have different rates, fees, taxes, and rules.
It discounts the projected balance by the entered inflation assumption so you can compare its approximate purchasing power in today's dollars.
The calculator treats the amount as a consistent monthly savings plan and applies the selected compounding assumption across the projection. It does not model an exact bank posting date, so use it for planning rather than statement reconciliation.
Use the rate and compounding terms stated by the product. APY already reflects compounding, so do not apply it as a nominal rate with another compounding assumption unless the account terms support that comparison.
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