EconoPi

Savings Calculator

Project savings interest, recurring deposits and progress toward a goal

Results update as you type. Inputs are saved on this device.

Display unit only · no FX conversion

Savings balance in 5 years

$33,028
Total deposits$29,000
Interest earned$4,028
Goal progress82.6%

Savings growth

BalanceDeposits
$33,028$24,771$16,514$8,257$0
Savings growth
0y1y3y4y5y

Savings goal

$40,000
Projected surplus / gap-$6,972At the selected horizon
Monthly deposit$400Added after monthly interest

Savings interest and goal calculator

Estimate how a savings account grows from an opening balance, recurring deposits and APY. Compare deposits with interest earned and see when the balance may reach a selected goal.

How to use this calculator

  1. Enter the current account balance and the deposit expected at the end of each month.
  2. Use the account's advertised APY and choose a horizon or savings goal.
  3. Compare the estimated goal date with a lower APY because variable savings rates can change.

How to read the result

Deposits show the cash you supplied; interest earned is the balance above those deposits. Goal progress compares the modeled balance at the selected horizon with the target amount.

What this estimate does not capture

APY can change, and account fees, taxes, withdrawal limits and promotional-rate expiration are excluded. Confirm current terms with the institution.

Methodology, assumptions & limits

Inputs are applied directly to standard finance formulas with monthly compounding where relevant. Results are estimates in the selected currency; they do not include every tax, fee, benefit, market event or local rule. Try a conservative and an optimistic case before making a decision.

Last reviewed: August 2026. Primary references include the IRS 2026, SSA, BLS CPI, U.S. DOL, CFPB.

Frequently asked questions

What is APY?

Annual percentage yield includes compounding and expresses the effective return earned over one year when the rate remains unchanged.

How are monthly deposits treated?

Interest is applied to the current balance and the recurring deposit is added at the end of each modeled month.

Can a savings APY change?

Yes. Most savings-account rates are variable, so the selected APY is a scenario rather than a guaranteed multi-year rate.

Does this include tax on interest?

No. Displayed interest is before any income tax, account fee or withdrawal penalty.

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All math runs in your browser and your inputs are never sent to a server. Settings are saved locally and share links encode the state in the URL. For information only — not investment or tax advice.