HYSA Interest Calculator

HIGH-YIELD SAVINGS PLANNER

See what your cash could earn.

Project your savings balance, separate deposits from interest, and see how different APYs can affect your results.

Your savings plan

Optional comparison using the same balance, deposits and timeline.

APYs are variable. This projection assumes each entered APY stays constant for the entire period.

ESTIMATED ENDING BALANCE—

Total deposited—
Interest earned—
First-month interest—
Interest share of ending balance—
APY COMPARISON—

View year-by-year growth +
YearBalanceTotal depositedInterest earned

Interest is modeled using the monthly rate equivalent to the entered APY, with monthly deposits added after that month’s interest.

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How to Use the HYSA Interest Calculator

Enter your starting balance, the account APY, monthly deposits and savings horizon. The calculator estimates your ending balance, total deposits and interest earned. Use the comparison APY to see how a different rate could affect the same savings plan.

Why APY Matters

APY includes the effect of compounding over a year, making it useful for comparing savings accounts. Rates are typically variable, so actual interest earned can be higher or lower than this illustration.

Good Uses for an HYSA

  • Emergency funds.
  • Near-term purchases and planned expenses.
  • Cash you want accessible without stock-market volatility.
  • Short-term savings while comparing options such as CDs.

Related: Read HYSA 101, the Emergency Fund Guide, and the CD Ladder Guide.


For educational purposes only. Verify current APY, fees, deposit-insurance eligibility and account terms directly with the financial institution.

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