Savings Calculator

Project your savings account balance from a starting amount, monthly deposits, and your APY — with the interest broken out so you can see your money working.

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Please enter a valid balance or deposit, rate, and time.

Projected balance
Total deposits
Interest earned
Monthly interest at end
YearDeposits to dateInterest to dateBalance

How the projection works

Each month, your balance earns one month of interest at your APY's equivalent monthly rate, then your deposit is added:

Monthly rate = (1 + APY)1/12 − 1
Balancenext = Balance × (1 + monthly rate) + Deposit
Worked example

Start $1,000, deposit $300/mo at 4.5% APY for 5 years:

Deposits: $19,000 · Interest: ≈ $2,290 · Final balance: ≈ $21,290

Making your savings work harder

Three practical upgrades, in order of impact. Rate: the national-average savings account pays under 0.5% APY while high-yield accounts pay several points more — on the example above, that difference alone is worth about $2,000 over 5 years. Automation: a transfer on payday makes the deposit happen before spending can claim it. Purpose: give the account a job — an emergency fund target or a specific savings goal — because named money is spent less. For funds you won't touch for years, compare a CD ladder or, on long horizons, investing.

Frequently asked questions

How much will my savings grow in 5 years?

$1,000 + $300/mo at 4.5% APY ≈ $21,300 after 5 years ($19,000 deposits, ~$2,300 interest).

What is APY and how is it different from the interest rate?

APY includes compounding — it's the true annual yield and the number to compare between banks.

Where should I keep my savings?

Near-term money: high-yield savings or money market (FDIC-insured, liquid); CDs for a bit more yield; invest longer-horizon money.

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Note: Assumes a constant APY; bank rates change with the market. Not financial advice. Last reviewed: July 2026.