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.
| Year | Deposits to date | Interest to date | Balance |
|---|
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:
Balancenext = Balance × (1 + monthly rate) + Deposit
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.