Savings Goal Calculator

Pick a goal, a deadline and your account's APY — get the exact monthly deposit that lands you there.

Save this much per month$0.00
Total you'll deposit
Growth of current savings
Interest earned along the way
Per week (if easier)

The math behind the monthly number

With interest, each deposit grows until the deadline, so the required monthly amount is a future-value annuity solve — not just goal ÷ months:

r = APY ÷ 12 (monthly rate) Monthly deposit = (goal − current × (1+r)ⁿ) × r ÷ ((1+r)ⁿ − 1)

Worked example

Goal $15,000 in 24 months, starting with $2,000 at 4% APY: your $2,000 grows to about $2,166 on its own, and the remaining gap needs about $514/month — the account’s interest quietly contributes several hundred dollars of the goal.

Making the number happen

  • Automate on payday. A standing transfer the morning your paycheck lands beats 24 months of remembering. Biweekly earners: split the monthly figure across checks (the per-week line above helps).
  • Park it in a high-yield savings account. Online HYSAs have recently paid around ~4% APY versus ~0.4% at typical brick-and-mortar banks — on this example that difference alone is worth hundreds of dollars.
  • Match the vehicle to the deadline: under ~3 years, stay in cash-like accounts (HYSA, money market, CDs, T-bills). Market investments are for goals long enough to ride out a bad year — a 2-year house down payment doesn’t qualify.
  • Separate accounts per goal (or use bank “buckets”) — visible progress is the strongest known motivator for actually finishing.

Common goals to plug in

Emergency fund (see the dedicated calculator), house down payment, car replacement fund (beats a car loan in reverse), wedding, vacation-without-a-credit-card-hangover, insurance deductibles, next year’s property taxes for escrow-less owners, and holiday spending funds.

Frequently asked questions

How much do I need to save per month for $10,000 in a year?

About $817/month at 4% APY (the interest covers roughly $200 of the goal) — or $833 in a no-interest account. Halve the pace to 24 months and it drops to about $400/month.

Should I count the APY at all — rates change, right?

HYSA rates float with the Fed, so treat the interest as a tailwind, not a plan. For short goals the difference is modest; entering a conservative APY (or 0) simply means you finish slightly early if rates hold.

Is it better to save monthly or dump lump sums when I can?

Whatever you’ll actually sustain — but automated monthly transfers have the best completion record because they remove the decision. Lump-sum extras (tax refunds, bonuses) then shorten the timeline; recompute here whenever one lands.

Where should short-term savings NOT go?

Stocks and stock funds (a 20% dip the month before your deadline is a real risk), long CDs with withdrawal penalties beyond your date, and crypto. Deadline money wants boring: HYSA, money market funds, T-bills laddered to the date.

Last reviewed: 2026-08-20 · Report an issue