How Much Should I Save Each Month?

Set a goal, a deadline and what you already have, and see the monthly amount that gets you there with interest.

Quick answer

To find how much to save each month, subtract what your current savings will grow to from the goal, then spread the remainder over the months left, allowing for interest. To reach $30,000 in three years with $3,000 saved at 4.5%, you need to save about $691 a month, compared with $750 if you earned no interest.

$
$
%
yrs
Save each month
$690.67
Your deposits
$24,864
Interest earned
$2,136
Current savings grows to
$3,433
To reach $30,000 in 3 years, starting from $3,000 and earning 4.5% a year, set aside $690.67 per month. Your deposits total $24,864 and interest covers $2,136.

Inputs are pre-filled with the example used on this page — change any number to see your own result. Built on our savings goal calculator.

Key takeaways

  • Interest reduces the monthly amount needed; the longer the timeline, the bigger the effect.
  • Savings account rates are variable, so recheck your plan if rates change.
  • Automating a transfer on payday makes a monthly target easier to hit.
Savings goal — A specific amount you plan to accumulate by a target date, such as a home down payment, a car or an emergency fund.

How interest helps

At 4.5% compounded monthly, your $3,000 grows to about $3,433 over three years. Monthly deposits of $690.67 add $24,864, and interest on those deposits contributes about $2,136. With no interest you would need $750 a month — about $59 more.

Common goals

People use this calculation for a home down payment, a wedding, a car bought with cash, or an emergency fund. For an emergency fund specifically, the emergency fund calculator sets the target from your monthly expenses.

If the monthly amount is too high

Extend the deadline, lower the goal, or find a higher-yield account. Even a few extra months make a noticeable difference. Money for goals only a few years away usually belongs in insured savings rather than investments that can fall in value just when you need it.

Worked example

Monthly rate = 4.5% ÷ 12 = 0.375%. $3,000 grows to $3,000 × 1.00375^36 ≈ $3,433. The remaining $26,567 must come from deposits: $26,567 × 0.00375 ÷ (1.00375^36 − 1) ≈ $690.67 a month.

Methodology and sources

Current savings compound monthly at the rate you enter. The required monthly deposit is the payment that, compounding monthly over the remaining months, grows to the gap between the goal and your grown savings. Deposits are assumed at the end of each month. Taxes on interest are ignored.

Sources: Investor.gov (U.S. SEC) – Compound interest calculator · Investor.gov – Compound interest (glossary)

Frequently asked questions

How much should I save each month to have $30,000 in 3 years?

About $691 a month at 4.5% interest if you already have $3,000, or $750 a month with no interest.

Should I save or invest for a short-term goal?

For goals within a few years, savings accounts are usually safer because investments can lose value at the wrong time.

Which interest rate should I enter?

Enter your account's quoted rate. The calculator compounds monthly, which is close to the APY for typical savings accounts.

What if I miss a month?

Re-run the calculator with your new balance and remaining time to get an updated monthly target.

Results are estimates for educational purposes and are not financial advice.

Written and reviewed by Muhammad Asif, founder of CalcPane · Formulas verified by automated tests · Updated