How to Calculate Monthly Savings Needed to Reach a Goal

Whether you are saving for a house deposit, a car, an emergency fund, or a holiday, knowing exactly how much to set aside each month makes the goal feel achievable. This calculation uses the future value of an annuity formula to determine the regular payment needed to reach a specific amount by a specific date, accounting for interest earned along the way.

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Formula

$$PMT = \frac{FV \times r}{(1+r)^n - 1}$$

Savings Goal Calculator

Find how much to save monthly to reach your savings goal on time.

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Worked Example

Given:

Savings Goal = $20,000Current Savings = $2,000Time to Reach Goal = 24 monthsAnnual Interest Rate = 4%

ResultMonthly Savings Needed: $737.28 — Total Contributions: $17,694.72 — Interest Earned: $305.28

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FAQs

What interest rate should I use for a savings account?

Use the actual annual interest rate (APY) from your savings account or investment vehicle. High-yield savings accounts typically offer 4–5% APY. A standard bank savings account may offer only 0.5–1%. Use 0% if your savings earn no interest.

What if I already have some savings towards the goal?

Enter your current savings in the Current Savings field. The calculator subtracts this from your goal and calculates the monthly contribution needed for only the remaining amount, accounting for interest on both existing savings and new contributions.

What happens if I miss a monthly contribution?

Missing contributions extends the time needed to reach your goal or requires larger future contributions to compensate. Automating transfers to a dedicated savings account on payday is the most reliable way to stay on track.