Reach your target on time. This free savings goal calculator works out how much you need to save each month — and shows the weekly equivalent and interest earned — to hit any goal by your deadline.
Results update automatically as you type. Assumes level monthly saving and a constant return.
How the Savings Goal Calculator Works
Setting a savings goal only helps if you know the monthly number behind it. This calculator works backward from your target amount and deadline to find the exact monthly contribution required, accounting for any interest your savings earn along the way.
Formula: Monthly Savings = (Goal − Already Saved × (1 + i)^n) × i ÷ ((1 + i)^n − 1), where i = Expected Annual Return ÷ 12 ÷ 100 (monthly rate) and n = Years to Goal × 12 (number of months). If no return is entered, i = 0 and the formula simplifies to Monthly Savings = (Goal − Already Saved) ÷ n.
- Savings goal — the total dollar amount you want to reach by your deadline
- Already saved — money you already have set aside toward the goal
- Years to goal — how many years you have to reach the goal
- Expected annual return (optional) — the annual growth rate you expect on your savings, compounded monthly
Example Scenarios
| Savings Goal | Already Saved | Years to Goal | Annual Return | Monthly Savings Needed |
|---|---|---|---|---|
| $10,000 | $0 | 2 | 0% | $417 |
| $20,000 | $0 | 3 | 4% | $524 |
| $50,000 | $5,000 | 5 | 5% | $641 |
| $5,000 | $1,000 | 1 | 0% | $333 |
| $100,000 | $20,000 | 10 | 6% | $388 |
Staying on Track After Using the Savings Goal Calculator
A savings goal calculator gives you a monthly number. Turning that number into a habit is the harder part.
- Automate it. Set a standing transfer for the day after payday, so the money leaves before you can spend it.
- Be cautious with the interest rate. Savings rates change, so enter a modest figure in the savings goal calculator rather than today’s best promotional rate.
- Keep each goal in its own account or pot, which makes progress easy to see.
Check in every few months. If you fall behind, rerun the savings goal calculator with the balance you actually have and the time remaining; the new monthly figure shows how much catching up is needed. A later deadline can beat a big jump in contributions.
Remember inflation. A goal priced today, such as a car or a house deposit, may cost more by the deadline, so consider raising the savings goal calculator target for long-range goals. Interest may also be taxable, depending on your country. The compound interest article on Wikipedia shows how growth builds over time, the same effect the savings goal calculator uses.
Savings Goal Calculator FAQ
How does the savings goal calculator handle interest on money I’ve already saved?
It grows your “already saved” amount forward at your expected return for the full timeframe, then subtracts that grown value from your goal before working out the monthly amount needed to cover what’s left.What if I don’t know what return to expect on my savings?
Leave the “expected annual return” field blank. The calculator then assumes 0% growth and simply divides the remaining amount needed by the number of months, which is a safe, conservative estimate.Why does entering an annual return lower my required monthly savings?
When your savings earn interest, part of your goal is reached through investment growth rather than new contributions, so compounding does some of the work and less has to come out of your paycheck each month.What happens if I’ve already saved enough to reach my goal?
If your existing savings, grown at your expected return, already meet or exceed the goal, the calculator shows $0 needed per month since no further contributions are required to hit the target.Does the calculator account for taxes on interest earned?
No. It applies your entered return as a flat, pre-tax growth rate. If your savings sit in a taxable account, your real-world monthly requirement may be slightly higher than what’s shown.How is the weekly savings amount calculated?
The weekly figure is your monthly amount multiplied by 12 and divided by 52, giving a simple weekly-equivalent contribution if you prefer to save on a weekly rather than monthly schedule.Related Calculators
If interest is doing part of the work toward your goal, the compound interest calculator shows how that growth builds over time, while the retirement savings calculator applies the same logic to a longer-term nest egg. Saving toward something more specific, like a trip or the holidays? The holiday savings calculator breaks a shorter-term goal into manageable weekly or monthly amounts.