Savings Goal Calculator
Work backward from a number: tell the calculator your goal, your deadline, and what you have saved so far, and it solves for the monthly amount you need to set aside — accounting for the interest your balance earns along the way.
It is the inverse of a growth calculator: instead of projecting a balance forward, it finds the contribution that lands you exactly on target by your chosen date.
Save each month
$288.94
- Projected balance at goal
- $50,000
- Total you contribute
- $39,672
- Interest earned
- $10,328
Year-by-year projection
| Year | Contributed (total) | Interest (total) | Balance |
|---|---|---|---|
| 1 | $8,467 | $268 | $8,735 |
| 2 | $11,934 | $688 | $12,623 |
| 3 | $15,402 | $1,267 | $16,668 |
| 4 | $18,869 | $2,010 | $20,879 |
| 5 | $22,336 | $2,925 | $25,261 |
| 6 | $25,803 | $4,018 | $29,822 |
| 7 | $29,271 | $5,298 | $34,568 |
| 8 | $32,738 | $6,770 | $39,508 |
| 9 | $36,205 | $8,444 | $44,649 |
| 10 | $39,672 | $10,328 | $50,000 |
Calculation Formulas
P is your current balance, PMT is the monthly contribution, N is the number of months, and f is the monthly growth factor derived from the annual rate. This is the same growth model as our compound interest calculator.
The calculator grows your current balance forward, subtracts it from your goal, and divides the remaining gap by the growth factor of a monthly deposit stream — giving the exact amount to save each month.
Example:
To reach $50,000 in 10 years with $5,000 saved now at 4%: the $5,000 grows to about $7,450, leaving ~$42,550 to fund from contributions — roughly $290/month.
Key Figures
| Figure | Value | Description |
|---|---|---|
| Lower rate = safer plan | Conservative | Assuming a lower return asks you to save more, protecting the goal if returns disappoint. |
| Time reduces the monthly amount | Compounding | The longer the horizon, the more interest helps and the less you must contribute. |
Note: Results are estimates for planning purposes. Rates, fees, taxes, and insurance vary by lender and location — confirm exact figures with a licensed professional before making financial decisions.
Standards & Sources
Last verified: July 2026
- Time value of money (future value of an annuity)
Standard financial mathematics for valuing a stream of equal periodic deposits plus a present balance — inverted here to solve for the deposit.
- Consistent with our compound interest calculator
The growth model matches our compound interest tool, so a required contribution computed here, fed back into that calculator, lands on the same goal.
How to Use This Calculator
- Enter your savings goal (the target amount) and how many years you have to reach it.
- Enter your current balance and the annual interest rate you expect to earn.
- Read the monthly contribution required to hit your goal on time.
- Review the year-by-year projection to see how contributions and interest build toward the target.
Frequently Asked Questions
How is the required monthly savings amount calculated?
The calculator solves the future-value equation for the unknown monthly contribution: it grows your current balance forward at the given rate, subtracts that from your goal, and divides the remaining gap by the growth factor of a monthly deposit stream — so contributions plus interest land exactly on target by your date.
What interest rate should I assume for a savings goal?
For a short-term goal in a high-yield savings account or CD, use the current APY (often a few percent). For a longer goal invested in a diversified portfolio, a more conservative long-run assumption is common. A lower assumed rate is safer because it asks you to save more.
What if my current balance already covers the goal?
If your starting balance grows past the target on its own before the deadline, the calculator shows a $0 required monthly contribution — you are already on track and any additional saving builds a cushion.
Should I count on interest to reach my goal?
For short horizons, interest contributes little and your own contributions do almost all the work. For long horizons, compounding does a large share — which is why starting earlier lowers the monthly amount you need.
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