CalcLibrary

Savings Goal Calculator

Figure out exactly how much you need to save each month to reach your financial goal on time. Factor in your current savings and expected returns to get a realistic monthly target.

Examples

Emergency Fund — $20,000 in 2 Years

Build a $20,000 emergency fund from $2,000 in savings over 24 months at 4% return.

Goal Amount
$20,000
Current Savings
$2,000
Time to Reach Goal
24 months
Expected Annual Return
4 %
Monthly Savings Needed
$714.98
Status
On track
Projected Value at Target Date
$20,000.00
Total Contributions
$19,159.57
Interest Earned
$840.43

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How It Works

Formula

PMT=Goal−PV×(1+r12)n(1+r12)n−1r/12\text{PMT} = \frac{\text{Goal} - \text{PV} \times \left(1 + \frac{r}{12}\right)^{n}}{\dfrac{\left(1 + \frac{r}{12}\right)^{n} - 1}{r / 12}}

Variables, symbols and units

PMT\text{PMT}

Required monthly contribution

Goal\text{Goal}

Target savings amount

PV\text{PV}

Current savings already set aside for the goal

rr

Expected annual return rate (decimal)

nn

Number of months until the target date
Calculation method explained

Enter your target amount, current savings, number of months, and expected annual return. The calculator grows your current savings forward using compound interest, then reverse-engineers the monthly contribution needed to bridge the remaining gap using the future value of an annuity formula.

References and source material

Examples

Emergency Fund — $20,000 in 2 Years$20,000 · $2,000 → $714.98

Build a $20,000 emergency fund from $2,000 in savings over 24 months at 4% return.

Goal Amount
$20,000
Current Savings
$2,000
Time to Reach Goal
24 months
Expected Annual Return
4 %
Monthly Savings Needed
$714.98
Down Payment — $50,000 in 5 Years$50,000 · $10,000 → $546.52

Save $50,000 for a house down payment starting from $10,000 over 60 months at 5%.

Goal Amount
$50,000
Current Savings
$10,000
Time to Reach Goal
60 months
Expected Annual Return
5 %
Monthly Savings Needed
$546.52
Vacation — $5,000 in 1 Year$5,000 · $0 → $416.67

Save $5,000 for a vacation from scratch in 12 months with no investment return.

Goal Amount
$5,000
Current Savings
$0
Time to Reach Goal
12 months
Expected Annual Return
0 %
Monthly Savings Needed
$416.67

Frequently Asked Questions

How is the monthly savings amount calculated?
The calculator first projects what your current savings will grow to by the target date (using compound interest). Then it calculates the remaining gap and uses the annuity formula in reverse to determine the monthly contribution needed to fill that gap.
What if my current savings already exceed the goal after interest?
If your existing savings will grow past the goal through returns alone, the calculator marks the status as "Already funded" and shows $0 monthly savings needed. The projected value and interest earned over the period are still displayed so you can see how far past the goal your savings are on track to land.
Should I assume a return rate for my savings?
It depends on where the money is kept and how conservative you want the plan to be. Use the annual return assumption that fits this goal, and compare a lower and higher scenario if you are unsure.
How does the time horizon affect the amount I need to save?
A longer time horizon usually lowers the monthly contribution because you have more time to save and compound.
Can I use this for any financial goal?
Yes — emergency funds, house down payments, vacation savings, car purchases, education funds, wedding budgets, or any specific amount you want to reach by a certain date. The math is the same regardless of the goal.

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