Calculate exactly how much you need to save each month to reach a specific financial goal by a target date.
This tool calculates how much you need to save regularly to reach a specific financial goal by a target date, based on your current savings, expected interest rate, and time horizon. It's used for planning purchases like a down payment, vacation, emergency fund, or other financial goals.
Required Regular Contribution = (Goal Amount − Current Savings × (1+r)ⁿ) ÷ [((1 + r)ⁿ − 1) ÷ r], where r is the periodic interest rate and n is the number of periods until the target date.
Enter your savings goal amount, target date, current savings (if any), and expected interest rate, and the calculator returns the regular contribution amount needed to reach your goal on time.
Example: To save $20,000 in 4 years with no current savings and a 4% annual return, you'd need to contribute approximately $385 per month.
How does starting savings affect the required monthly contribution? Any existing savings grows on its own through compound interest over the time horizon, reducing the amount that needs to come from new contributions to reach the same goal.
Should I use a conservative or optimistic interest rate assumption? For shorter-term or important goals, a more conservative rate assumption is generally safer, since overestimating returns could leave you short of your target; longer-term goals with more risk tolerance might reasonably use a somewhat higher assumed rate.
What happens if I can't afford the calculated monthly contribution? You can adjust the target date further out, lower the goal amount, or look for ways to increase the assumed return (accepting more investment risk), since these are the main variables that can be adjusted to make a goal more achievable.
Does this calculator account for taxes on investment growth? Basic savings goal calculators typically show gross growth before taxes, so actual after-tax growth may be somewhat lower depending on the account type (taxable vs. tax-advantaged) used for the savings.
Why is starting early so impactful for reaching a savings goal? Starting earlier gives contributions more time to benefit from compound growth, meaning the same goal can often be reached with smaller monthly contributions if the total savings period is longer.