To reach a savings goal by a date, subtract what you have already saved from the goal and divide the rest by the number of deposits you can make before then. This calculator does that for weekly, every-two-weeks or monthly saving, and splits the amount to the cent so the deposits add up exactly.
A worked example
Lena is hypothetical and all amounts are US dollars. Assume twelve full monthly periods or 52 full weekly periods remain before the target date; these deposit counts depend on the dates selected.
Lena wants 2,400 for a trip in 12 months and has 300 saved, so 2,100 is still needed. Saving monthly means 12 deposits of 175. Saving weekly means 52 deposits: 24 of 40.39 and 28 of 40.38, which add up to exactly 2,100. Matching deposits to payday often makes the plan easier to keep.
Choosing a goal and a date
Write down what the money is for, the amount and the date you need it. A specific goal is easier to protect than a general wish to save more. The CFPB savings plan tool uses the same approach: name the expense, its amount and when it is due, then work out what to put aside each time. If the result is more than your budget allows, move the date later or lower the goal rather than skipping essentials.
How the calculation works
The number of deposits counts full weeks, full two-week periods or full months from today until your target date. The amount still needed is divided evenly; any leftover cents go one each to the earliest deposits. The plan assumes your balance grows only by what you add, so the result is not affected by account type.
No deposit today is included. Weekly periods are seven days and two-week periods are fourteen days. For monthly counting, the target must reach today’s day number in the next month to count a full period. For example, January 31 to February 28 counts as zero full monthly periods and produces an error, not a monthly deposit plan. This convention is not a payday calendar; compare it with the deposits you can actually make before your deadline.
The plan assumes every deposit is made and none of the saved money is withdrawn. It does not model fees or changing costs. Enter goal and savings in the same currency; Display currency changes labels, not exchange rates. This is educational planning, not a guarantee of reaching the goal or personalized advice.
When this plan does not fit
If your income varies, plan deposits from a cautious month and add extra when a good month comes. If you do not have an emergency fund yet, consider building a small one first with the emergency fund calculator, so an unexpected bill does not end up on the goal. For several upcoming costs at once, the sinking funds calculator totals them in one monthly amount.