How much should I save?
The amount depends on your remaining goal, current savings, time available, and interest earned. Enter those assumptions and a saving frequency to solve for the regular end-of-period contribution.
Savings Goal Calculator
Use this savings goal calculator to find how much you need to save each month, every two weeks, or week to reach a target — or enter what you can already save and estimate how long it may take.
Enter your current savings, goal, and timeframe or regular contribution. An effective annual interest rate, such as an applicable APY, lets the estimate show interest earned separately from your deposits.
Region
Choose the currency used to display your plan. Switching regions clears the entered values; it does not convert money.
What do you want to calculate?
Choose whether to solve for the saving amount or the time needed to reach your goal.
Calculate the regular contribution needed to reach your savings goal within a chosen timeframe.
Savings goal
Enter the target, what you have already saved, and the annual growth assumption.
Saving frequency
Choose how often the regular contribution is added. Contributions are modeled at the end of each period.
Time to goal
Set how long you want to give the savings plan.
This calculator uses 12 monthly, 26 biweekly, or 52 weekly periods per year. The rate you enter is treated as an effective annual rate and converted to an equivalent periodic rate.
Planning estimate: This calculator is for planning and informational purposes only. Actual savings results may differ because rates, account terms, fees, taxes, deposits, withdrawals, and other conditions can change. It is not financial, tax, or investment advice.
🧭 How to use the savings goal calculator
When will I reach my savings goal?
The timeline depends on current savings, your regular contribution, saving frequency, and assumed interest rate. The calculator returns the earliest whole contribution period when the projected balance reaches the target.
🎯 Quick answers for common savings goals
How much to save to reach $5,000 in 6 months?
Starting from $0 at 0% interest: $833.33 per month, $384.62 every 2 weeks, or $192.31 per week. Six months means 6 monthly, 13 biweekly, or 26 weekly contributions in this model.
How much to save to reach $10,000 in one year?
Starting from $0 at 0% interest: $833.33 per month, $384.62 every 2 weeks, or $192.31 per week.
How long will it take to save $10,000?
Starting from $0, saving $500 monthly at 0% interest takes 20 months — approximately 1 year and 8 months.
These simple examples use 0% interest so the arithmetic is easy to verify. Enter your own current savings and effective annual rate for a personalized estimate; the examples are not saving recommendations.
🧮 How the savings goal formula works
The model combines your current savings with equal regular contributions and compound growth. Contributions are assumed to occur at the end of each selected saving period.
Future balance
FV = P(1 + i)ⁿ + C × ((1 + i)ⁿ − 1) / i
P is current savings, C is the regular contribution, i is the periodic rate, and n is the number of contribution periods.
Periodic interest rate
i = (1 + r)^(1/m) − 1
r is the effective annual rate and m is 12, 26, or 52 periods per year.
0% interest
FV = P + Cn
With no interest, the plan grows only from the starting balance and new contributions.
Time-to-goal mode
Find the earliest whole n where FV ≥ goal
The calculator searches whole contribution periods rather than displaying a fractional deposit count.
In How much should I save? mode, the future-value equation is solved for C. In When will I reach my goal? mode, the calculator finds the earliest whole contribution period that reaches the target.
🧾 Savings goal examples
These worked estimates show both directions: how much to contribute within a chosen timeframe and how long a regular contribution may take to reach a goal.
How much should I save each month?
- Savings goal
- $20,000
- Already saved
- $5,000
- Time
- 3 years
- Effective annual rate
- 4%
- Frequency
- Monthly
- Required monthly saving
- $376.91
- Total new contributions
- $13,568.69
- Estimated interest
- $1,431.31
- Projected final balance
- $20,000.00
Example only. Actual rates, deposits, fees, taxes, and withdrawals can change the outcome.
How long will it take?
- Savings goal
- $10,000
- Already saved
- $1,000
- Monthly saving
- $300
- Effective annual rate
- 4%
- First goal-reaching period
- 29 monthly contributions
- Approximate time
- 2 years 5 months
- Projected balance
- $10,210.16
- Estimated interest
- $510.16
The calculator uses whole contribution periods, so the projected balance can finish slightly above the target.
💹 What interest rate should I use?
Use the effective annual rate or APY that most closely matches the savings account or vehicle being modeled. The calculator converts that rate to an equivalent monthly, biweekly, or weekly rate.
A higher assumed rate lowers the contribution needed in the model or shortens the projected timeline, but the calculator does not predict future account rates or investment returns. Enter 0% when you want to see a contribution-only plan.
🔁 Monthly vs. biweekly vs. weekly savings
Monthly
12 periods / year
Use the monthly savings calculator option for a monthly budget or scheduled transfer.
Every 2 weeks
26 periods / year
If you are paid every two weeks, this biweekly savings goal option gives an approximate amount to set aside from each paycheck.
Weekly
52 periods / year
A weekly savings goal spreads the annual saving pace across smaller, more frequent deposits.
Changing frequency changes contribution timing as well as the equivalent periodic interest rate. Equivalent pace figures in the result card are annualized planning comparisons, not a substitute for recalculating with a different frequency.
🎯 Common reasons to set a savings goal
Emergency fund
Plan contributions toward a cash reserve for unexpected costs.
House down payment
Estimate a saving pace toward a planned home purchase.
Vacation
Set a target amount before a planned trip.
Car
Work toward an amount for a vehicle purchase.
Wedding or planned purchase
Estimate the deposits needed before a chosen date.
📌 Planning assumptions and limits
The calculator assumes a constant effective annual interest rate, interest that remains in the balance, and regular contributions made at the end of each selected period.
No inflation adjustment
No income-tax calculation
No account or transaction fees
No changing interest-rate or return path
No missed deposits
No withdrawals
No minimum-balance rules
No bank-specific crediting rules
Planning estimate: this calculator is for informational and planning purposes only. Actual savings results can differ as rates, account terms, fees, taxes, deposits, withdrawals, and other conditions change. It is not financial, tax, or investment advice.
The time-to-goal search stops at a 100-year planning horizon. If the saving pace does not reach the goal within that period, the calculator shows the projected balance at the horizon instead of a later goal date.
📚 Methodology reference points
Investor.gov — Savings Goal Calculator
A U.S. investor-education reference for planning how much to contribute toward a specific savings goal using a target, initial amount, timeframe, and estimated annual rate.
View source →MoneySmart — Savings goals calculator
A government financial-education reference that highlights time-to-goal planning and makes model assumptions such as regular saving, reinvested interest, constant rates, and exclusions for inflation, tax, and fees explicit.
View source →FigureNorth uses its own stated effective-annual-rate model and end-of-period contribution convention; reference calculators may use different compounding or deposit-timing assumptions.
❓ Savings Goal Calculator FAQ
What is a savings goal calculator?
A savings goal calculator turns a target amount into a regular saving plan. This calculator can either solve for the contribution needed to reach a goal within a chosen timeframe or estimate how many whole saving periods your current contribution may take.
How much should I save each month to reach my goal?
Choose How much should I save?, enter the amount you want to reach, what you already have saved, your timeframe, and an estimated effective annual interest rate. With Monthly selected, the result is the estimated amount to add at the end of each month.
How long will it take to reach my savings goal?
Choose When will I reach my goal?, enter your regular contribution and saving frequency, and the calculator finds the earliest whole contribution period whose projected balance reaches or exceeds the target. Results are estimates because real rates and saving behavior can change.
Does this calculator include compound interest?
Yes. When the annual rate is above 0%, interest remains in the projected balance and earns additional interest over time. The annual rate is converted to an equivalent rate for the selected monthly, biweekly, or weekly saving period.
What annual interest rate should I enter?
Use an estimated effective annual rate that fits the account or savings vehicle you are modeling. If your account provides an APY or another effective annual yield, that is the closest fit for this calculator. You can enter 0% to model savings with no interest.
What is the difference between monthly, biweekly, and weekly saving?
The frequency changes how often contributions are added and how the effective annual rate is converted to a periodic rate. This calculator uses 12 monthly periods, 26 biweekly periods, or 52 weekly periods per year, with contributions assumed at the end of each period.
Why are there 26 biweekly saving periods in a year?
A biweekly plan means one saving period every two weeks. Using the calculator's standard planning convention of 52 weeks per year gives 26 two-week periods. This is a planning model rather than a bank transaction calendar.
What happens if my current savings can reach the goal without more deposits?
The required-contribution result becomes 0 if your existing savings, growing at the rate entered, are projected to reach or exceed the goal by the selected timeframe. The calculator still shows the projected final balance and estimated interest.
Does the calculator account for inflation, taxes, fees, or changing interest rates?
No. It assumes a constant effective annual rate, regular contributions, and interest that remains in the balance. It does not model inflation, taxes, account fees, changing rates or returns, missed deposits, withdrawals, minimum balances, or account-specific crediting rules.
Can I use this calculator to save $5,000 or $10,000 by a deadline?
Yes. Enter $5,000, $10,000, or another target, then add your current savings, timeframe, saving frequency, and estimated annual rate. The calculator estimates the regular contribution needed. Or enter what you can save regularly to estimate how long reaching the target may take.