Try the Savings Calculator to do this in your browser.
What a Recurring Deposit Calculator Does
A recurring deposit calculator shows exactly how much your savings will grow when you make regular deposits over time. Instead of guessing how much interest you’ll earn or how much you’ll have in the future, this tool gives you a clear, instant projection based on your starting balance, deposit amount, frequency, interest rate, and time horizon. For example, if you start with $1,000 and deposit $200 every month at a 3% annual interest rate for 5 years, the calculator will tell you the future value of your savings, how much of that is your own contributions, and how much is interest earned.
This is different from a compound interest calculator, which only grows a single lump sum. A recurring deposit calculator models the real-world behavior of savings accounts, emergency funds, or automatic transfers, where you add money regularly—every month, quarter, or year. Each new deposit starts earning interest from the moment it lands, so the tool reflects disciplined, ongoing saving rather than a one-time investment. The results update in real time as you adjust any input, making it easy to compare scenarios like saving $100 a month versus $200 or testing how a higher interest rate changes the outcome.
Because the calculator runs entirely in your browser, no numbers are uploaded, and no account is required. It’s built for everyday savers who want to plan for goals like a vacation fund, a down payment, or even retirement. While the estimates are for general information and not financial advice, they give you a practical way to sanity-check your savings plan before committing to it.
How Regular Deposits Grow Over Time
When you make regular deposits into a savings account, each contribution earns interest from the moment it’s added. Over time, this creates a compounding effect where your money grows faster than it would with a single lump sum. For example, if you deposit $100 every month at a 4% annual interest rate, the first deposit earns interest for the full term, while later deposits earn interest for shorter periods. The recurring deposit calculator accounts for this by treating each deposit as part of an ordinary annuity, where contributions are added at the end of each compounding period.
The tool uses two standard formulas to calculate the future value. Your starting balance grows by compound interest: initial × (1 + i)^N, where i is the periodic interest rate and N is the total number of periods. Your recurring deposits grow as the future value of an ordinary annuity: contribution × ((1 + i)^N - 1) / i. The calculator adds these two results to give you the total future value. It also breaks down the total into your contributions and the interest earned, so you can see how much of your savings comes from your own deposits versus growth.
For instance, if you start with $500, deposit $150 monthly at a 3% annual rate for 10 years, the calculator might show a future value of about $21,636, with $18,500 from your contributions and about $3,136 from interest. This breakdown helps you understand the impact of your savings habits and how much of your balance is actually growth. The calculator also lets you adjust the deposit frequency—monthly, quarterly, or annually—to see how compounding more often can slightly increase your future value.
Calculate Your Savings in Three Simple Steps
- Enter your starting balance and deposit amount. Type the amount you already have saved (if any) and how much you plan to deposit each period. For example, if you have $1,000 saved and plan to add $200 every month, enter those values.
- Choose your deposit frequency and enter the interest rate and time horizon. Select how often you’ll deposit—monthly, quarterly, or annually—then enter the annual interest rate (e.g., 3%) and the number of years you’ll save (e.g., 5 years).
- Read your results instantly. The calculator updates in real time, showing the future value of your savings, your total contributions, and the interest earned. Adjust any input to see how changes affect your results.
For example, if you start with $0, deposit $300 monthly at a 2.5% annual rate for 7 years, the calculator might show a future value of about $27,508, with $25,200 from your contributions and about $2,308 from interest. This instant feedback helps you compare different savings strategies, like saving for a shorter or longer period or adjusting your deposit amount.
Why Deposit Frequency Matters
The frequency of your deposits affects how much interest you earn over time. When you deposit more often—such as monthly instead of annually—interest is calculated and added to your balance more frequently. This means each new deposit starts earning interest sooner, which can slightly increase your future value. For example, if you deposit $1,200 annually at a 4% interest rate, you’ll earn less interest than if you deposit $100 monthly at the same rate, because the monthly deposits compound more often.
The table below shows how deposit frequency can change the future value of your savings over 5 years with a $100 monthly deposit (or equivalent) at a 3% annual interest rate:
| Deposit Frequency | Future Value | Total Contributions | Interest Earned |
|---|---|---|---|
| Monthly | $6,464.67 | $6,000 | $464.67 |
| Quarterly | $6,447.37 | $6,000 | $447.37 |
| Annually | $6,370.96 | $6,000 | $370.96 |
The difference may seem small, but over longer periods or with larger deposits, it can add up. The recurring deposit calculator lets you test these scenarios instantly, so you can choose the frequency that works best for your savings plan.
Compare Savings Scenarios Side by Side
One of the biggest advantages of a recurring deposit calculator is the ability to compare different savings scenarios quickly. For example, you might wonder whether saving $200 a month for 10 years is better than saving $400 a month for 5 years, or how a higher interest rate affects your future balance. The calculator lets you adjust any input—deposit amount, frequency, rate, or time horizon—and see the results instantly.
For instance, if you’re deciding between two savings plans, you can enter the details for each and compare the future values. Plan A might involve saving $150 monthly at a 2% rate for 8 years, while Plan B involves saving $250 monthly at a 3% rate for 5 years. The calculator will show you the future value, total contributions, and interest earned for both, helping you decide which plan aligns better with your goals.
You can also use the tool to test the impact of small changes, like saving for an extra year or increasing your deposit by $50 a month. These adjustments might seem minor, but over time, they can significantly boost your savings. The calculator’s real-time updates make it easy to explore these scenarios without any guesswork.
When to Use a Recurring Deposit Calculator
A recurring deposit calculator is useful for anyone who wants to plan their savings with regular contributions. Whether you’re saving for a short-term goal like a vacation or a long-term goal like a down payment, the tool helps you project how much you’ll have in the future and how much of that comes from interest. It’s especially helpful for:
- Emergency funds: See how much you’ll have if you save a fixed amount each month for 6 months or a year.
- Automatic savings plans: Test how much your balance will grow if you set up automatic transfers to your savings account.
- Comparing accounts: Check how different interest rates or deposit frequencies affect your savings over time.
- Setting realistic goals: Adjust your deposit amount or time horizon to see what it takes to reach a specific savings target.
Because the calculator runs in your browser and doesn’t require an account, you can use it as often as you like to refine your savings plan. While the estimates are for general information only and not financial advice, they give you a practical way to plan ahead and make informed decisions about your savings.
If you’re curious about how the math behind the calculator works, you can learn more in our guide on how a savings calculator works: formulas and inputs. For those who prefer spreadsheets, our step-by-step guide to calculating savings in Excel walks you through building your own savings model.