Savings Calculator
High-Yield Savings Account Calculator
By Janet Siroto | Updated Aug 14, 2025
A savings calculator can be a very helpful financial tool as it can let you project your savings account’s performance down to the last penny. By inputting your initial balance, interest rate, and holding period, you can see how your interest rate will work on your behalf. In addition, the calculator can show you how various savings accounts will perform, allowing you to choose the best one.
Among the easiest ways to grow your wealth is to let your savings go to work for you. An online high yield savings account with high interest rates can be safe investments that can help your extra cash or an emergency fund stay ahead of inflation. Here’s what to know about using a savings calculator, a calculator to work with, and details on how to choose the best savings account.
*Actual interest credited by your financial institution may vary based on institution-specific calculation methodology.
Looking for a savings account with a competitive APY?
With a SoFi high yield savings account, get up to 3.60% APY1, no account fees2, and up to $300 with direct deposit†.
How To Use the Savings Calculator
Using a savings account calculator requires you to provide the following factors: your starting balance, years to save, additional deposits, and rate of return as expressed in APY. Here’s a step-by-step guide on how to use the calculator:
- Enter the initial deposit or starting amount you will put into your savings account. It’s the amount you have available to invest or save at the beginning.
- There’s also a space to enter how much you’ll deposit into the account over time. For example, you could contribute $50 monthly. This figure could also be zero if you don’t have the budget for it.
- Enter the number of years or months you intend to leave your money in the savings account.
- Enter the annual percentage yield, the annualized rate of return on your savings. It figures in compounding, so make sure you’re entering the APY, not just the simple interest rate.
Calculator Definitions
- Initial Deposit: The amount of money you first put into the savings account. It represents the starting point of your savings journey. The larger it is, the more you can earn from interest. In addition, some financial institutions require a specific dollar amount for your first deposit to open the account or secure a higher interest rate.
- Monthly Contribution: The amount of money you plan to add to your savings regularly, typically on a monthly basis. It represents additional contributions beyond the initial deposit that you make over time. For example, you might set up an automatic transfer of $100 per month from your checking account. Doing so will add to the principal balance, leading to more interest accumulation.
- Savings Time Period: The number of years or months you plan to leave your money in the account. It’s the duration over which your initial deposit and subsequent contributions will accrue interest. Generally, longer periods generate more earnings.
- APY (Annual Percentage Yield): APY is the annualized rate of return, taking into account the effect of compounding throughout the time the account grows. Financial institutions provide the APY for the account to show how the interest rate and compounding frequency work together to generate earnings. APY is expressed as a percentage, which you can use to calculate how much your account will grow in one year. Conventional savings accounts currently offer an average APY of 0.57%. However, high-yield savings give more favorable rates and reward your savings habits, providing an APY of over 4.00% at press time.
- Compound Frequency: Compounding refers to when your deposit earns interest. However, financial products have different compounding rates, affecting how much you earn. For example, an account that compounds twice a year earns less than one that compounds every month (provided they have the same interest rate). The greater the compounding frequency, the more often you earn interest, increasing the account’s APY. Because interest generates returns on both your deposits and past interest earnings, frequent compounding has a snowball effect, allowing your interest to build upon itself.
- Interest Earned: The total amount of interest that accumulates on your initial deposit and any additional contributions over the specified time period. You can calculate this figure with the APY, the compounding frequency, and the time elapsed. Higher interest rates create more earnings.
- Total Contributions: Total contributions represent the sum of your initial deposit and all the monthly contributions made over the specified time period. It gives you a clear picture of how much money you have contributed to the savings account.
How Is Interest on a Savings Account Calculated?
You can calculate interest on a savings account using a mathematical formula:
Simple Interest = P * r *t
• P is the principal amount (initial deposit)
• r is the annual interest rate (expressed as a decimal)
• t is the time the money is invested or borrowed for (in years)
This formula calculates interest using the initial principal amount only and doesn’t take into account any interest earned in previous periods (i.e., compounding interest) or monthly deposits. These additional factors complicate the equation. Fortunately, online savings calculators can make this easy to calculate.
That being said, here’s an example of how to calculate how much your savings account will grow with a specific interest rate:
Say you have a savings account with an initial deposit of $1,000, an interest rate of 4%, and you leave it untouched for 5 years. The simple interest would be calculated as follows:
Formula: Simple Interest = (1,000)(0.04)(5)= $200
In other words, you would have $1,000 plus $200 at the end of the term, of $1,200.
Comparing Scenarios Using the Simple Savings Calculator
A simple savings calculator can quickly provide insights on a variety of money scenarios. A few examples:
- Scenario 1: Say you want to save $2,000 for travel in a year or so. You could put in your opening deposit of, say, $1,000; punch in the best interest rate you have found; and play with how much you’d have to contribute each month to reach your goal. You might see how long it would take if you put in, say, $150 vs. $200 as your monthly contribution.
- Scenario 2: Or you might want to see how much you could accrue over five years if you were saving $200 or $300 a month vs. your current $100 contribution. The calculator will let you quickly see each of these scenarios with just a few clicks.
- Scenario 2: You can also use this tool as a simple retirement savings calculator. Simply plug in how much you have set aside so far, how many more years you plan to work, and the expected rate of return. You can then play with your monthly contributions to ensure you’ll be able to meet your retirement savings goal.
Factors to Consider When Choosing a Savings Account
Comparing savings accounts is a crucial step in finding the one that best meets your financial goals and needs. Here are the factors to consider to make a wise decision when comparing savings accounts:
- APY: Look for the APY rather than the nominal interest rate. APY more accurately reflects the interest you’ll earn because it includes the compounding effect. Higher APY means more interest earned over time. It’s also best to check if different APYs apply to higher balances. For example, some accounts only apply a high APY to your first $1,000 and give the rest of your cash a significantly lower rate. Similarly, the financial institution might offer a promotional rate for opening a new savings account that expires after a specific period.
- Fees: Check for monthly maintenance fees, transaction fees, and other charges. Look for accounts with minimal or no fees; otherwise, these expenses will eat into your interest earnings.
- Minimum balance requirements: Some accounts require a minimum balance to avoid fees or to qualify for a higher interest rate. Choose an account with a minimum balance requirement that fits your financial situation. A higher initial deposit can unlock better rates and other perks.
- Accessibility and convenience: If you regularly withdraw cash at ATMs, consider whether the bank has a widespread ATM network or reimburses ATM fees. In addition, ensure that the bank provides user-friendly online and mobile banking services, such as mobile check deposit, bill pay, and account management. Some financial institutions limit how often you can withdraw cash from the account, so check to make sure the limit (such as six times monthly) fits your needs. Lastly, the ability to set up automatic transfers from your checking to your savings account can help you save consistently.
- Insurance coverage: Ensure that your savings account is covered by the FDIC (Federal Deposit Insurance Corporation) if you’re using a bank or the NCUA (National Credit Union Administration) if you’re using a credit union. This insurance protects your deposits up to $250,000 per account holder, per account category, per insured institution, in the rare event that a bank or credit union fails.
- Shop around: Don’t settle for the first account you come across. Compare offerings from different banks or credit unions to find the one that aligns best with your financial goals. Each institution is trying to earn your business, so you have the advantage of picking the best offer you can find.
Strategies and Tips to Help You Save
Even with the best intentions, it’s common to make budgeting mistakes or just plain overspend. The end of the month arrives, and you discover you haven’t socked away as much as you’d planned. To help avoid that scenario, consider these strategies and tips to help you pump up your savings.
- Get the best rate: The interest rate on your savings account can make a big difference. Consider opening a high-yield savings account to help your money grow faster. You can often find the best rates at credit unions and online banks.
- Pay down debt: High-interest debt, like credit cards, can drain your finances. Paying down your balances not only saves you money on interest but also frees up cash that can be redirected into your savings. Moving forward, it’s wise to use credit only when necessary and always try to pay the full balance each month.
- Cut unnecessary expenses: Identify and eliminate monthly expenses you don’t need, such as unused subscriptions or memberships. Any money you free up can then be redirected into your savings account.
- Track your spending: Understanding where your money goes day in and day out can help you find other opportunities to save. Consider using a budgeting app to monitor and categorize your spending in real time. This can help you identify patterns and can help you make smarter decisions and stay on track with your financial goals.
- Disable spending on social media: If you have one-click buying enabled, that can make it too easy to snap up the latest thing you see on Instagram or TikTok without thinking, “Do I really need this or am I just caught up in the moment?” When you have to type in your credit card number and other details for each purchase, it slows the process down and gives you time to think twice.
- Gamify savings: Some people report great success with setting up “no spend” challenges for themselves. For instance, you might commit to not buying anything you don’t absolutely need for the next 30 days. Or, you might choose a smaller goal, like giving up fancy barista-made coffees or swapping yoga classes for jogging in the park. At the end of the challenge, you transfer your unspent funds into savings.
- Make the most of windfalls: Did you get a spot bonus at work, sell your old laptop, or receive a birthday check from your grandmother? Whenever a money windfall comes your way, stash it in your savings to reach your goal sooner. Or you might get a weekend gig as a rideshare driver or dog walker and funnel those extra earnings right into savings.
- Maintain your lifestyle: As our earnings grow over time, it’s tempting to let our lifestyle become more extravagant. Avoid lifestyle creep by maintaining your expenses and pocketing your next bump in salary.
FAQ
What’s the average interest on a savings account?
According to the FDIC, the national average interest rate for conventional savings accounts is 0.38% as of July 21, 2025. However, high-yield savings accounts offer APYs of 3.00% or higher; check to see if there are minimum deposit or other requirements.
Why is interest on a savings account important?
The interest rate is the primary factor driving the earnings of your savings account. The higher the rate, the more you’ll earn per compounding period. As a result, it’s best to open an account with a high interest rate so you can generate more money over time.
SoFi Checking and Savings is offered through SoFi Bank, N.A. Member FDIC. The SoFi® Bank Debit Mastercard® is issued by SoFi Bank, N.A., pursuant to license by Mastercard International Incorporated and can be used everywhere Mastercard is accepted. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.
1
Annual percentage yield (APY) is variable and subject to change at any time. Rates are current as of 11/12/25. There is no minimum balance requirement. Fees may reduce earnings. Additional rates and information can be found at http://www.sofi.com/legal/banking-rate-sheet.
Eligible Direct Deposit means a recurring deposit of regular income to an account holder’s SoFi Checking or Savings account, including payroll, pension, or government benefit payments (e.g., Social Security), made by the account holder’s employer, payroll or benefits provider or government agency (“Eligible Direct Deposit”) via the Automated Clearing House (“ACH”) Network every 31 calendar days.
Although we do our best to recognize all Eligible Direct Deposits, a small number of employers, payroll providers, benefits providers, or government agencies do not designate payments as direct deposit. To ensure you're earning the APY for account holders with Eligible Direct Deposit, we encourage you to check your APY Details page the day after your Eligible Direct Deposit posts to your SoFi account. If your APY is not showing as the APY for account holders with Eligible Direct Deposit, contact us at 855-456-7634 with the details of your Eligible Direct Deposit. As long as SoFi Bank can validate those details, you will start earning the APY for account holders with Eligible Direct Deposit from the date you contact SoFi for the next 31 calendar days. You will also be eligible for the APY for account holders with Eligible Direct Deposit on future Eligible Direct Deposits, as long as SoFi Bank can validate them.
Deposits that are not from an employer, payroll, or benefits provider or government agency, including but not limited to check deposits, peer-to-peer transfers (e.g., transfers from PayPal, Venmo, Wise, etc.), merchant transactions (e.g., transactions from PayPal, Stripe, Square, etc.), and bank ACH funds transfers and wire transfers from external accounts, or are non-recurring in nature (e.g., IRS tax refunds), do not constitute Eligible Direct Deposit activity. There is no minimum Eligible Direct Deposit amount required to qualify for the stated interest rate. SoFi Bank shall, in its sole discretion, assess each account holder's Eligible Direct Deposit activity to determine the applicability of rates and may request additional documentation for verification of eligibility.
See additional details at http://www.sofi.com/legal/banking-rate-sheet
2 No Account Fee
We do not charge any account, service or maintenance fees for SoFi Checking and Savings. We do charge a transaction fee to process each outgoing wire transfer. SoFi does not charge a fee for incoming wire transfers, however the sending bank may charge a fee. Our fee policy is subject to change at any time. See the SoFi Bank Fee Sheet for details at sofi.com/legal/banking-fees/.
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Who is eligible for a Direct Deposit Bonus?
How do I earn the Direct Deposit Bonus?
3. You will receive the bonus amount in your SoFi Checking account within 7 business days of completing all requirements listed above. You are only eligible to receive one bonus amount. You must have an open SoFi Checking account in good standing at the time of the bonus payment.
What is an Eligible Direct Deposit?
Not Eligible Deposits that are not from an employer, payroll or benefits provider or government agency and deposits that are non-recurring in nature are not eligible. Examples of deposits that are not eligible include check deposits, peer-to-peer transfers (e.g., transfers from Zelle, PayPal, Venmo, Wise, etc.), merchant transactions (e.g., transactions from PayPal, Stripe, Square, etc.), bank ACH funds transfers, wire transfers from external accounts, and IRS tax refunds. SoFi Bank shall, in its sole discretion, assess your Eligible Direct Deposit activity to determine eligibility and may require additional documentation to complete this verification.
Although we do our best to recognize all Eligible Direct Deposits, a small number of employers, payroll providers, benefits providers, or government agencies do not designate payments as direct deposit. If you have satisfied the Eligible Direct Deposit requirements but have not received a cash bonus in your Checking account, please contact us at 855-456-7634 with the details of your initial Eligible Direct Deposit. After SoFi validates the details of your Eligible Direct Deposit, your Direct Deposit Bonus will be based on the date we received your initial Eligible Direct Deposit.
What else is important to know?
New and existing SoFi members who have never set up direct deposit with SoFi are eligible for the Direct Deposit Bonus. Bonuses are limited to one bonus per SoFi member. In the case of a joint account, direct deposit activity will only be counted towards the primary account holder’s eligibility for the bonus (the primary account holder is the member who opened the joint account first).
1. Set up your first Eligible Direct Deposit. SoFi must receive it on or before 1/31/26.
2. Once SoFi receives and recognizes your first Eligible Direct Deposit, we will add up the Total Eligible Direct Deposits received over the next 25 calendar days. This total will determine the bonus amount.
Total Eligible Direct Deposit
Bonus Amount
Timing
$1.00 - $999.99
$0
To determine your bonus amount, SoFi will add up all your Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit.
$1,000.00 - $4,999.99
$50
$5,000.00 or more
$300
Eligible: Recurring ACH deposit of regular income to your SoFi Checking or Savings account, including payroll, pension, or government benefit payments (e.g., Social Security), made by your employer, payroll or benefits provider or government agency (“Eligible Direct Deposit”)
•This promotion is available between 12/7/2023 at 12:01AM ET and 1/31/2026 at 11:59PM ET. SoFi reserves the right to modify or end the promotion at any time without notice. The terms of this promotion take precedence over the terms of any prior Direct Deposit promotion.
•SoFi reserves the right to exclude any members from participating in this promotion for any reason, such as suspected fraud, misuse, or suspicious activity.
•SoFi members with Eligible Direct Deposit activity can earn 3.60% annual percentage yield (APY) on savings balances. Interest rates are variable and subject to change at any time. These rates are current as of 11/12/25. There is no minimum balance requirement. Fees may reduce earnings. Additional rates and information can be found at http://www.sofi.com/legal/banking-rate-sheet.
•Bonuses are considered miscellaneous income, and may be reportable to the IRS on Form 1099-MISC (or Form 1042-S, if applicable). SoFi is required to do this reporting in compliance with the applicable federal and state reporting requirements. Recipient is responsible for any applicable federal, state or local taxes associated with receiving the bonus offer; consult with your tax advisor to determine applicable tax consequences.
•This promotion is offered by SoFi Bank, N.A, Member FDIC (“SoFi”)
Financial Tips & Strategies: The tips provided on this website are of a general nature and do not take into account your specific objectives, financial situation, and needs. You should always consider their appropriateness given your own circumstances.
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