Recurring Deposits (RD) Calculator – Calculate Maturity Amount & Interest Free Online
Recurring Deposits Calculator
Spluxly’s free online Recurring Deposits (RD) Calculator is a straightforward savings planning tool designed for individuals, financial planners, and anyone looking to grow their money steadily through monthly deposits. A recurring deposit is a savings scheme in which you deposit a fixed amount every month and earn compound interest over a defined tenure, receiving a lump-sum maturity amount at the end of the term. This calculator uses the standard quarterly compounding formula applied to each monthly instalment — the method commonly used by banks and financial institutions for RD accounts — to give you an accurate picture of how your savings will grow. Simply enter your monthly deposit amount, the annual interest rate, and the tenure in years, then click Calculate Maturity to instantly receive your total amount invested, total interest earned, and final maturity amount. Completely free, no registration required, and accessible on any device.
How to Use the Recurring Deposits Calculator Online
Calculating your RD maturity amount takes just a few seconds. Follow these simple steps:
- Enter Monthly Deposit – Input the fixed amount you plan to deposit each month in dollars (e.g., $500)
- Enter Annual Interest Rate – Input the annual interest rate offered on your RD account as a percentage (e.g., 6%)
- Enter Tenure – Input the duration of the recurring deposit in years (e.g., 5 years)
- Click Calculate Maturity – The calculator applies the quarterly compounding formula to each monthly instalment across the full tenure and instantly returns your results
- Review Your Results – See your Total Amount Invested, Total Interest Earned, and Final Maturity Amount displayed clearly (e.g., Total Invested: $30,000.00 | Interest Earned: $4,871.10 | Maturity Amount: $34,871.10)
How the RD Maturity Amount Is Calculated
The Recurring Deposits Calculator uses the standard compound interest formula applied individually to each monthly instalment, with quarterly compounding — the convention used by most banks for RD accounts.
Formula for Each Monthly Instalment:
A = P × (1 + r/n)^(n × t)
Where:
- A = Maturity value of that instalment
- P = Monthly deposit amount
- r = Annual interest rate (as a decimal)
- n = Number of compounding periods per year (4 for quarterly)
- t = Time remaining in years from that instalment to the end of the tenure
Total Maturity Amount: The maturity values of all individual monthly instalments are summed to give the total maturity amount.
Interest Earned: Interest Earned = Total Maturity Amount − (Monthly Deposit × Total Number of Months)
Example: Monthly Deposit = $500 | Annual Rate = 6% | Tenure = 5 years
- Total Months = 60
- Total Invested = $500 × 60 = $30,000.00
- Each instalment compounds at 6% quarterly for its remaining time in the deposit
- Total Maturity Amount ≈ $34,871.10
- Interest Earned = $34,871.10 − $30,000.00 = $4,871.10
Why Quarterly Compounding: Most banks compound RD interest quarterly rather than monthly or annually. Using quarterly compounding (n=4) ensures the calculator’s results align with the actual maturity amounts you would receive from a typical bank RD account.
Why Use Spluxly’s Recurring Deposits Calculator?
- Quarterly Compounding Formula – Uses the standard RD compound interest formula with quarterly compounding (n=4), matching the method used by most banks and financial institutions, so results closely reflect the actual maturity amounts you would receive
- Three Clear Output Values – Returns Total Amount Invested, Total Interest Earned, and Final Maturity Amount in a single calculation, giving you a complete picture of your RD’s performance at a glance
- Simple Three-Input Design – Only three inputs are required — monthly deposit, annual interest rate, and tenure — making the calculator fast and accessible for users at any level of financial literacy
- Ideal for Savings Planning – Whether you are setting up a new RD, comparing different deposit amounts or tenures, or evaluating interest rate offers from different banks, this tool delivers instant results for any combination of inputs
- Supports Any Deposit Amount or Tenure – Works for small monthly deposits and short tenures as well as larger long-term savings plans, with no restrictions on the values you can enter
- 100% Free & Instant – No registration, no fees, and no app download required — enter your deposit details and receive your full RD maturity calculation with interest breakdown in seconds on any device