RD Calculator

Invested Amount
₹ 60,000

Est. returns
 ₹ 1,986

Total value
 ₹ 61,986

Monthly investment

₹ 500
₹ 1.5 Lakh

Rate of interest (p.a)

1 %
15 %

Time period (in years)

1 Years
10 Years

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RD Calculator

Recurring Deposit or RD is one of the most popular investment options in India that guarantees fixed returns. An RD account can be opened with any bank or post office by depositing a fixed amount regularly for a pre-defined tenure. The interest accumulates on the deposits to ultimately provide a lump sum maturity amount at the end of the tenure.

An RD calculator is an online tool which helps you calculate the maturity amount for an RD account, taking into account the deposit amount, tenure, and interest rate. In this guide, we'll discuss how to calculate RD interest.

What is RD?

Recurring Deposit is a fixed income instrument offered by banks and post offices in India. Some key features of RD accounts are:

  • Fixed deposit amount - You must deposit a fixed predetermined amount at a defined frequency such as monthly, quarterly, etc.
  • Fixed tenure - RD accounts come for a pre-defined period such as 1 year, 2 years, 3 years etc. There is no maximum duration.
  • Fixed returns - The interest rate is fixed once you open the RD account. So, your returns are guaranteed.
  • Flexible deposit option - You can deposit monthly, quarterly, half-yearly, or annually, depending on your preference. The total deposits in a year should meet the minimum amount criteria.
  • Loan facility - Many banks offer loans against your RD accounts up to a certain limit.
  • Tax benefits - RDs up to Rs. 1.5 lakhs qualify for tax benefit under Section 80C. The accumulated interest is taxable.

RD accounts are ideal for disciplined investors looking for guaranteed returns to meet short or medium term goals. The maturity corpus can be used to fund expenses for education, buying property, marriage, vacation, or other objectives.

How to Calculate RD Interest and Maturity Amount?

When you open an RD account, your investment grows in two ways:

1. Principal - Your monthly or periodic deposits towards the account

2. Interest - The interest rate offered by the bank accrues on principal and compounds annually

The maturity amount of the RD account is calculated using the following formula:

Maturity Amount = Total Principal + Interest on Principal

The total principal is easy to calculate - just multiply your periodic deposit by the total tenure in months or years.

Calculating the interest component is trickier. Here is the formula to calculate interest for RD:

Formula to Calculate RD interest

Interest = Monthly Deposit x {[(1+i)n - 1]/i} x i
i = Annual interest rate/12 (as interest is compounded monthly)
n = Tenure in months
Let's understand this better with the help of an example.

Say you have an RD account with the following details:
Monthly deposit - Rs. 5,000
Tenure - 5 years (60 months)
Interest rate - 7% p.a.
Monthly deposit (A) = Rs. 5,000
Total tenure in months (n) = 60
Annual interest rate (i') = 7%
Monthly interest rate (i) = 7/12 = 0.583%
Plugging this in the formula,
Interest = 5000 x {[(1+0.00583 )^60 - 1]/0.00583} x 0.00583 = Rs. 69,048
Total principal for 60 months = 60 x 5000 = Rs. 3,00,000

Therefore, maturity amount = Principal + Interest

= Rs. 3,00,000 + Rs. 69,048

= Rs. 3,69,048

So if you save Rs. 5,000 per month in an RD for 5 years at 7% interest, your maturity amount after 5 years will be Rs. 3,69,048.
Let's take one more example to understand the calculation better.
Suppose you have the following RD account:
Monthly deposit - Rs. 10,000
Tenure - 3 years (36 months)
Interest rate - 6.7% p.a.
Doing the math similarly:

Monthly deposit (A) = Rs. 10,000
Total tenure in months (n) = 36
Annual interest rate (i') = 6.7%
Monthly interest rate (i) = 6.7/12 = 0.558%
Plugging this in the formula,
Interest = 10000 x {[(1+0.00558)^36 - 1]/0.00558} x 0.00558
= Rs. 41,1432
Total principal for 36 months = 36 x 10000 = Rs. 3,60,000
Maturity amount = Rs. 3,60,000 + Rs. 41,432 = Rs. 4,01,432

So if you save Rs. 10,000 per month in an RD for 3 years at 6.7% interest, your maturity amount after 3 years will be Rs. 4,01,432.

This is how you can calculate the maturity amount for any RD account once you know the periodic deposit amount, tenure and interest rate.

How can RD Calculator Help you?

Doing the compound interest compound interest calculation manually can get tedious and complex. This is where using an online RD calculator comes in handy. An RD calculator is a valuable tool that does all the math automatically for you. Just enter the RD details - deposit amount, tenure, interest rate - and the online RD calculator will provide the maturity amount instantly. Some key benefits of using an RD calculator are:

Saves time - Manual calculation, especially for long tenures, can be time-consuming. The automated calculator reduces effort and provides instant results.

Accuracy - Removes chances of any human errors in complicated calculations. You get precise results every time.

Testing different scenarios - An online calculator allows you to easily test different combinations of amounts, tenure, interest rates etc. and compare maturity amounts.

Visual representation - Some calculators provide a graphical representation of your RD investment and how it grows over the tenure. This helps better understanding.

Anytime, anywhere access - Being online, these RD return calculator are accessible 24x7 on computers or mobile phones. You don't have to be at home or office.

Advantages of Using RD Maturity Calculator

Here are some key advantages of using an RD maturity calculator for your recurring deposits:

  • Estimate returns - The most crucial benefit of the RD calculator is that it helps you estimate the maturity amount for your RD investment. You get a clear picture of returns.
  • Goal planning - Based on the estimated future value, you can plan your goals better. E.g. you can determine how much monthly investment you need to save Rs. 10 lakhs for your child's education in 10 years.
  • Tenure optimization - Using different tenures in the calculator helps identify the ideal deposit period to achieve your target corpus. Longer tenures give higher returns.
  • Interest rate comparison - Most banks offer varying interest rates for RDs. The calculator allows you to analyze returns across banks at different rate and choose the option that maximizes your earnings.
  • Ladder strategy - You can use the calculator to develop an RD ladder by opening multiple RDs with staggered tenures and maturity dates. This provides liquidity and reinvestment benefits.
  • Tax planning - Section 80C rebate allows you to save taxes on RDs. The calculator helps ascertain your tax saving amount per year and plan taxes better.

Using online RD calculators can help optimize your recurring deposit investment significantly.

How to Use the IIFL RD Calculator Online?

IIFL Securities offers a user-friendly online RD calculator that can be accessed for free on their website. Here are simple steps to use it:

Follow these steps to use IIFL's GST calculator:

  • Once you open the IIFL RD calculator page
  • Enter the monthly investment amount
  • Select the tenure from the dropdown - minimum 1 year to maximum 10 years
  • Interest rate will be auto-populated based on tenure. You can override this and enter a custom rate as well.
  • Select the deposit frequency - monthly, quarterly, half-yearly etc. The tool auto-calculates the periodic deposit amount.
  • Choose tax status and your tax slab. This is used to calculate post-tax returns.
  • Click on Calculate. The output screen will display a detailed breakup of the maturity amount and interest accrued. It also shows the tax saving under Section 80C.

You can tweak the inputs and recalculate multiple times to analyze different scenarios. Results can be downloaded as PDF.

The calculator also generates informative charts depicting the RD investment growth over the tenure. Overall it provides a quick, intuitive, and visual outlook of your RD returns.


An RD calculator is an invaluable tool for planning and optimizing your recurring deposits. It takes away the complexity of calculations and provides a clear picture of your investment growth and returns. The key is to use the power of compounding to your benefit by starting early, investing for longer tenures, and using the calculator to determine the ideal monthly deposits to achieve your goals.

Stay disciplined, utilize tax benefits, and reinvest maturity proceeds for a richer future. Be it a house, car, education or retirement, smart use of an RD calculator goes a long way in staying on track to reach these goals.


Q1. How is RD interest calculated annually or monthly?

RD interest calculation happens monthly but is compounded on an annual basis. The interest accrues every month based on the monthly deposit and rate. However, at the end of the financial year, the interest for the year is reinvested to the principal. This leads to compounded annual growth.

Q2. Which is the best RD calculator?

The IIFL RD calculator is among the best ones available online. It is easy to use, provides a detailed breakup and visual charts, and lets you download results. Other good options are calculators from Bank Bazaar, Moneycontrol, Dhan, and ClearTax.

Q3. What is the maturity value of RD?

The maturity value of an RD account is the total lump sum amount you receive at the end of the tenure. It is calculated as the total deposits made over the tenure plus the cumulative interest accrued. An online RD calculator helps you determine the maturity value easily.

Q4. How to calculate the post office RD maturity amount?

Post office RD calculation happens similar to a bank RD. Just enter the monthly deposit, tenure, and interest rate offered by post office (currently 5.8% p.a.) in the RD calculator to compute the maturity amount. No need for complex manual calculations.

Q5. Which is better RD or FD?

RD and FD have different benefits for investors. RD inculcates savings discipline by requiring fixed monthly deposits. FD offers complete lump sum investment flexibility. RD provides guaranteed returns, while FD rates are market-linked. Consider your needs and investment style before deciding between the two.