Calculating your maturity value is straightforward once you know the RD formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the RD Calculator.
What is RD?
The RD calculation tells you your maturity value from a few simple inputs. The figure you are solving for here is the maturity value, expressed in INR.
The RD formula
This calculation combines several inputs through a multi-step method rather than a single one-line formula. Enter the values below and the calculator resolves each step in order. The inputs it needs are:
- Monthly deposit — a money amount. Example: ₹5,000.
- Interest rate (p.a.) — a percentage, such as an annual rate. Example: 6.5%.
- Tenure — a value you set on the slider. Example: 60 months.
How to calculate it step by step
- Write down the monthly deposit (for example, ₹5,000).
- Write down the interest rate (p.a.) (for example, 6.5%).
- Note the tenure (for example, 60 months).
- Apply the formula above to get your maturity value.
- Double-check the result with the RD Calculator.
Worked examples
Example 1
| Input / Output | Value |
|---|---|
| Monthly deposit | ₹5,000 |
| Interest rate (p.a.) | 6.5% |
| Tenure | 60 months |
| Maturity value | ₹3,55,284 |
| Total deposited | ₹3,00,000 |
| Interest earned | ₹55,284 |
With monthly deposit of ₹5,000, interest rate (p.a.) of 6.5% and tenure of 60 months, the maturity value works out to ₹3,55,284.
Example 2
With monthly deposit of ₹10,000, interest rate (p.a.) of 6.5% and tenure of 60 months, the maturity value works out to ₹7,10,568.
| Result | Value |
|---|---|
| Maturity value | ₹7,10,568 |
| Total deposited | ₹6,00,000 |
| Interest earned | ₹1,10,568 |
Example 3
With monthly deposit of ₹2,500, interest rate (p.a.) of 6.5% and tenure of 60 months, the maturity value works out to ₹1,77,642.
| Result | Value |
|---|---|
| Maturity value | ₹1,77,642 |
| Total deposited | ₹1,50,000 |
| Interest earned | ₹27,642 |
Tips for an accurate result
- Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
- Round only at the very end. Rounding inputs early can shift the final answer noticeably.
- Re-run the numbers whenever an input changes, rather than estimating from an old result.
- Annual rates must be converted to the period you are calculating for (for example, divide an annual rate by 12 for a monthly figure).
Prefer not to do the maths by hand? — the RD Calculator does it instantly, for free, with the formula and a worked example built in.
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