Finance / India
RD Calculator: Estimate in Rupees
Estimate a recurring deposit maturity from monthly instalments with quarterly compounding.
RD Calculator: Estimate in Rupees: Models equal instalments at the beginning of each month. Quarterly growth is converted into fractional-quarter geometric accrual for the monthly payments. Shows annual deposits, interest and deposit value, plus any final partial year. Actual bank schedules and late-payment rules may differ. Runs 100% locally in your browser with zero server file uploads.
- Category
- Business & admin tools
- Runs
- In your browser
- Cost
- Free · no sign-up
- Availability
- Ready to use
Runs entirely in your browser
Results are estimates. Rates, payment dates, fees and taxes can change the actual amount.
Quarterly compounding, with instalments at the beginning of each month. M = P × [(1+i)^(n/3) − 1] ÷ [1 − (1+i)^(-1/3)], where i = annual rate (%) ÷ 400 and n is the number of months. At zero interest, M = P × n.
Fractional quarters use geometric accrual. Actual bank day counts, late instalments, rounding and premature closure rules can change the maturity amount.
Deposit value
Years 1 to 5Chart scale: ₹0 to ₹3,59,663.95
| Year | Deposits | Withdrawals | Interest / growth | Deposit value |
|---|---|---|---|---|
| 1 | ₹60,000 | ₹0 | ₹2,310.66 | ₹62,310.66 |
| 2 | ₹60,000 | ₹0 | ₹6,788.24 | ₹1,29,098.9₹1.29 lakh |
| 3 | ₹60,000 | ₹0 | ₹11,587.58 | ₹2,00,686.49₹2.01 lakh |
| 4 | ₹60,000 | ₹0 | ₹16,731.8 | ₹2,77,418.28₹2.77 lakh |
| 5 | ₹60,000 | ₹0 | ₹22,245.67 | ₹3,59,663.95₹3.6 lakh |
Quarterly compounding
India Post, savings schemes and quarterly RD compounding: https://www.indiapost.gov.in/banking-services/savings
This is a generic recurring-deposit estimate, not a forecast of a particular bank or post-office product.
Geometric annuity formula
OpenStax, geometric series and annuities: https://openstax.org/books/intermediate-algebra-2e/pages/12-3-geometric-sequences-and-series
Monthly factor = (1+i)^(1/3). Sum the growth of each beginning-month instalment up to maturity. At zero interest, M = P × n.
How to use it
- Enter amounts and choose the calculation options shown.
- Adjust the rate and duration to match your assumptions.
- Read the estimate, year-by-year chart and table, then download the CSV.
Privacy & limitations
Calculations and CSV exports run in your browser. Your financial inputs are not uploaded.
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Frequently asked questions
Which formula is used?
M = P × [(1+i)^(n/3) − 1] ÷ [1 − (1+i)^(-1/3)], where P is the monthly instalment, i is annual rate (%) ÷ 400 and n is months.
Are late instalments included?
No. Every instalment is assumed to arrive at month start. Penalties, bank rounding and early closure are excluded.
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