postal savings estimate

Post Office FD Calculator

Estimate Post Office fixed deposit interest, maturity amount and payout options. Enter the applicable rate for the deposit term you are checking and compare the result with other FD scenarios.

Free online tool INR estimates Browser-based

post office fixed deposit tool

Calculate your Post Office FD returns

Use your deposit amount, current quoted rate and tenure. The tool is an independent estimate and does not replace the latest official Post Office terms.

Inputs are calculated in your browser and are not sent to this site by the calculator.

Deposit amount

₹

Enter the principal you plan to invest. Annual interest rate

%

Use the rate shown by your bank or Post Office.

Tenure Tenure unit

Interest option

Cumulative Monthly payout Quarterly payout

Customer type Use this only when the quoted rate already includes a senior citizen premium. Compounding frequency

Result

Your estimated FD return

Ready

Enter your details and select Calculate FD returns to see the estimate.

AssumptionsRates are editable assumptions. Confirm current rates, terms and tax treatment with the provider.

CurrencyAmounts are shown in Indian rupees (INR).

postal FD planning

A clear Post Office FD interest estimate

This Post Office FD calculator is designed for people comparing a Time Deposit scenario with a bank fixed deposit. Enter the principal and the rate that applies to your chosen Post Office term, then select cumulative growth or a payout view. The result separates the original deposit from estimated interest so the comparison is easier to follow.

Post Office rates and product conditions can change by quarter or notification. The calculator keeps the rate editable instead of presenting an unverified live rate as fact. Before investing, check the current official rate, minimum deposit, eligible tenure, nomination rules and premature closure conditions for the exact product.

Use the related monthly interest page when regular income is your main goal. Use the maturity mode when you want to understand the estimated final value. Taxes, TDS and individual eligibility are outside this general estimate and should be reviewed separately.

For a like-for-like comparison, keep the principal and tenure fixed while testing the Post Office rate against SBI, HDFC or another provider. Record the product name, effective date and payout mode so a later rate update does not make the scenarios look comparable when their assumptions have changed.

four quick steps

How to use this Post Office FD calculator

1

Choose your amount

Enter the principal you would place in a Post Office Time Deposit.

2

Check the rate

Use the current rate for the exact term, not a rate from a different period.

3

Set the term

Choose years or months to match the scenario you are researching.

4

Compare the result

Review maturity or payout estimates and verify the official terms before acting.

calculation notes

How the Post Office FD estimate works

The calculator uses the standard fixed-deposit compound interest structure for cumulative mode:

A = P (1 + r / n) ^ (n x t)

The formula uses your principal, annual rate, compounding frequency and tenure. A real Post Office calculation may use product-specific rules, rounding, account dates and rate notifications. Treat this as a planning estimate and confirm the exact maturity value at the post office or official source.

worked example

Example Post Office FD calculation

Example input: INR 100,000 deposit | 6.9% annual rate | 5 years | Quarterly compoundingChange the rate to match the current term-specific rate, then compare Cumulative with Monthly payout for a cash-flow view.

The example shows how the page works without claiming that the displayed rate is current for every Post Office product. The rate field is intentionally editable so the tool remains useful when official rates change.

rate freshness matters

Use the current Post Office terms

Post Office deposit rates are time-sensitive. A rate shown in an old article, screenshot or search result may not apply to the period in which you open the account. Treat the example rate as a placeholder until you check the current official notification or product information for the exact Time Deposit term.

The calculator can help you compare a Post Office scenario with SBI, HDFC or another bank, but the comparison is only meaningful when the rates, tenure and payout assumptions are current. Keep the official source, rate date and product name with your notes. Do not use this page as confirmation of eligibility, tax treatment or a guaranteed return.

Use the provider's product name and term when checking a Post Office rate, because a five-year Time Deposit scenario is not interchangeable with a shorter term or another small-savings product. After entering the verified rate, compare cumulative and payout modes separately and keep the official notification with your calculation record.

A Post Office Time Deposit estimate should be tied to the exact term you intend to open. Do not copy a rate from a different quarter or assume that a five-year rate applies to every available period. Write the effective date beside the rate before comparing the result with a bank fixed deposit.

The calculator shows a gross estimate and cannot confirm eligibility, nomination, account opening documents or premature withdrawal conditions. Those details belong to the current official product information. Use the estimate to understand the arithmetic, then check the provider's notice before treating the maturity value as a planning input.

When comparing a Post Office deposit with SBI or HDFC, keep the principal and tenure constant and enter each provider's verified rate separately. A fair comparison also labels whether the result is cumulative or payout-based. This prevents a large maturity value from being compared with a stream of monthly interest as if they were the same outcome.

post office questions

Post Office FD calculator FAQ

What is a Post Office FD calculator?

It is an estimate tool for calculating interest and maturity amount on a Post Office fixed deposit using a deposit amount, rate and tenure.

Does this use the latest Post Office FD interest rate?

The rate is editable and the page does not claim a live rate. Check the official current rate for the exact term, then enter it into the calculator.

Can I calculate Post Office FD monthly interest?

Yes. Select Monthly payout and enter the applicable rate to estimate regular gross interest. Use the provider's official illustration for the final payout.

What are common Post Office FD tenures?

Post Office Time Deposit products can offer defined terms, but availability and rules should be checked against the current official product information before you invest.

Does the calculator include Post Office tax or TDS?

No. It provides a gross planning estimate and does not calculate personal income tax, TDS or other deductions.

Can I compare Post Office FD with SBI FD?

Yes. Use the same principal, tenure and applicable rates, then compare the results through the Post Office, SBI and general FD calculator pages.

Why can my official maturity value differ?

Official calculations may use exact deposit dates, rounding, product rules, rate notifications and tax or account adjustments that are outside this general calculator.

Is this an official Post Office calculator?

No. It is an independent estimation tool. Confirm rates, eligibility, documentation and the final maturity illustration with the official provider.