APY Calculator
Convert a nominal rate into the annual percentage yield (APY) for any compounding frequency. Compare FDs, bonds and savings accounts on equal terms.
APY (effective yield)
6.66%
Nominal: 6.5% p.a.
Growth factor
1.07x
₹1 grows to this much in a year
Compounding periods
4 per year
APY shows the true annual return after compounding. A 6.5% p.a. nominal rate compounded quarterly earns 6.66% per year in India — useful when comparing FDs, bonds and savings accounts that compound at different frequencies.
APY Calculator on True Calculator gives you an instant, accurate answer with no sign-up and no app install. Convert a nominal rate into the annual percentage yield (APY) for any compounding frequency. Compare FDs, bonds and savings accounts on equal terms. Every result shows the formula and a worked example so you can verify the calculation yourself, and all values are computed in your own browser — your numbers never leave your device.
Popular uses: apy calculator · annual percentage yield calculator · effective annual rate calculator
Reviewed by the True Calculator team · Last updated: August 2026
How We Calculate
This calculator uses standard financial formulas verified by our team. All calculations are performed instantly in your browser using JavaScript — no data is sent to any server.
We use RBI-approved formulas and regularly updated bank rates. All rates and standards are sourced from official government and regulatory websites.
When to Use This Calculator
APY exists to make different products comparable. In India, fixed deposits compound quarterly, savings accounts compound monthly or quarterly, bonds pay simple coupons, and some schemes quote effective rates directly — the same 7% p.a. advertised rate can mean materially different earnings depending on frequency. This calculator is useful when choosing between an FD and a corporate bond, checking a bank's marketing claim about effective yield, or comparing a debt mutual fund's expected return with a deposit. Investors also use it to convert a quoted rate into the true annual figure before feeding it into retirement or lump-sum planning. Finally, when a bank advertises an APY rather than a nominal rate, this tool works in reverse to reveal the equivalent simple rate behind the marketing number.
How to Use This Calculator
- Step 1: Enter the nominal annual rate quoted by the bank or bond — for example 6.5.
- Step 2: Choose how often interest compounds from the frequency list — quarterly for most Indian FDs.
- Step 3: Read the APY — the true annual yield after compounding is applied.
- Step 4: Repeat with a different frequency to compare products on equal terms.
Worked Example
A Chennai saver compares two fixed deposits quoted at 6.5% p.a. The first compounds quarterly; the second pays simple interest at maturity. Entering 6.5 with quarterly compounding shows an APY of 6.66% — the effective yield. Over a year, ₹1,00,000 in the quarterly-compounding FD earns ₹6,660 compared with ₹6,500 from the simple-interest deposit, because interest earned in earlier quarters earns interest itself. The growth factor shown, 1.07x, is what one rupee becomes after a full year.
Tips and Common Mistakes
- •Tip 1: Always compare deposit products by APY, never by the quoted nominal rate alone.
- •Tip 2: For fixed deposits, check the compounding schedule in the terms — most Indian banks compound quarterly.
- •Tip 3: Use the reverse direction mentally: an APY target tells you the nominal rate to look for at a given compounding frequency.
- ✗Mistake 1: Treating a nominal rate as the actual yield — with quarterly compounding even a small gap widens over long tenures.
- ✗Mistake 2: Ignoring TDS on interest; APY shows gross yield, while banks deduct 10% TDS above the annual threshold unless you submit Form 15G or 15H.
Frequently Asked Questions
What is the difference between APY and a nominal rate?
The nominal rate is the quoted annual rate before compounding; APY is what you actually earn after compounding is applied. A 6.5% p.a. rate compounded quarterly gives a 6.66% APY, so the effective yield is higher than the advertised rate.
Why do Indian banks quote rates differently from APY?
Indian banks usually quote simple annual rates, and fixed deposits state how interest is compounded — quarterly for many FDs. Comparing two FDs with the same quoted rate but different compounding frequencies is misleading without converting both to APY.
How often do Indian fixed deposits compound interest?
Most Indian banks compound FD interest quarterly, though some compound monthly or half-yearly. The compounding frequency directly changes the APY, so check the FD's terms before comparing it with a bond or savings account.
Is APY the same as the effective annual rate (EAR)?
Yes, they are the same concept — the true annual return including compounding. Some countries call it the effective annual rate; the formula is identical. This calculator also supports continuous compounding, which is used for theoretical comparisons.
Can I use this calculator for loans?
For loans, the equivalent concept is the effective interest rate or annual percentage rate (APR), which includes fees. APY works for deposits and investments where you earn interest, not for what you pay on a loan.
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