How to use this FD calculator
Enter the deposit amount, the interest rate your bank offers and the tenure. Pick Cumulative (quarterly) for a regular FD where interest is reinvested — that is how SBI, HDFC, ICICI and most banks calculate it. Pick Simple / payout if the bank pays interest out every month or quarter.
What the result means
Maturity value is what the bank pays on the last day. The effective yearly yield is higher than the card rate because quarterly compounding earns interest on interest. First-year interest decides TDS: if it crosses the limit, the bank keeps 10% and shows it in your Form 26AS.
Short FDs
For tenures under six months, many banks pay simple interest at maturity. Use the simple option for those to match the bank's figure.