Interest Calculator
See how much your money earns over time.
Interest Details
Total Interest
Simple vs compound interest
Simple interest: only the original principal earns interest. Great for short periods and simple loans.
Compound interest: interest earns interest. Choose a compounding frequency to see the effective annual rate — continuous compounding gives the highest return, followed by daily, monthly and quarterly.
Interest Calculator FAQ
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Interest Calculator — fixed and recurring deposits, one tool
Whether you're evaluating a fixed deposit (FD) or a recurring deposit (RD), this interest calculator tells you exactly how much your money grows — with a choice of simple or compound interest and the correct payout frequency for Indian banks.
FD vs RD explained
Fixed Deposit: one lump sum for a fixed term, typically compounded quarterly at 5.5–8%.
Recurring Deposit: fixed monthly contributions for a term, ideal for salaried savers building a goal gradually.
Both are safer than equity and produce guaranteed returns, making them the core of an emergency fund and short-term goal planning.
Why compounding frequency matters
Quarterly compounding (used by most Indian FDs) earns more than annual compounding on the same rate.
$1,00,000 at 7% over 5 years: annual compounding gives $1,40,255, quarterly gives $1,41,475 — about $1,200 more.
Effective annual rate = (1 + r/n)^n − 1. A 7% rate compounded quarterly is effectively 7.19%.
How to use this calculator
- Choose FD (lump sum) or RD (monthly deposit) mode.
- Enter the deposit amount(s).
- Input the rate and tenure.
- Select the compounding frequency and read total maturity and interest earned.
Pro tips
- For FDs, book deposits in a ladder (1, 2, 3 years) for flexibility.
- Senior citizens earn up to 0.5–1% more on FDs.
- Reinvest the interest for maximum compounding.