Interest Rate Calculator
Find what interest rate you need to reach your financial goal.
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See how this fits your bigger picture โ Get your score
Like this number? Turn it into a goal and track it monthly
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Compound Interest
See how money grows with monthly contributions, annual step-up and yearly top-ups.
SIP / Recurring
Calculate returns from monthly investments with step-up and full yearly breakdown.
Savings Goal
How long to reach a savings goal โ or how much to save monthly to hit it by a date.
๐ก Expert Tips
The Rule of 72: divide 72 by rate to find doubling time.
Higher required return = higher risk needed.
How to read your result
This estimates the implied interest rate from a known payment, principal, and term โ it's the reverse of a typical loan calculation, useful for checking what rate you're actually being charged when a lender quotes payments without clearly stating the rate.
โ ๏ธ Common Mistakes
โ Assuming a lender's quoted 'flat rate' is equivalent to the effective annual rate.
โ Flat interest rates (calculated on the original principal for the entire term) understate the true effective rate compared to reducing-balance rates โ the effective rate can be nearly double the quoted flat rate for the same loan terms.
โ Not including all fees when back-calculating the effective rate.
โ Processing fees and other charges effectively increase the true cost of borrowing beyond the stated interest rate โ include them in the total cost for an accurate effective rate calculation.
Frequently Asked
What return is realistic?โพ
FD: 7%, Debt funds: 7-8%, Balanced: 9-10%, Equity: 11-13% over long term.
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Compound Interest Calculator
Example 1 โ Lump sum, no contributions
A = 1,00,000 ร (1.10)^10 โ โน2,59,374 โ more than 2.5ร growth