Converter
Annual ↔ Monthly Rate Converter
No Sign-Up. No Paywall.
Convert interest rates between annual and monthly — essential for EMI calculations and savings planning.
For EMI calculations: Banks use simple monthly rate (annual ÷ 12). The effective compound rate gives you the true annualised cost of borrowing.
Frequently Asked Questions
How do I convert a monthly interest rate to annual?
For simple interest, multiply the monthly rate by 12. For compound interest, use the formula: Annual Rate = (1 + monthly rate)^12 − 1. This tool does both conversions automatically.
What is the effective annual rate (EAR)?
EAR accounts for compounding within a year. For example, a 1% monthly rate compounded monthly gives an EAR of about 12.68% — not 12%. Our tool calculates EAR accurately.
Do banks in India quote flat or reducing rates?
RBI mandates that banks quote interest rates on an Effective Annual Rate (EAR) basis for transparency. However, many NBFCs and fintech lenders still quote flat rates. Use our Flat to Reducing Rate Converter to compare.
Can I convert a daily rate to annual?
Yes. Select ‘Daily → Annual’ in the converter. For compounding, it calculates (1 + daily rate)^365 − 1.