Guide: How It Works

Maturity = ฮฃ P ร— (1 + r/4)^((n โˆ’ m + 1)/3), summed over each monthly deposit m

Important Notes

  • Each monthly deposit compounds for a different remaining duration until maturity
  • Interest is applied quarterly on the running balance, the common RD convention
  • Missing a deposit typically incurs a penalty depending on your bank's terms

Who Is This Calculator For?

  • Savers building a monthly savings habit
  • Anyone comparing RD and SIP returns

Examples

โ‚น2,000/month at 7% for 12 months yields a maturity value combining principal plus compounded interest per deposit.

Frequently Asked Questions

Why does each deposit compound differently?

Each monthly deposit earns interest for a different remaining duration until maturity, so each is compounded individually and summed.

Does the compounding frequency match my bank?

This tool assumes quarterly compounding, the common RD convention; confirm your bank's terms.

About the Author

This tool is built and maintained by John Britto, a Full-Stack Developer with over 5 years of experience building secure web applications. Our mission is to provide free, private, and reliable tools for everyone.