Maturity Amount Calculator — Simple & Compound Interest

Introduction

Find the maturity amount and interest on a lump-sum deposit. Switch between compound interest (typical for bank FDs) and simple interest, and enter tenure in years and months.

Disclaimer: This tool is for informational purposes only and is not professional medical, pharmaceutical, financial, or tax advice. Always verify doses with a licensed clinician or pharmacist.

Formula

Compound maturity uses A = P(1 + r/n)^(nt). Simple maturity uses A = P + PRT/100. t is tenure in years (years + months/12).

• P — Principal
• r — Annual rate as a decimal (compound)
• R — Annual rate in percent (simple)
• n — Compounding periods per year
• t — Tenure in years
• A — Maturity amount

Step-by-step

1. Enter the principal (the amount you invest or deposit).
2. Enter the annual interest rate.
3. Enter tenure in years and extra months.
4. Choose compound or simple interest. For compound, pick compounding frequency.

Worked example

₹1,00,000 at 7% p.a. compounded quarterly for 3 years matures at about ₹1,23,144. The same deposit on simple interest would mature at ₹1,21,000.

Use cases

• Estimate what a deposit will be worth at maturity
• Compare simple vs compound interest on the same principal
• Plan a goal amount for a known rate and tenure

Frequently asked questions