Compound Interest Calculator

See exactly how your money grows over time with a plug-and-play compound interest calculator built as a Google Sheets and Excel spreadsheet. Enter your starting balance, monthly contribution, interest rate, and time horizon, and every projection updates instantly. No add-ons, no macros, no manual formulas.

WHO IT’S FOR

• Beginner investors wanting a simple investment growth calculator
• Savers planning retirement, a house deposit, or an emergency fund
• Parents and students modeling long-term savings goals
• Finance creators who need a clean compound interest template

WHAT YOU GET

• Auto-calculating compound interest spreadsheet for Google Sheets and Excel
• Adjustable monthly or annual contributions, rate, term, and compounding frequency
• Year-by-year growth table splitting deposits from interest earned
• Built-in chart showing your balance curve over the full time horizon

HOW IT WORKS

1. Download the file and open it in Excel or make a copy in Google Sheets.
2. Type your starting amount, contribution, interest rate, and number of years.
3. Read your projected balance, total interest, and growth chart instantly.

WHY GROWTORIA
Built by operators who use these tools daily, human-tested in both Google Sheets and Excel, and we reply to every question within 48 hours.

POLICY
Instant digital download, no physical item. Sales are final once delivered. A faulty file? We fix or replace it. Buy once, no subscription.