Toolzie

Compound Interest Calculator

$
%
Future Value: $--.--
Total Principal: $--.--
Total Interest: $--.--

How to Use the Compound Interest Calculator

Enter principal, rate, frequency, years, optional monthly contribution. See total, interest earned, year-by-year chart.

See compound interest power. Compare scenarios to make informed financial decisions and plan ahead.

Frequently Asked Questions

What is it?

Interest on principal plus accumulated interest exponentially grows.

Frequency?

Daily/monthly/quarterly/annual compounding increases returns.

Contributions?

Yes, add regular monthly deposits.

Advice?

Educational only; consult financial advisor for guidance.

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About This Tool

The Toolzie Compound Interest Calculator shows you how your savings or investments grow over time with compound interest. See the power of compounding across different frequencies — daily, monthly, quarterly, and annually.

How to Use

  1. Enter your principal (starting) amount.
  2. Input the annual interest rate.
  3. Select your compounding frequency (daily, monthly, etc.).
  4. Set the time period in years, then click Calculate.

Frequently Asked Questions

What is compound interest?

Compound interest earns interest on both your original principal and previously earned interest — making your money grow exponentially over time.

How often does Canadian savings interest compound?

Most Canadian high-interest savings accounts compound daily or monthly. GICs typically compound annually or semi-annually.

What is the difference between APR and APY?

APR is the annual rate before compounding. APY (Annual Percentage Yield) accounts for compounding and reflects your true annual return.

Can I use this for loan calculations?

This calculator is optimized for savings growth. Use the Loan Payment Calculator for loan repayment scenarios.