compound interest calculator

See how much your savings or investments will grow over time. Calculate compound interest with customizable monthly or yearly contributions and compounding frequency.

Investment Details
$
$1k$1M
%
0.1%20%
Years
1 Year50 Years
Investment Growth

Future Value

$20096.61

Total Principal

$10,000

Total Interest

$10096.61

Quick Guide

Getting Started in Seconds

01

Initial Deposit

Enter the starting amount of your investment or savings.

02

Contribution Rate

Set your monthly or annual contributions to see accelerated growth.

03

Set Timeframe

Choose the number of years you plan to keep the money invested.

Related Tools

Support

Common
Questions

Have a different question about Compound Interest Calculator? Feel free to reach out or explore our other documentation.

1How can I see what's really happening inside my investment accounts?

Imagine you're watching a snowball roll down a hill, getting bigger with every turn—that's how compound interest works. Our calculator helps you visualize how even small monthly contributions can grow into a significant wealth engine over 10, 20, or 30 years.

2Is it really true that my financial planning stays on my computer?

Yes, that's exactly how it works. We use 'client-side' processing, which is like have a private meeting with a financial advisor in a locked room. Your deposit and contribution amounts are never sent to a server, keeping your wealth goals 100% private.

3Does this calculator handle both monthly and yearly contributions?

Imagine you're trying to figure out if a $100 monthly save is better than a $1,000 yearly bonus—accuracy is everything. Our tool lets you toggle your contribution frequency, so you can see the exact impact on your future retirement or savings target.

Compound Interest Calculator - Project Your Investment Growth | T00lz