Free Compound Interest Calculator
See how money grows with compounding — choose yearly, half-yearly, quarterly or monthly compounding.
- 100% free
- No limits
- No upload
- No watermark
- Works on mobile
How to use the Compound Interest Calculator
- 1
Enter the amount
Principal, annual rate and years.
- 2
Pick compounding
Yearly, half-yearly, quarterly or monthly.
Why use Qu-Outil's Compound Interest Calculator
Fast, private and free — with no limits.
All frequencies
Compare how often interest is added.
Instant and private
Everything happens in your browser as you type. Your text is never sent to a server.
Free and unlimited
No sign-up, no limits and no ads in the way. Use it as often as you like.
Works on any device
Fully responsive — works the same on a phone, tablet or computer.
Compound Interest Calculator — frequently asked questions
What is the formula?
A = P × (1 + r/n)^(n×t), where n is the number of compounding periods per year.
Is it free?
Yes — free with no sign-up and no limits.
Is my text stored or uploaded?
No. Everything runs in your browser; nothing you type is sent to a server or saved.
Help keep Qu-Outil free
I build and run these tools in my free time and keep them free for everyone — no ads, no sign-up. If they helped you, buy me a chai or coffee via Google Pay or any UPI app. Your support keeps me building more free tools. Completely optional.
samarthdalela@oksbiThe button opens Google Pay, PhonePe or Paytm on your phone. On desktop, scan the QR.
Scan to pay ₹50
Works with any UPI app