Compound Interest Calculator — Free Online Tool
Use Compound Interest Calculator free online — no sign-up required. Fast, secure, and works in all modern browsers.
Investment Details
Final Balance
20,096.61
Total Contributed
10,000.00
Interest Earned
10,096.61
Contributions vs Interest
Contributions (50%)Interest (50%)
Year-by-Year Growth
| Year | Interest | Balance |
|---|---|---|
| Year 1 | +722.90 | 10,722.90 |
| Year 2 | +775.16 | 11,498.06 |
| Year 3 | +831.20 | 12,329.26 |
| Year 4 | +891.28 | 13,220.54 |
| Year 5 | +955.71 | 14,176.25 |
Formula
A = P(1 + r/n)^(nt)
P = principal · r = annual rate · n = compounding periods/year · t = years
Frequently Asked Questions about Compound Interest Calculator
- Is Compound Interest Calculator completely free?
- Yes, Compound Interest Calculator is 100% free with no registration, no usage limits, and no hidden costs. Use it as many times as you need.
- Is my data private?
- Compound Interest Calculator runs entirely in your browser — nothing is ever sent to our servers. Your data stays on your device at all times.
- Does it work offline?
- Once the page has loaded, Compound Interest Calculator works fully in your browser without an internet connection.
- How accurate are the calculations?
- All calculations use standard mathematical formulas and are accurate to at least 4 decimal places. Results are for guidance only.
- Can I use it on my phone or tablet?
- Yes, Compound Interest Calculator is fully responsive and works on smartphones and tablets with any modern browser.
This tool runs entirely in your browser. No data is ever sent to our servers.