Compound Interest Calculator
Calculate how your investment grows with compound interest over time.
Principal
$10,000.00
Total Interest
$10,096.61
Final Balance
$20,096.61
Balance Breakdown
Year-by-Year Growth
| Year | Balance | Interest Earned | Total Interest |
|---|---|---|---|
| 1 | $10,722.90 | +$722.90 | $722.90 |
| 2 | $11,498.06 | +$775.16 | $1,498.06 |
| 3 | $12,329.26 | +$831.20 | $2,329.26 |
| 4 | $13,220.54 | +$891.28 | $3,220.54 |
| 5 | $14,176.25 | +$955.71 | $4,176.25 |
| 6 | $15,201.06 | +$1,024.80 | $5,201.06 |
| 7 | $16,299.94 | +$1,098.89 | $6,299.94 |
| 8 | $17,478.26 | +$1,178.32 | $7,478.26 |
| 9 | $18,741.77 | +$1,263.51 | $8,741.77 |
| 10 | $20,096.61 | +$1,354.84 | $10,096.61 |
Formula: A = P × (1 + r/n)^(n×t) — no additional contributions modeled.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Compound Interest Calculator really free?
Yes. Compound Interest Calculator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Compound Interest Calculator upload my data?
No. Compound Interest Calculator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Compound Interest Calculator is ready to use on desktop or mobile.
Does Compound Interest Calculator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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