Compound Interest
Calculate compound interest online for free. Enter principal, rate, time, and compounding frequency to see future value, total interest, and a year-by-year growth table.
Runs entirely in your browser — files never uploaded
Growth Over Time
Year-by-Year Breakdown
| Year | Balance | Interest Earned | Contributions |
|---|---|---|---|
| 1 | $13,201.42 | $801.42 | $12,400.00 |
| 2 | $16,634.27 | $1,834.27 | $14,800.00 |
| 3 | $20,315.28 | $3,115.28 | $17,200.00 |
| 4 | $24,262.39 | $4,662.39 | $19,600.00 |
| 5 | $28,494.83 | $6,494.83 | $22,000.00 |
| 6 | $33,033.24 | $8,633.24 | $24,400.00 |
| 7 | $37,899.74 | $11,099.74 | $26,800.00 |
| 8 | $43,118.03 | $13,918.03 | $29,200.00 |
| 9 | $48,713.55 | $17,113.55 | $31,600.00 |
| 10 | $54,713.58 | $20,713.58 | $34,000.00 |
How to use Compound Interest
- 1. Enter your principal. Type the starting amount you plan to invest or save.
- 2. Set rate and term. Enter the annual interest rate and how many years you want to calculate.
- 3. Choose compounding frequency. Select how often interest compounds — monthly, quarterly, or annually.
- 4. Add contributions. Optionally enter a monthly contribution to see how regular deposits accelerate growth.
- 5. Review the results. See your future value, total interest, and a year-by-year growth breakdown.
FAQ
What is compound interest?
Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods, causing your money to grow exponentially over time.
How does compounding frequency affect my returns?
More frequent compounding (e.g. daily vs annually) results in slightly higher returns because interest is calculated and added to the balance more often.
Is this financial advice?
No. This calculator is an estimation tool for educational purposes. Consult a qualified financial advisor for personalized investment advice.
Does the calculator account for taxes or inflation?
No. The results show nominal growth only. Actual purchasing power may differ after accounting for taxes and inflation.
Related tools
- Hash GeneratorGenerate MD5, SHA-1, SHA-256, and SHA-512 hashes for text or files online for free. Verify file integrity with checksums. No signup.
- QR Code GeneratorCreate QR codes online for free. Generate QR codes for URLs, text, Wi-Fi networks, and more. Download as PNG or SVG. No signup.
- Password GeneratorGenerate strong, random passwords online for free. Customize length, symbols, numbers, and character sets. Cryptographically secure. No signup.
- UUID GeneratorGenerate random UUIDs (v4) online for free. Bulk generation, multiple formats: standard, no-dashes, uppercase. No signup.
- Random NumberGenerate random numbers online for free. Dice roller, coin flip, lottery number picker. Cryptographically secure. No signup.
- Barcode GeneratorGenerate barcodes online for free. Code 128, EAN-13, EAN-8, UPC-A, Code 39, ITF-14, and more. Download as PNG or SVG. No signup.