Compound Interest Calculator
Compare daily, monthly, quarterly, semi-annual, and annual compounding. See how your savings grow with regular contributions and inflation adjustment.
| Year | Balance | Interest Earned | Inflation Adj. Balance |
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All calculations happen locally in your browser. Your financial data never leaves your device. No signup, no tracking, no storage.
Compound Interest Calculator: Choose Your Compounding Frequency
Our free compound interest calculator lets you compare how different compounding frequencies affect your investment growth. Select from daily, monthly, quarterly, semi-annual, or annual compounding. Add regular contributions, factor in inflation, and see a detailed year-by-year breakdown — all in your browser with no signup required.
Compare daily, monthly, quarterly, semi-annual, and annual compounding to see which grows fastest.
Add monthly or yearly contributions. See how consistent saving amplifies your returns.
Factor in inflation to view the real purchasing power of your future savings.
View annual growth tables with balance, interest earned, and inflation-adjusted values.
Visualize your investment growth with dynamic charts that update instantly.
All calculations run locally. No uploads, no signup, no tracking — complete privacy.
How to Use This Compound Interest Calculator
1. Enter your initial principal.
2. Set your annual interest rate and number of years.
3. Choose compounding frequency (daily, monthly, quarterly, semi-annually, or annually).
4. Add regular contributions and choose whether they are monthly or yearly.
5. Optionally, enter an inflation rate to see the real value of your savings.
6. Click "Calculate Growth" to see future value, total interest, APY, and a complete year-by-year breakdown.
Why Compounding Frequency Matters
Compounding frequency determines how often interest is calculated and added to your principal. Daily compounding (365 times per year) yields the highest return because interest starts earning interest almost immediately. Monthly (12 times), quarterly (4 times), semi-annually (2 times), and annually (1 time) all produce different results. Use this tool to see the difference for your specific numbers.
The Compound Interest Formula
This calculator uses the standard compound interest formula: A = P(1 + r/n)^(nt) where:
- A = future value of the investment
- P = principal amount (initial deposit)
- r = annual interest rate (as a decimal)
- n = number of times interest is compounded per year
- t = time in years
For regular contributions, the tool calculates the future value of a series of payments with the chosen compounding frequency.
Frequently Asked Questions
Learn how to use this tool correctly by reading our step-by-step tutorial.
