[{"content":{"header":"[Tejji.com](/)\n\n[Contact](/contact)\n\nInstall\n\nMenu\n\nApps \u0026 Tools\n\n[Mortgage Calculator](/apps/mortgage-calculator) [Loan EMI Calculator](/apps/loan-emi-calculator) [Compound Interest Calculator](/apps/compound-interest-calculator) [Investment Calculator](/apps/investment-calculator) [Retirement Calculator](/apps/retirement-calculator) [Future Value Calculator](/apps/future-value-calculator) [Net Present Value Calculator](/apps/net-present-value-calculator) [Inflation Calculator](/apps/inflation-calculator) [Salary Calculator](/apps/salary-calculator) [Income Tax Calculator](/apps/tax-calculator) [Sales Tax Calculator](/apps/sales-tax-calculator) [Tip Calculator](/apps/tip-calculator) [Percentage Calculator](/apps/percentage-calculator) [APR to APY](/apps/apr-to-apy) [Money Converter](/apps/money-converter) [Send Money](/apps/send-money) [Invoice Generator](/apps/invoice-generator) [Calculator](/apps/calculator) [BMI 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Calculator](/apps/future-value-calculator)\n- [Net Present Value Calculator](/apps/net-present-value-calculator)\n- [Inflation Calculator](/apps/inflation-calculator)\n- [Salary Calculator](/apps/salary-calculator)\n- [Income Tax Calculator](/apps/tax-calculator)\n- [Sales Tax Calculator](/apps/sales-tax-calculator)\n- [Tip Calculator](/apps/tip-calculator)\n- [Percentage Calculator](/apps/percentage-calculator)\n- [APR to APY](/apps/apr-to-apy)\n- [Money Converter](/apps/money-converter)\n- [Send Money](/apps/send-money)\n- [Invoice Generator](/apps/invoice-generator)\n- [Calculator](/apps/calculator)\n\n\u003c!--THE END--\u003e\n\n- Health\n- [BMI Calculator](/apps/bmi-calculator)\n- [Body Fat Calculator](/apps/body-fat-calculator)\n- [Calorie Calculator](/apps/calorie-calculator)\n\n\u003c!--THE END--\u003e\n\n- Education\n- [GPA Calculator](/apps/gpa-calculator)\n- [Grade Calculator](/apps/grade-calculator)\n\n\u003c!--THE END--\u003e\n\n- Developer\n- [JSON Formatter](/apps/json-formatter)\n- [Regex Tester](/apps/regex-tester)\n- [Hash Generator](/apps/hash-generator)\n- [UUID Generator](/apps/uuid-generator)\n- [Unix Timestamp Converter](/apps/timestamp-converter)\n- [Cron Builder](/apps/cron-expression-builder)\n- [Base64 Encoder](/apps/encode-decode-base64)\n- [HTML Encoder](/apps/encode-decode-html)\n- [HTML to Text](/apps/html-to-text)\n- [URL Encoder Decoder](/apps/url-encoder-decoder)\n- [Markdown Editor](/apps/markdown-editor)\n- [Meta Tag Generator](/apps/meta-tag-generator)\n- [QR Code Generator](/apps/qr-code-generator)\n- [Password Generator](/apps/password-generator)\n- [Color Picker](/apps/color-picker)\n- [Character Count](/apps/character-count)\n- [Typo Generator](/apps/typo-generator)\n\n\u003c!--THE END--\u003e\n\n- Fun\n- [Age Calculator](/apps/age-calculator)\n- [Date Calculator](/apps/date-calculator)\n- [What Day Is It](/apps/what-day-is-it)\n- [Lottery Number Generator](/apps/lottery-number-generator)\n\n\u003c!--THE END--\u003e\n\n- Productivity\n- [Pomodoro Timer](/apps/pomodoro-timer)\n\n\u003c!--THE END--\u003e\n\n- Math\n- [Pythagoras Theorem](/apps/pythagoras-theorem)\n- [Roman Numeral Converter](/apps/roman-numeral-converter)\n\n# Compound Interest Calculator\n\nCalculate compound interest on savings and investments with flexible compounding frequencies. Great for investors, students, and anyone planning long-term finances. See detailed growth projections and compare compounding scenarios.\n\nInitial Investment ($)\n\nMonthly Contribution ($)\n\nAnnual Interest Rate (%)\n\nTime Period (Years)\n\nCompound Frequency Annually Semi-Annually Quarterly Monthly Daily\n\nReset\n\nFuture Value\n\n$0.00\n\nTotal Deposits\n\n$0.00\n\nTotal Interest\n\n$0.00\n\nEffective Rate\n\n0%\n\n📱 Install Tejji for quick access to this tool Install\n\n## Principal vs Interest\n\nPrincipal 50%\n\nInterest 50%\n\n## Growth Over Time\n\n## Year-by-Year Breakdown\n\nYearOpening BalanceInterestClosing Balance\n\n📱\n\nQuick Access\n\nInstall this tool on your device for instant access\n\nInstall App\n\n## Related Products\n\n[📘 Investing Books →](https://www.amazon.com/s?k=investing%20compound%20interest%20books\u0026tag=tejji-20) [🔢 Financial Calculators →](https://www.amazon.com/s?k=financial%20calculator%20business\u0026tag=tejji-20) [📒 Savings Journals →](https://www.amazon.com/s?k=savings%20goal%20planner%20journal\u0026tag=tejji-20)\n\n*As an Amazon Associate, tejji.com earns from qualifying purchases.*\n\n## Frequently Asked Questions\n\n### What is compound interest?\n\nCompound interest is interest calculated on both the initial principal and the accumulated interest from previous periods. This \"interest on interest\" effect causes wealth to grow exponentially over time, following the formula A = P(1 + r/n)^(nt).\n\n### How does compound frequency affect returns?\n\nMore frequent compounding (daily vs. annually) results in slightly higher returns because interest is added to the principal more often. However, the difference is relatively small — daily compounding at 8% yields about 8.33% effective rate vs. 8% for annual.\n\n### What is the Rule of 72?\n\nThe Rule of 72 is a quick way to estimate how long it takes to double your money. Divide 72 by your annual interest rate. At 8%, your money doubles in approximately 72 ÷ 8 = 9 years.\n\n### What is the best free compound interest calculator?\n\nThis compound interest calculator is completely free, requires no sign-up, and runs entirely in your browser. Enter your principal, rate, and time period to see year-by-year compound growth instantly.\n\n### Is this compound interest calculator accurate and safe?\n\nYes. All calculations run locally in your browser using the standard compound interest formula A = P(1 + r/n)^(nt). No data is sent to any server and no personal information is collected.\n\n📱\n\nQuick Access\n\nInstall this tool on your device for instant access\n\nInstall App\n\n## Related Tools\n\n[💹 Investment Calculator finance](/apps/investment-calculator) [🏖 Retirement Calculator finance](/apps/retirement-calculator) [🏦 Loan EMI Calculator finance](/apps/loan-emi-calculator) [📊 Inflation Calculator finance](/apps/inflation-calculator) [💰 Salary Calculator finance](/apps/salary-calculator) [🧾 Tax Calculator finance](/apps/tax-calculator)\n\n📱\n\nQuick Access\n\nInstall this tool on your device for instant access\n\nInstall App","footer":"\n\n📱 Install Tejji for quick access to this tool Install\n\nTools\n\n- [All Apps](/apps/)\n- [Converters](/convert/)\n- [IP Tools](/ip/)\n- [Calculator](/apps/calculator)\n\nExplore\n\n- [Time \u0026 Date](/time-date/)\n- [Postal Codes](/zip-codes/)\n- [Typing](/typing/)\n- [Extensions](/browser/chrome/extensions/)\n\nCompany\n\n- [About](/home/about)\n- [Contact](/home/contact)\n- [Privacy](/home/privacy)\n- [Terms](/home/terms)\n\nSupport\n\n- [Feedback](/home/contact)\n- [Buy me a coffee](https://buymeacoffee.com/tejji)\n\n© 2026 [Tejji.com](/) — Free online tools for everyone.\n\nWe use cookies for analytics and ads. By clicking \"Accept\", you consent to our use of cookies. [Privacy Policy](/home/privacy)\n\nReject Accept"},"metadata":{"title":"Compound Interest Calculator | Free Online Tool | Tejji","description":"Free online compound interest calculator — see how your money grows over time with compounding. Enter principal, rate, time, and frequency to get instant results. No sign-up required.","imageUrl":"https://tejji.com/page/og-default.png","author":null,"published":null,"modified":null},"rate":{"price":{"priceMicros":0,"currency":""},"license":{"cuid":"","licenseType":"","licensePath":"","permissions":[],"validUntil":""},"error":""}}]