[{"content":{"header":"[Tejji.com](/)\n\n[Contact](/contact) [Sign in](/account/signin)\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/compound-interest-calculator)\n- [Investment Calculator](/apps/investment-calculator)\n- [Retirement Calculator](/apps/retirement-calculator)\n- [Future Value 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\nPercentage Calculator\n\n# Percentage Calculator\n\nSolve any percentage problem instantly — find percentages, percentage differences, and proportions. Perfect for students, shoppers calculating discounts, and professionals analyzing data. Supports multiple calculation modes for every scenario.\n\nX% of Y X is what % % Change\n\n% of = 0\n\nis what % of = 0%\n\nFrom To = 0 0%\n\n## Quick Reference\n\n10%\n\n20%\n\n25%\n\n33%\n\n50%\n\n75%\n\n100%\n\n150%\n\n200%\n\n## History\n\nClear\n\nTimeCalculationResult\n\n## Related Products\n\n[🔢 Scientific Calculators →](https://www.amazon.com/s?k=scientific%20calculator%20engineering\u0026tag=tejji-20) [📘 Math Reference Books →](https://www.amazon.com/s?k=math%20reference%20book%20formulas\u0026tag=tejji-20) [📋 Desk Pads →](https://www.amazon.com/s?k=desk%20pad%20mouse%20mat%20large\u0026tag=tejji-20)\n\n*As an Amazon Associate, tejji.com earns from qualifying purchases.*\n\n## Frequently Asked Questions\n\n### How do I calculate a percentage?\n\nTo find X% of Y, multiply Y by X and divide by 100. For example, 20% of 150 is (150 × 20) / 100 = 30.\n\n### How do I calculate percentage increase or decrease?\n\nSubtract the old value from the new value, divide by the old value, and multiply by 100. A positive result is an increase; a negative result is a decrease.\n\n### How do I find what percentage one number is of another?\n\nDivide the part by the whole and multiply by 100. For example, 30 is what percent of 150? (30 / 150) × 100 = 20%.\n\n### What are common percentage conversions?\n\nCommon fractions to percentages: 1/2 = 50%, 1/3 ≈ 33.33%, 1/4 = 25%, 1/5 = 20%, 1/8 = 12.5%, 3/4 = 75%.\n\n### Is this the best free percentage calculator?\n\nYes — this percentage calculator offers three modes (X % of Y, reverse percentage, and percentage change), runs entirely in your browser, and requires no sign-up. It is one of the most versatile free percentage tools available.\n\n### Is this percentage calculator accurate and safe to use?\n\nAll calculations happen locally in your browser using standard arithmetic — nothing is sent to a server. Results are accurate to full floating-point precision, so you can trust both the accuracy and privacy.\n\n## Related Tools\n\n[💵 Tip Calculator finance](/apps/tip-calculator) [📈 Compound Interest Calculator finance](/apps/compound-interest-calculator) [🧾 Tax Calculator finance](/apps/tax-calculator) [💰 Salary Calculator finance](/apps/salary-calculator) [💹 Investment Calculator finance](/apps/investment-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":"Percentage Calculator – Multiple Modes \u0026 Quick Reference | Tejji","description":"Free online percentage calculator — compute percentages, percentage change, and percentage of totals instantly. Multiple calculation modes, 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":""}}]