[{"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# BMI Calculator\n\nCalculate your Body Mass Index (BMI) to assess whether your weight is in a healthy range. Supports both metric and imperial measurements. Get instant results with BMI category, healthy weight range, and health insights.\n\nUnit System Imperial (ft/in, lbs) Metric (cm, kg)\n\nHeight\n\nft\n\nin\n\nWeight\n\nlbs\n\nHeight\n\ncm\n\nWeight\n\nkg\n\nCalculate BMI\n\nYour BMI\n\n—\n\n—\n\n## BMI Scale\n\nUnderweight  \n\u0026lt;18.5\n\nNormal  \n18.5–24.9\n\nOverweight  \n25–29.9\n\nObese  \n≥30\n\n## Details\n\n**Healthy Weight Range:** —\n\n**BMI Prime:** —\n\n## Related Products\n\n[⚖️ Smart Body Scales →](https://www.amazon.com/s?k=smart%20body%20weight%20scale%20bluetooth\u0026tag=tejji-20) [⌚ Fitness Trackers →](https://www.amazon.com/s?k=fitness%20tracker%20band\u0026tag=tejji-20) [📘 Health Books →](https://www.amazon.com/s?k=health%20wellness%20books\u0026tag=tejji-20)\n\n*As an Amazon Associate, tejji.com earns from qualifying purchases.*\n\n## Frequently Asked Questions\n\n### What is BMI?\n\nBMI (Body Mass Index) is a simple measure that uses your height and weight to work out if your weight is in a healthy range. It's calculated as weight (kg) divided by height (m) squared.\n\n### Is BMI accurate for athletes?\n\nBMI can overestimate body fat in athletes and those with muscular builds, and underestimate it in older adults who have lost muscle. For a more complete picture, consider body fat percentage measurements.\n\n### What is BMI Prime?\n\nBMI Prime is your BMI divided by 25 (the upper limit of normal). A value of 1.0 means you're at the threshold. Below 1.0 is normal weight, above is overweight.\n\n### Is this the best free BMI calculator?\n\nThis BMI calculator supports both imperial and metric units, shows your BMI category, BMI Prime, and a healthy weight range — all for free with no sign-up. It runs entirely in your browser.\n\n### Is this BMI calculator accurate and safe to use?\n\nAll calculations follow the standard BMI formula (weight ÷ height²) and run locally in your browser. No personal data is collected or sent to any server.\n\n## Related Tools\n\n[🔥 Calorie Calculator health](/apps/calorie-calculator) [📏 Body Fat Calculator health](/apps/body-fat-calculator) [⇄ Kg to Lbs converter](/convert/kg-to-lbs) [⇄ Lbs to Kg converter](/convert/lbs-to-kg) [📈 Compound Interest Calculator finance](/apps/compound-interest-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":"BMI Calculator | Free Online Tool | Tejji","description":"Free online BMI calculator — calculate your Body Mass Index from height and weight instantly. Supports metric and imperial units. 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":""}}]