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BMI Calculator – Check Your Body Mass Index

PDF to Word

Basic text version: this extracts the readable text from a text-based PDF and saves it as an editable Word (.doc) file you can open in Microsoft Word or Google Docs. It works on PDFs that contain real text — scanned documents and complex layouts (columns, tables, images) won’t carry over.

Merge PDF

Pick two or more PDFs and they’ll be combined into a single file, in the order you selected them. Everything happens in your browser — your files are never uploaded.

    Compress PDF

    Two ways to shrink a PDF. “Re-save” tidies the file structure without touching quality. “Strong” rebuilds every page as an image at your chosen quality — much smaller for scan-heavy PDFs, but text becomes part of the image.

    JPG to PDF

    Turn one or more images (JPG, PNG, WebP and more) into a single PDF — one image per page, sized to fit the page.

      Split PDF

      Pull pages out of a PDF: either download every page as its own one-page PDF, or extract just the page range you need into a single new file.

      PDF to JPG

      Renders every page of your PDF as a JPG image and downloads them one by one (page-1.jpg, page-2.jpg…). Best for documents up to about 50 pages.

      Word to PDF

      Convert a Word document (.doc or .docx, up to 10 MB) to PDF with its layout, fonts and tables intact. Your file is sent to CloudConvert for conversion and is not stored on SavyTools.

      Word Counter

      Type or paste your text — the counts update as you write. Handy for essays, blog posts, meta descriptions and anything with a word limit.

      0Words
      0Characters
      0Chars · no spaces
      0Sentences
      0Paragraphs
      0 minReading time
      0 minSpeaking time

      Character Counter

      Counts every character as you type, and shows how close you are to the limits that matter — an X post, an Instagram caption and a Google meta description.

      0Characters
      0Chars · no spaces
      0Words
      0Sentences
      0Paragraphs
      X (Twitter) post0 / 280
      Instagram caption0 / 2,200
      Meta description0 / 160

      Plagiarism Checker

      Runs on a connected serviceChecking text for plagiarism means comparing it against billions of web pages and academic sources, which needs a live checking service behind it. This tool activates on the live SavyTools website — it isn’t connected yet, and nothing you paste here is checked or sent anywhere.

      Paraphrasing Tool

      Runs on a connected serviceGood paraphrasing needs a live AI language model to rewrite your sentences while keeping their meaning. This tool activates on the live SavyTools website — it isn’t connected yet, and nothing you paste here is rewritten or sent anywhere.

      AI Content Detector

      Runs on a connected serviceDetecting AI-written text takes a trained detection model running on a server. This tool activates on the live SavyTools website — it isn’t connected yet, and nothing you paste here is analysed or sent anywhere.

      Grammar Checker

      Check grammar, spelling and punctuation in American English, up to 5,000 characters per check. Your text is sent to the free LanguageTool checking service for analysis — it is not stored on SavyTools.

      Image Compressor

      Shrink a JPG, PNG or WebP image right in your browser. Drag the quality slider, compress, and compare the before/after file size — nothing is uploaded anywhere.

      Your uploaded image preview

      Image Resizer

      Resize an image to exact pixel dimensions. Keep the aspect ratio locked so nothing gets stretched, or pick a common preset size.

      Resized image preview

      Background Remover

      Erase the background from any photo with AI, right in your browser. Your image never leaves your device — the AI model downloads once (about 30–50 MB) and then runs locally. Best results: a clear subject against a distinct background.

      Your uploaded image preview

      QR Code Generator

      Type a link or any text and your QR code updates live. Pick a size and download a crisp PNG — handy for menus, posters, Wi-Fi cards and packaging.

      Your QR code appears here

      Password Generator

      Generates a fresh random password every time you change a setting. Longer is stronger — 16+ characters with symbols is a solid default.

      …

      Age Calculator

      Pick a date of birth to get the exact age in years, months and days — plus the total days lived and a countdown to the next birthday.

      —Exact age (y · m · d)
      —Total days
      —Next birthday
      —Born on a

      Percentage Calculator

      The three percentage questions everyone Googles — answers update as you type.

      What is X% of Y?

      Result: —

      X is what % of Y?

      Result: —

      Percentage increase / decrease

      Result: —

      Mortgage Calculator

      Estimate a US home loan: monthly principal & interest payment, total interest and the full cost of the loan. Taxes, insurance and HOA fees aren’t included.

      —Monthly payment
      —Loan amount
      —Total interest
      —Total cost (incl. down)

      Tip Calculator

      Enter the bill, pick a tip percentage and split it between everyone at the table — the tip, total and per-person share update as you type.

      —Tip amount
      —Total bill
      —Per person

      Sales Tax Calculator

      Add US sales tax to a price, or work backwards from a tax-inclusive total. Rates below are statewide base rates — your county or city may add local tax on top, so treat the result as a close estimate.

      —State base rate
      —Tax amount
      —Total with tax

      BMI Calculator

      Body mass index is a screening measure, not a diagnosis — it does not account for muscle mass, age or body composition. Use it as a rough guide and talk to a clinician for personal advice.

      —Your BMI
      —Category
      —Healthy weight for your height

      GPA Calculator

      Add your courses with their letter grades and credit hours — your weighted GPA updates instantly. Uses the standard 4.0 scale (A = 4.0, F = 0).

      —Weighted GPA
      —Total credits

      Compound Interest Calculator

      See how savings grow over time: a starting amount plus regular monthly contributions, compounded at your chosen frequency. This is a projection, not a guarantee — real returns vary.

      —Future value
      —Total you put in
      —Interest earned

      Hourly to Salary Calculator

      Turn an hourly wage into weekly, biweekly, monthly and yearly pay, assuming the same hours every week. Figures are gross pay, before taxes and deductions.

      —Weekly
      —Biweekly
      —Monthly
      —Yearly

      Date Calculator

      Pick any two dates to find the time between them — in days, weeks and approximate months. The order does not matter; earlier and later are handled automatically.

      —Days
      —Weeks
      —Months (approx)

      Unit Converter

      Convert length, weight, temperature and volume instantly. Pick a category, enter a value and choose the units — conversions update as you type.

      Result: —

      Color Converter

      Convert a color between HEX, RGB and HSL. Edit any field and the others update — the swatch below always shows the current color.

      Currency Converter

      Convert between world currencies using free live exchange rates. Rates refresh from a free public rates service — no sign-up, no key, nothing stored.

      Result: —

      Case Converter

      Change the letter case of any text — handy for titles, headings and fixing text typed with Caps Lock on. Everything stays in your browser.

      JSON Formatter

      Paste JSON to beautify it, minify it, or check it for errors. If the JSON is invalid you get a plain-English error message pointing at the problem. Nothing leaves your browser.

      Image Format Converter

      Convert an image to JPG, PNG or WebP right in your browser. JPG and WebP use the quality slider; PNG is lossless. Transparent images converted to JPG get a white background.

      Your uploaded image preview

      Your Body Mass Index (BMI) is a quick way to see where your weight sits relative to your height. Our free BMI calculator works with both metric and imperial units — kilograms and centimeters, or pounds, feet, and inches — and shows your BMI value, your category, and your healthy weight range.

      It runs entirely in your browser, so nothing you enter is sent anywhere or stored.

      How to Use the BMI Calculator

      1. Choose metric or imperial units.
      2. Enter your height and weight.
      3. See your BMI, your category (underweight, healthy, overweight, or obese), and the healthy weight range for your height.

      Frequently Asked Questions

      What is a healthy BMI?
      For most adults, a BMI between 18.5 and 24.9 is considered healthy by the World Health Organization’s categories.

      Is BMI accurate for athletes?
      Not always. BMI does not distinguish muscle from fat, so very muscular people can score high without excess body fat. Treat it as a screening guide, not a diagnosis.

      Does BMI work for children?
      Children’s BMI is interpreted against age- and sex-specific growth charts, not adult cutoffs — so this calculator is designed for adults.

      Curious about your exact age in days too? Try our Age Calculator.