BMI Calculator
Check your BMI instantly to understand weight status, health risk level, and practical guidance for improving results safely.
Accurate, fast, and 100% free online tools designed to simplify calculations, conversions, and everyday problem-solving for students, professionals, and individuals worldwide.
FreeToolCalculator provides reliable online calculators, converters, and utility tools that deliver instant results with precision. From percentage calculations to unit conversions and health tools, everything is built to save time and reduce errors.
Our tools are browser-based, mobile-friendly, and require no registration—making them accessible anytime, anywhere.
Check your BMI instantly to understand weight status, health risk level, and practical guidance for improving results safely.
Estimate body fat percentage using the US Navy method for men and women with categories, gauge results, and guidance.
Calculate daily calorie needs with BMR and activity level to maintain, lose, or gain weight using clear infographic results.
Calorie Deficit Calculator. Find your maintenance calories and set a daily deficit. See target intake, weekly loss estimate, and practical macro guidance.
Calorie Surplus Calculator. Calculate maintenance calories and set a daily surplus. See target intake, weekly gain estimate, and balanced macro guidance.
Calories Burned Calculator. Estimate exercise calories burned using MET values, your weight, and duration. Compare activities and calculate total burn easily.
Estimate your monthly carbon footprint from electricity and fuel usage to understand CO₂ emissions and environmental impact instantly.
Estimate daily water intake using weight, activity, climate, and goals, then view liters, cups, and a simple schedule.
Calculate a daily wellness score from sleep, steps, hydration, mood, stress, and exercise. Get a score and tips.
Find your healthy weight range using BMI and compare ideal weight estimates from popular formulas based on height and gender.
Calculate metabolic age from your BMR and compare it to your real age to understand your metabolism in seconds.
Track cycle dates to estimate fertile window, ovulation, next period, pregnancy test day, and due date with infographic results.
Screen Time Impact Tool, measure how screen time affects sleep, focus, mood, and eye strain. Get an impact score and reduction tips.
Sleep Calculator, find ideal bedtimes or wake-up times using 90-minute sleep cycles and a fall-asleep buffer for better rest.
Calculate ideal bedtimes or wake-up times using 90-minute sleep cycles and sleep latency for smoother mornings and better rest.
Steps to Calories Converter, Convert daily steps into calories burned using weight and pace. Estimate distance, walking time, and calorie burn accurately.
Strength Level Calculator, Estimate your 1RM and compare against strength standards by bodyweight. See your level for bench, squat, deadlift.
Calculate your stress score using sleep, workload, mood, anxiety, and energy. Get stress level band and tips.
Calculate your Total Daily Energy Expenditure plus Macro Breakdown and activity level, then get macro targets for cutting, maintenance, or bulking goals.
Workout Calorie Burn Tool. Log multiple exercises with duration and MET to estimate workout calories burned. Get totals, averages, and shareable summary.
Beautify, minify, and validate CSS instantly with clean indentation, safe comment handling, fast copy buttons, and clear output stats.
Comprehensive HTML entity list featuring ASCII, ISO 8859-1 characters/symbols, math, Greek, and miscellaneous with names, numbers, and descriptions for easy reference.
Escape or unescape HTML entities instantly, protect markup, copy clean output, view stats, and validate text safely for developers today.
Beautify and minify HTML with clean indentation, safe formatting, quick copy buttons, and helpful stats for developers instantly.
Reduce image file size quickly using a free online image compressor designed for faster loading and high quality visuals.
Crop images quickly and accurately using a free online image cropper tool designed for clean simple and professional results.
Beautify, format, validate, and minify JavaScript instantly with clean indentation, readable output, copy buttons, and developer friendly stats.
Format, validate, prettify and minify JSON with error highlighting, line tracking, copy tools, and instant clean output.
Generate polished Lorem Ipsum paragraphs, sentences, or words with optional HTML markup, accurate stats, and one-click copy for projects.
Test regex patterns with flags, highlights, group captures, and replace previews, then copy clean reports and results instantly.
Beautify and minify SQL queries with uppercase keywords, readable indentation, quick copy buttons, and instant developer-friendly output stats.
Beautify, validate and minify XML with clean indentation, helpful validation messages, quick copy buttons, and readable developer output.
Convert XML to JSON or JSON to XML instantly with validation, pretty output, copy buttons, and clear developer friendly rules.
Add days, months, and years to any date instantly and view the calculated new date in infographic format.
Calculate exact age in years, months, and days from your birth date, with infographic results and next birthday countdown.
Find the weekday you were born by entering your birth date and view the result in infographic style instantly.
Calculate the exact difference between two dates and times in days, hours, minutes, and seconds instantly online.
Convert decimal hours into hours, minutes, and seconds instantly with validation, clean output, and visual indicators for accuracy.
Subtract days, months, and years from any date to instantly calculate a past date with this simple tool.
Convert any date and time between global time zones with DST-aware IANA zones, swap zones, and quick views.
Advanced word and character counter with line, sentence, paragraph, spaces, selection stats, reading time, and keyword density insights.
Convert text into upper, lower, camel, pascal, snake, kebab, swap, slash, backslash and spaced cases instantly.
Remove extra spaces, tabs, and blank lines from text instantly. Clean output for writing, coding, SEO, and forms.
Color Contrast Checker, check WCAG contrast ratios for text and backgrounds, see AA/AAA pass-fail, and get accessible color suggestions instantly.
Convert any color format to any other instantly, preview the color, copy outputs, and switch between designer and developer formats.
Generate a five-color theme from your primary color, preview instantly, check contrast, and copy HEX and CSS variables quickly.
CSS Gradient Generator, generate linear or radial CSS gradients with adjustable stops and angle, preview instantly, and copy clean background CSS code.
Favicon Generator, create perfect favicon sizes with live previews, download a ZIP package, and copy ready-to-use HTML icon tags.
Font Pairing, generate heading and body font pairings with previews, compatibility score, and copy-ready CSS stacks for clean typography instantly.
Logo size guide find ideal logo sizes for web, social, and print with clear checklists, presets, and scaling tips in seconds.
Social media image size tool, select platform and post type to get correct image dimensions, aspect ratio, safe tips, and copy-ready size notes quickly.
Convert binary numbers to decimal instantly using base-2 conversion with validation, accurate results, and clear numeric output online.
Convert any font size unit instantly between px, pt, em, rem, percent, viewport units, and real-world measurement formats accurately.
Convert any paper size between A-series, US formats, millimeters, centimeters, inches, and pixels instantly with accurate print dimensions.
Convert shoe sizes between US, UK, EU and CM for men, women, and kids with quick, accurate results instantly.
Convert text strings to ASCII codes or ASCII values back to readable text instantly with accurate bidirectional conversion online.
Convert SI and metric units for length, mass, time, temperature, area, volume, speed, force, pressure, energy instantly online.
This Break-Even Calculator estimates units to break even using fixed cost and contribution margin from price minus variable cost.
This Gross Profit Calculator computes gross profit from revenue and COGS, showing margin percent, profit status, and copy-ready summary instantly.
Calculate profit margin from cost and selling price to get profit, margin percent, markup, revenue totals instantly.
This ROI Calculator computes ROI percent from investment cost and return value, showing gain, ROI %, and performance status.
This VAT / Sales Tax Calculator computes tax and total from amount and tax percent, supporting inclusive and exclusive pricing modes.
Find the average of any list of numbers instantly using a free online calculator designed for accurate and quick mean calculations.
Calculate CGPA online by entering subjects, credits, and grades to get accurate cumulative GPA with clear breakdown instantly.
Compute discrete convolution of two sequences instantly from comma-separated inputs with validation, clear output series, and visual indicators.
Convert decimals to simplified fractions and fractions to decimals instantly with validation, clear output, and quick reference indicators for accuracy.
Convert degrees and radians instantly with clear formulas, quick examples, and a visual indicator for angle size and type.
Find your destiny number using a free numerology calculator that reveals your life purpose personality traits and natural abilities.
Calculate sale price, discount savings, and final total from percentage or fixed discounts, with optional tax for accuracy.
Calculate electricity usage and cost using power, usage time, and price per kilowatt-hour for accurate energy expense estimates.
Calculate the hypotenuse of a right triangle instantly using side A and side B with accurate math and clean results.
Calculate the midrange of any data set instantly using minimum and maximum values with validation and clear statistical output.
Add comma-separated numbers instantly to get an accurate total, with validation, count checks, and clean results for calculations.
Calculate areas for common shapes instantly using accurate formulas, clean inputs, and clear results designed for fast result.
Solve math expressions instantly online including brackets, percentages, and basic operators with validation and accurate real-time results.
Calculate what percent one number is of another instantly using part and total values with accurate results and validation.
Calculate a missing right-triangle side using the Pythagorean theorem by entering any two sides for instant accurate results.
Convert energy and power units in one tool, including joules, kWh, watts, kilowatts, volts, amps, calories, and BTU.
Convert pressure units instantly across pascal, kPa, MPa, bar, mbar, psi, atm, torr, mmHg, and inHg accurately.
Free online scientific calculator for trig, logs, powers, roots, factorial, and parentheses with fast, accurate results on any device.
Calculate garden or lawn area accurately using length and width, with instant conversion to square feet, meters, and yards.
Calculate the correct fertilizer quantity for your lawn using lawn size and application rate for healthy grass growth.
Calculate mulch needed using area and depth, showing cubic volume, cubic yards, and exact mulch bags required instantly.
Calculate soil required for garden or raised beds using bed dimensions and depth with instant volume results.
Create a weekly plant watering schedule based on plant type and climate conditions for efficient and healthy watering.
Calculate flooring area for any room using length and width with instant conversions to square feet, meters, and yards.
Estimate total flooring cost from room area and material price, including wastage, labor, underlay, removal, and VAT.
Plan room floor area by selecting a shape and entering dimensions to get accurate area in multiple units.
Calculate how many tiles you need using room size and tile size, including wastage and boxes, instantly.
Check any IP address to see city, region, postal code, country, ISP, coordinates, and map location instantly.
Generate strong passwords using length and character rules, exclude confusing symbols, view strength meter, then copy instantly for security.
Create QR codes with custom colors, upload your logo, choose preset designs, preview instantly, then download high-quality PNG output.
Paste any YouTube link or video ID, preview all thumbnail sizes, then download HD, HQ, MQ, and SD instantly.
Enter your birth date to instantly find your zodiac sign, element, modality, dates, and quick personality traits preview.
Body Composition Tools help users analyze physical health metrics beyond basic weight. This category includes calculators for body fat percentage, BMI, ideal weight, and related measurements. These tools provide clear insights into fitness and body structure using proven formulas. Ideal for fitness tracking, health awareness, and personal goal setting.
Converters allow users to instantly convert units, formats, and values with precision. This category includes common and advanced conversions used in daily life, science, finance, and development work. No formulas or manual calculations are required. Tools are fast, accurate, and optimized for practical real-world use.
Date & Time tools make it easy to calculate durations, differences, and future or past dates. This category includes tools for age calculation, date addition or subtraction, and time differences. Perfect for planning, scheduling, and everyday use. Results are instant, precise, and easy to understand.
Design Tools help users create, refine, and optimize visual and digital assets with ease. This category includes practical tools for designers, developers, and content creators working on graphics, layouts, colors, and formatting. Designed to save time and improve accuracy in creative workflows. All tools are simple, fast, and accessible directly in the browser without extra software.
Health tools help users understand key body and wellness metrics using simple inputs. This category includes calculators related to weight, body composition, hydration, calories, and general fitness indicators. All tools are designed for educational purposes and awareness, not medical diagnosis. Easy visuals and clear results make health insights accessible to everyone.
Lifestyle & Fun tools are created for everyday convenience, curiosity, and entertainment. From date and time tools to random generators and personal calculators, this category adds value beyond work and study. These tools are lightweight, engaging, and easy to use. Perfect for quick answers, planning, and interactive exploration.
Math tools are designed to solve numerical problems quickly and accurately. This category includes calculators and formulas commonly used in education, finance, and daily life. Users can perform arithmetic, percentages, algebra-based calculations, and more without manual effort. Ideal for students, professionals, and anyone needing fast math solutions online.
Miscellaneous tools include a mix of useful calculators and utilities that don’t fit into a single category. This section is designed for practical tools that solve quick, specific problems across different use cases. Users can find unique, flexible tools here for everyday tasks, experiments, and one-off calculations. All tools are simple, fast, and built to deliver accurate results without complexity.
Office Tools are designed to improve productivity and simplify everyday workplace tasks. This category includes calculators and utilities commonly used for documents, reports, planning, and data handling. Ideal for professionals, students, and remote workers who need quick, reliable results. All tools are easy to use, time-saving, and optimized for daily office workflows.
Science tools help simplify calculations and conversions used in physics, chemistry, biology, and general science. This category focuses on accuracy and ease of understanding complex scientific concepts. Tools are suitable for students, teachers, and researchers looking for quick results. All calculations are based on standard scientific formulas for reliable outputs.
Text & Number tools are built to analyze, transform, and optimize written content and numerical data. Whether you need to count words, format text, convert cases, or perform quick calculations, this category covers essential needs. These tools are ideal for writers, students, SEO professionals, and developers. Results are instant, accurate, and completely free.
Web & Utility tools help users perform everyday online tasks quickly and efficiently. This category includes practical tools for developers, marketers, students, and general users who need fast results without complexity. From formatting code to generating content and validating data, these tools are designed to save time. All tools are browser-based, easy to use, and require no installations.
FreeToolCalculator has made everyday calculations incredibly simple. The tools are fast, accurate, and work perfectly on mobile, which makes them ideal for daily use.
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Thousands of users rely on FreeToolCalculator for quick answers and reliable results. Our growing community trusts us for accuracy, simplicity, and consistent performance.
Yes, all tools are free to use for personal, educational, and professional purposes.
No registration is required. Simply open a tool and start using it instantly.
Yes, our tools are developed using verified formulas and tested for accuracy.
Absolutely. All tools are 100% free with no limitations.
Explore a wide range of free online calculators and tools designed to make your work easier, faster, and more accurate.