Sitemap
Browse every calculator, converter, and tool on Numio in one place.
Categories
Health
- BMI Calculator
- BMR Calculator
- Calorie Calculator
- eGFR Calculator
- Pregnancy Due Date Calculator
- Blood Alcohol Content (BAC) Calculator
- Blood Pressure Categories — AHA 2017
- BMI Calculator for Children & Teens (Ages 2–20)
- Body Fat Calculator
- Calorie Deficit Calculator
- Conception Date Calculator
- Target Heart Rate Zones — Karvonen Method
- Ideal Weight Calculator
- Lean Body Mass Calculator
- Macro Calculator
- One-Rep Max Calculator
- Ovulation & Fertile Window Calculator
- Period & Menstrual Cycle Tracker
- Pregnancy Weight Gain Calculator
- Protein Intake Calculator
- Running Pace Calculator
- Sleep Cycle Calculator
- TDEE Calculator — Daily Calorie Needs
- Waist-to-Hip Ratio Calculator
- Daily Water Intake Calculator
- A1C ⇄ Average Glucose Converter
- Body Surface Area (BSA) Calculator
- Calories Burned Calculator
- Cholesterol Calculator
- VO₂max Calculator
- Waist-to-Height Ratio Calculator
Finance
- Compound Interest Calculator
- Loan Amortization Schedule
- Mortgage Calculator
- Retirement Savings Calculator
- Salary & Take-Home Pay Calculator
- Student Loan Payoff Calculator
- Auto Loan Calculator
- Budget Planner (50/30/20 Rule)
- CAGR Calculator
- CD Yield Calculator
- Credit Card Payoff Calculator
- Debt Payoff Calculator (Avalanche vs Snowball)
- Discount Calculator
- Down Payment Calculator
- Home Affordability Calculator (28/36 Rule)
- Income Tax Estimator
- Inflation Calculator
- Investment Return Calculator (ROI & CAGR)
- Net Worth Calculator
- US Paycheck Calculator
- Present Value Calculator
- Mortgage Refinance Break-Even Calculator
- ROI Calculator
- Sales Tax Calculator
- Savings Goal Calculator
- Simple Interest Calculator
- Tip Calculator
- VAT / Sales Tax Calculator
- APR ⇄ APY Converter
- Break-Even Calculator
- Currency Converter
- Depreciation Calculator
- Margin & Markup Calculator
- Overtime Pay Calculator
- Pension Drawdown Calculator
- Rule of 72 Calculator
- Sales Commission Calculator
Engineering
- Electrical Power Calculator
- Ohm's Law Calculator
- Beam Deflection Calculator
- Capacitor Calculator
- Concrete Volume Calculator
- Concrete Mix Calculator
- Pipe Flow Rate Calculator
- Heat Transfer Calculator
- LED Resistor Calculator
- Power Factor Calculator
- Resistor Color Code Calculator
- Area / Square Footage Calculator
- Torque Calculator
- Transformer Calculator
- Voltage Drop Calculator
- Wire Gauge Calculator
- Parabolic Antenna Gain & Beamwidth Calculator
- Bending Stress Calculator
- Dipole & Antenna Length Calculator
- Free-Space Path Loss (FSPL) Calculator
- Pump Power Calculator
- Series & Parallel Resistor Calculator
- Signal Frequency & Wavelength Calculator
- Steel / Metal Weight Calculator
Math
- Percentage Calculator
- Percentage Change Calculator
- Scientific Notation Converter
- Average Calculator
- Circle Calculator
- Exponent Calculator
- Fraction Calculator
- GPA Calculator
- GCD and LCM Calculator
- Logarithm Calculator
- Prime Factorization Calculator
- Pythagorean Theorem Calculator
- Quadratic Equation Solver
- Ratio Simplifier
- Slope Calculator
- Square Root Calculator
- Standard Deviation Calculator
- Triangle Calculator
- Arithmetic Sequence Calculator
- Combinations & Permutations Calculator
- Factorial Calculator — n! for Any Integer
- Fibonacci Calculator
- Matrix Calculator
- Modulo Calculator
- Percent Error Calculator
- Permutations Calculator (nPr)
- Proportion Solver
- Rounding Calculator
- Descriptive Statistics Calculator
- Z-Score Calculator
Conversion
- Length Converter
- Speed Converter
- Temperature Converter
- Weight/Mass Converter
- Angular Velocity Converter
- Area Converter
- Data Storage Converter
- Density Converter
- Dynamic Viscosity Converter
- Energy Converter
- Flow Rate Converter
- Force Converter
- Fuel Cost Calculator
- Kinematic Viscosity Converter
- Pressure Converter
- Time Unit Converter
- Torque Converter
- Volume Converter
- Angle Converter
- Aspect Ratio Calculator
- Average Speed Calculator
- Cooking Converter
- Download Time Calculator
- Fuel Economy Converter
- Number Base Converter
- Power Converter
- Roman Numeral Converter
- Unit Price Comparison Calculator
Tools
Developer
- Base64 Encode / Decode
- Color Converter — HEX, RGB, HSL
- JSON Formatter & Validator
- Base64 to Image Converter
- Box Shadow Generator
- Color Contrast Checker (WCAG)
- Color Palette Generator
- Cron Expression Explainer
- CSS Flexbox Generator
- CSS Formatter
- CSS Gradient Generator
- CSV to JSON Converter
- DKIM Record Checker
- DMARC Record Checker
- DNS Health Checker
- DNS Lookup (DoH)
- Fake Data Generator
- Favicon Generator
- Hash Generator (SHA)
- HTML Formatter
- IBAN Validator
- Image Compressor
- Image Format Converter
- Image Resizer
- Image to Base64 Converter
- Image to PDF
- Image to Text (OCR)
- IP Location Lookup
- JSON Diff
- JSON to CSV Converter
- JSON to TypeScript
- JSON to XML Converter
- JWT Decoder
- JWT Signer (HMAC)
- Markdown Table Generator
- Markdown to HTML
- HTML Meta Tag Generator
- Open Graph Meta Tag Generator
- Password Strength Checker
- PDF Merger
- PDF Splitter
- QR Code Generator
- QR Code Scanner
- Random Number Generator
- RDAP Lookup
- Regex Tester
- RSA Key Pair Generator
- Schema Markup (JSON-LD) Generator
- SPF Record Checker
- Subnet / CIDR Calculator
- Tailwind Shade Generator
- TC Kimlik No Validator
- Text Encrypt / Decrypt (AES)
- Unix Timestamp Converter
- Timezone Converter
- URL Encode / Decode
- UTM Campaign URL Builder
- UUID Generator (v4)
- What's My IP
- XML Formatter
- XML to JSON Converter
- YAML ↔ JSON Converter
- ARINC 429 Word Decoder & Encoder
- ASCII Banner Generator
- ASCII Table
- Atbash Cipher
- Bandwidth / Download Time Calculator
- Base32 Encode / Decode
- Base58 Encode / Decode
- Bcrypt Hash Generator & Verifier
- BIMI Record Checker & Generator
- Binary Calculator
- Border Radius Generator
- Coin Flip
- Color Mixer
- Color Shades Generator
- Colorblind Simulator
- CRC32 Checksum Calculator
- Credit Card Validator (Luhn)
- Cron Next Runs
- CSS Clamp Generator
- CSS Clip-Path Generator
- Glassmorphism CSS Generator
- CSS Minifier
- Neumorphism CSS Generator
- CSS Triangle Generator
- Cubic Bezier Editor
- Cyclomatic Complexity Calculator
- Dice Roller
- DMARC Record Generator
- Duration Between Two Datetimes
- Email Header Analyzer
- .env File Validator
- EXIF / Metadata Stripper
- .gitignore Generator
- .htaccess Redirect Generator
- HTML Entity Encode / Decode
- HTML to Markdown
- HTML to Text
- HTTP Status Codes Reference
- IBAN Generator (Test)
- Image Color Picker
- Image Cropper
- Image to ASCII Art
- IP Address Info
- IPv4 Format Converter
- IPv4 ↔ IPv6 Converter
- IPv6 CIDR Range Calculator
- IPv6 Expand / Compress
- Lottery Number Generator
- MAC Address Generator
- MAC Address Validator
- Magic 8-Ball
- MC/DC Test Case Generator
- MIME Type Lookup
- Multi URL Opener
- CSS Named Colors
- NanoID Generator
- Number Base Converter
- Pantone Converter
- PDF Rotator
- PDF Watermark
- Browser Ping / Latency Test
- Placeholder Image Generator
- Pomodoro Timer
- Pong (Browser)
- Port Number Lookup
- Punycode Converter
- Query String Builder
- RAID Calculator
- Random Color Generator
- Random Picker
- Random String Generator
- Regex Cheatsheet
- Reverse Image Search
- robots.txt Generator
- sitemap.xml Generator
- SQL Minifier
- Stopwatch
- String Escape / Unescape
- SVG Optimizer
- Text Shadow Generator
- Time Card Calculator
- Twitter / X Card Generator
- IPv6 ULA Generator
- ULID Generator
- Unicode Character Inspector
- Batch Unix Timestamp Converter
- URL Parser
- URL Rewrite Generator
- User-Agent Parser
- UTF-8 Byte Inspector
- Viewport & Screen Info
- Vigenère Cipher
- World Clock
Visualization
Data Analysis
Text
- Word & Character Counter
- Case Converter
- Find and Replace
- Lorem Ipsum Generator
- Readability Score Checker
- Remove Duplicate Lines & Sort
- Slugify — URL Slug Generator
- Text Diff Checker
- Bionic Reading Converter
- Caesar Cipher & ROT13
- Emoji Remover
- Fancy Text Generator
- Line Break Remover
- Line Numberer
- Minecraft Color Codes
- Morse Code Translator
- NATO Phonetic Alphabet Converter
- Number to Words
- Online Notepad
- Palindrome Checker
- Reading Time Estimator
- Remove Accents & Diacritics
- SERP Snippet Preview
- Syllable Counter
- Text Repeater
- Reverse Text
- Sort Text Lines
- Text to Binary Converter
- Text to Hex Converter
- Upside Down Text Generator
- Whitespace Remover
- Word Frequency Counter