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🎂AgeBirthday to age
🔡ASCII ArtPhoto → text art
📐Aspect Ratio16:9, resolutions
⚖️BMIHeight & weight
👙Bra SizeUS, UK, EU, FR
⠃BrailleText to braille
AaCase ConverterUPPER, camelCase
👗Clothing SizeUS, UK, EU systems
🎨ColorHEX, RGB, HSL
🎨Color PaletteExtract from image
📈Compound InterestFuture value
🍳Cooking SubsIngredient swaps
📍CoordinatesDecimal ↔ DMS
⏰Cron ExpressionSchedule reader
🎨CSS Unitspx, em, rem, vw
📊Data FormatJSON ↔ XML ↔ CSV
📅Date & TimeUnix timestamps
🏷️Discount% off, markup
🐕Dog AgeAVMA formula
📶Download TimeSpeed → time
⚡Electricity CostWatts to $
😀Emoji / UnicodeCodepoints
🔤Font Sizepx, pt, em, rem
💄Foundation ShadePhoto → MAC, Fenty, more
🔢Fraction / Decimal½ ↔ 0.5 ↔ 50%
📝Grade / GPALetter ↔ GPA
🔐Hash GeneratorMD5, SHA-256
🖼️Image FormatJPG, PNG, WebP
🌐IP AddressDecimal ↔ binary
📋JSON FormatterBeautify & minify
🏦Loan PaymentMonthly payment
📑Markdown / HTMLMD ↔ HTML
🎵Music / FrequencyHz ↔ MIDI
🔊NATO PhoneticAlpha Bravo
🔢Number to Words42 → forty-two
🖌️Paint ColorPhoto → SW, BM, Behr
📄Paper SizeA0–A6, mm, inches
📄Paper WeightGSM ↔ lb bond
📄PDF & WordDocument converter
📊Percentage% of, % change
📱QR CodeText to QR
📖Reading LevelFlesch-Kincaid
🔌Resistor ColorsColor code
💍Ring SizeUS, UK, EU, mm
🏛️Roman NumeralsXIV ↔ 14
💰SalaryHourly ↔ yearly
🔬Scientific Notation1.5 × 10³
👟Shoe Size (Men's)US, UK, EU, CM
👠Shoe Size (Women's)US, UK, EU, CM
🚗Speed / DistanceTriangle solver
📝Text EncodingBinary, base64
📊Text StatisticsWord count
⏳Time UntilDate countdown
🕐Time ZoneAny zone to any
🧾Tip & SplitBill calculator
✒️TypographyPoints, picas
🏷️Unit PriceCompare prices
🖥️UNIX Permissions755 ↔ rwxr-xr-x
🔑UUID Generatorv4, formats
🔌Wire GaugeAWG ↔ mm ↔ mm²
Convert colors between HEX, RGB, HSL, and CMYK formats. Enter a color in any format and instantly see its equivalent in all other color spaces.
Result
rgb(255, 87, 51)
Try these: #FF5733 (vibrant red-orange) · rgb(0, 128, 255) (sky blue) · hsl(120, 100%, 50%) (pure green)
Encode and decode text between binary, hexadecimal, base64, URL encoding, HTML entities, and morse code.
Result
Fun fact: "Hello" in binary is 01001000 01100101 01101100 01101100 01101111 · In base64 it's SGVsbG8=
Convert between US, UK, and EU sizing systems. Select a type below to get started.
Result
Common lookups: US 10 men's shoe = EU 43 = UK 9.5 · US M clothing = EU 38-40 · Ring size US 7 = EU 54 · US 34DD bra = EU 75E = FR 90E · AWG 12 wire = 2.053 mm
Convert GPS coordinates between decimal degrees (40.7128°) and degrees, minutes, seconds (40° 42' 46.08") format.
Result
Famous locations: Statue of Liberty: 40.6892° N, 74.0445° W · Eiffel Tower: 48.8584° N, 2.2945° E
Convert between Unix timestamps (seconds since January 1, 1970) and human-readable dates in ISO 8601 format.
Result
Key timestamps: 0 = Jan 1, 1970 · 1000000000 = Sep 9, 2001 · 2000000000 = May 18, 2033
Convert text between 11 case formats: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, and aLtErNaTiNg.
Result
Developer favorites: "hello world" → camelCase: helloWorld · PascalCase: HelloWorld · snake_case: hello_world
Convert images between JPEG, PNG, WebP, GIF, and BMP formats with adjustable quality. All processing happens in your browser — images are never uploaded.
Tip: WebP is typically 25-35% smaller than JPEG at similar quality. Use PNG for images that need transparency.
Convert structured data between JSON, XML, YAML, and CSV formats. Paste data in one format and get the equivalent in another.
Result
When to use which: JSON for APIs · XML for configuration · YAML for human-readable configs · CSV for spreadsheets
Convert between Markdown and HTML. Paste Markdown to get clean HTML, or paste HTML to get Markdown.
Result
Quick Markdown: **bold** · *italic* · # Heading · [link](url) · `code` · - list item
Generate cryptographic hash digests for any text. Supports MD5, SHA-1, SHA-256, and SHA-512 algorithms. Useful for checksums and data integrity verification.
Hash Result
Hash of "Hello World": MD5: b10a8db1... · SHA-256: a591a6d4...
Convert between fractions, decimals, and percentages. Enter any one form and see the other two instantly.
Result
Common conversions: 1/3 = 0.333... = 33.33% · 3/8 = 0.375 = 37.5% · 7/8 = 0.875 = 87.5%
Convert numbers to and from scientific notation and engineering notation. Handles very large and very small numbers.
Result
Examples: 299,792,458 = 2.998 × 10⁸ (speed of light in m/s) · 0.000001 = 1 × 10⁻⁶
Convert between font size units: pixels (px), points (pt), em, and rem. The standard base is 16px = 12pt = 1em = 1rem.
Result
Common sizes: Body text: 16px = 12pt · H1: 32px = 24pt · Small print: 12px = 9pt
Calculate aspect ratios and resolutions. Enter a width and height to find the ratio, or enter a ratio and one dimension to find the other.
Result
Standard ratios: 16:9 (widescreen) · 4:3 (classic) · 21:9 (ultrawide) · 1:1 (square) · 9:16 (vertical video)
Convert any text to the NATO phonetic alphabet used by military, aviation, and emergency services worldwide. A = Alpha (Alfa), B = Bravo, C = Charlie.
Result
Spelling out "HELLO": Hotel Echo Lima Lima Oscar
Convert text to Unicode Braille characters. Each letter maps to a specific Braille cell pattern.
Result
Braille alphabet: a = ⠁ · b = ⠃ · c = ⠉ · hello = ⠓⠑⠇⠇⠕
Look up the Unicode codepoint for any emoji or character. Paste an emoji to see its hexadecimal codepoint and UTF-8 encoding.
Result
Popular emojis: 😀 = U+1F600 · ❤️ = U+2764 · 🎵 = U+1F3B5
Convert IP addresses between dotted decimal (192.168.1.1), decimal (3232235777), hexadecimal (0xC0A80101), and binary notation.
Result
Special addresses: 127.0.0.1 = localhost · 192.168.x.x = private network · 255.255.255.255 = broadcast
Convert UNIX file permissions between octal notation (755) and symbolic notation (rwxr-xr-x). Essential for server administration.
Result
Common permissions: 755 = rwxr-xr-x (executables) · 644 = rw-r--r-- (files) · 700 = rwx------ (private)
Convert between resistance values (ohms) and the 4-band resistor color code used in electronics.
Result
Color order: Black(0) Brown(1) Red(2) Orange(3) Yellow(4) Green(5) Blue(6) Violet(7) Gray(8) White(9)
Convert cron schedule expressions into human-readable descriptions. Enter a 5-field cron expression to see when it runs.
Result
Common schedules: 0 0 * * * = daily at midnight · 0 */2 * * * = every 2 hours · 0 9 * * 1 = Mondays at 9am
Convert between musical note names, frequencies in Hz, and MIDI numbers. Based on A4 = 440 Hz standard tuning.
Result
Reference notes: A4 = 440 Hz = MIDI 69 · Middle C (C4) = 261.63 Hz = MIDI 60 · A0 (piano low) = 27.5 Hz
Convert the current time between any two time zones. Select source and destination zones, and optionally set a specific time.
Result
Major offsets: EST = UTC-5 · PST = UTC-8 · GMT = UTC+0 · JST = UTC+9 · IST = UTC+5:30
Enter a birthdate to see your exact age in years, months, weeks, days, hours, and minutes — plus your zodiac sign, Chinese zodiac animal, generation, day of the week you were born, and days until your next birthday.
Age Breakdown
Generations: Silent (1928-1945) · Boomer (1946-1964) · Gen X (1965-1980) · Millennial (1981-1996) · Gen Z (1997-2012) · Alpha (2013+)
Convert dog years to human years using the AVMA (American Veterinary Medical Association) formula. The first year counts as 15 human years, the second as 9, and subsequent years vary by size.
Human Age Equivalent
Size matters: A 5-year-old small dog ≈ 36 human years · A 5-year-old giant breed ≈ 45 human years
Convert between letter grades (A+ through F), GPA (0.0-4.0), percentages, UK degree classifications (First, 2:1, 2:2), and ECTS grades (A-F).
All Equivalents
GPA scale: A = 4.0 · B+ = 3.3 · B = 3.0 · C+ = 2.3 · C = 2.0 · D = 1.0 · F = 0.0
Convert any integer into its English word representation. Handles numbers up to 999 trillion.
In Words
Examples: 42 → "forty-two" · 1,000,000 → "one million" · 2,025 → "two thousand and twenty-five"
Convert between standard numbers (1-3999) and Roman numerals using the traditional subtractive notation.
Result
Key numerals: I=1 · V=5 · X=10 · L=50 · C=100 · D=500 · M=1000 · MMXXVI=2026
Convert pay between hourly, daily, weekly, bi-weekly, monthly, and yearly amounts. Assumes 40 hours/week and 52 weeks/year by default.
Salary Breakdown
Quick reference: $25/hr = $52,000/yr · $50,000/yr = $24.04/hr · $75,000/yr = $2,884.62 bi-weekly
Calculate the tip and total for any bill amount at 15%, 18%, 20%, and 25%. Split the total evenly among any number of people.
Tip & Split
Standard tips: 15% = adequate · 18% = good · 20% = great · 25% = exceptional service
Three modes: calculate the sale price from a discount percentage, calculate the marked-up price from a markup percentage, or find the percentage difference between two prices.
Result
Examples: $80 with 25% off = $60 · $50 with 40% markup = $70 · From $120 to $90 = 25% off
Calculate monthly payments for any loan using the standard amortization formula. See total interest paid and the interest-to-principal ratio.
Payment Breakdown
Example: $250,000 mortgage at 6.5% for 30 years = $1,580.17/month · Total interest: $318,861
Convert appliance wattage into electricity costs. Enter watts, hours of daily use, and your electricity rate to see daily, monthly, and yearly costs.
Electricity Cost
Common appliances: Space heater (1500W) · Hair dryer (1200W) · Refrigerator (150W avg) · LED bulb (10W) · Gaming PC (500W)
Convert download speed and file size into estimated download time. Supports Mbps, Gbps, MB/s, and common file sizes.
Download Time
Real-world: 1GB movie at 100 Mbps ≈ 80 seconds · 50GB game at 25 Mbps ≈ 4.4 hours
Calculate Body Mass Index from height and weight. Supports both imperial (lbs, ft/in) and metric (kg, cm) inputs.
BMI Result
BMI categories: Under 18.5 = underweight · 18.5-24.9 = normal · 25-29.9 = overweight · 30+ = obese
Get detailed statistics for any text — character count (with and without spaces), word count, sentence count, paragraph count, average word length, reading time, and speaking time.
Text Statistics
Reading speeds: Average reading: 238 words/minute · Average speaking: 150 words/minute
Find ingredient substitutions with exact amounts for 10 common ingredients. Each ingredient has 5 alternatives with adjusted quantities.
Substitutions
Popular swaps: 1 cup butter → ¾ cup olive oil · 1 egg → ¼ cup applesauce · 1 cup milk → 1 cup oat milk
Calculate percentages instantly. Find what X% of a number is, determine what percentage one number is of another, or calculate the percentage change between two values.
Result
Common examples: 20% tip on $85 → $17 · 15% off $60 → $9 savings · Price went from $50 to $65 → 30% increase
Compare prices across different package sizes by converting to a common unit. Enter the price and unit size to see the cost per ounce, pound, kilogram, and more.
Price Per Unit
Quick comparisons: $3.99/lb = $0.25/oz = $8.80/kg · The 24oz jar at $4.99 ($0.21/oz) beats the 12oz at $2.89 ($0.24/oz)
Convert a principal amount into its future value with compound interest. See how your money grows over time with different compounding frequencies — annually, quarterly, monthly, or daily.
Future Value
The power of compounding: $10,000 at 7% for 30 years → $81,165 (monthly) vs $76,123 (annually) · Doubling time ≈ 72 ÷ rate (Rule of 72)
Convert any date into a time breakdown — how many days, weeks, months, and hours until a future date, or since a past date. Great for countdowns, planning, and tracking milestones.
Time Breakdown
Try it: How many days until your birthday? · Days since you were born · Weeks until a deadline · How long ago was a historical date
Convert between CSS units used in web development. Set your base font size and viewport width to see accurate conversions between px, em, rem, pt, vw, vh, and percentages.
CSS Equivalents
Common conversions: 16px = 1rem = 12pt (default) · 14px = 0.875rem · 20px = 1.25rem · 1vw on 1920px screen = 19.2px
Convert any text or URL into a scannable QR code. The QR code is generated entirely in your browser — nothing is sent to a server. Download the image to share or print.
QR Code
Uses: Share a URL · WiFi login (WIFI:T:WPA;S:network;P:password;;) · Contact info · Event tickets · Payment links
Convert between minified and formatted JSON. Paste compressed JSON to beautify it with proper indentation, or format clean JSON into a minified single line for production use.
Result
Tip: Paste a messy API response to instantly make it readable. Switch to Minify mode to compress formatted JSON for production.
Convert any text into its reading difficulty level using the Flesch-Kincaid formula. See the grade level, reading ease score, and detailed text statistics. Used by educators, writers, and content creators.
Reading Level
Score guide: 90-100 = 5th grade (very easy) · 60-70 = 8th grade (standard) · 30-50 = college level · 0-30 = graduate/professional · Most web content targets grade 7-8
Generate random UUID v4 identifiers or convert existing UUIDs between formats — with dashes, without dashes, uppercase, or URN format. UUIDs are generated locally in your browser.
UUID
UUID v4 format: xxxxxxxx-xxxx-4xxx-[89ab]xxx-xxxxxxxxxxxx · The 4 indicates version, the 8/9/a/b indicates variant · 2¹²² possible UUIDs (5.3 × 10³⁶)
Convert paper weight between GSM (grams per square meter) and US pound weights for Bond (writing/copy paper), Cover (card stock), and Text (book paper) stock. Essential for print and design work.
Paper Weight Equivalents
Common papers: Standard copy paper = 20 lb bond = 75 gsm · Business cards = 80 lb cover = 216 gsm · Cardstock = 65 lb cover = 176 gsm · Book pages = 60 lb text = 89 gsm
The speed-distance-time triangle: given any two values, instantly calculate the third. Choose what to solve for, enter the known values, and pick your preferred units.
Result
Examples: 60 mph for 2.5 hours = 150 miles · 100 km at 80 km/h = 1.25 hours · Marathon (42.2 km) in 4 hours = 10.55 km/h
Convert between typographic units: points, picas, millimeters, centimeters, and inches. Based on the PostScript standard where 72 points = 1 inch.
Result
Key relationships: 72 pt = 1 inch = 6 picas = 25.4 mm · 1 pt = 0.3528 mm
Upload a photo and click any spot to find the closest matching paint color across Sherwin-Williams, Benjamin Moore, and Behr — simultaneously. Unlike brand-specific tools that only show their own colors, we compare all three brands side by side so you can see which has the closest match. Powered by CIELAB Delta E 2000 — the same perceptual color matching standard used by the paint industry — with 7×7 region averaging for accuracy.
Click anywhere on the image to match a paint color (averages a 7×7 pixel region for accuracy)
Picked Color
Best Paint Matches (CIELAB ΔE 2000)
Why this is different: Sherwin-Williams, Benjamin Moore, and Behr each have their own color-matching tools — but they only show you their colors. We match against all three brands at once with 250+ real paint colors, so you can compare which brand has the closest match. Uses CIELAB Delta E 2000 (the industry standard for perceptual color distance) and 7×7 pixel region averaging. A ΔE below 3 means most people can't tell the colors apart.
Upload a photo and click any skin tone to find matching foundation shades across MAC, Fenty Beauty, Maybelline, L'Oréal, and Estée Lauder — all compared side by side. Also detects undertone (warm, cool, or neutral). Uses CIELAB Delta E 2000 perceptual color matching with 7×7 region averaging.
⚠️ Lighting matters: For best results, use a photo taken in natural daylight without makeup. Screen colors are approximate — always swatch in-store before purchasing.
Click on any skin area — cheek or jawline works best (averages a 7×7 pixel region)
Detected Skin Tone
Best Foundation Matches (CIELAB ΔE 2000)
Why this is different: MAC, Fenty, Maybelline, L'Oréal, and Estée Lauder each have shade finders — but they only match to their own shades. We compare 189 shades across all five brands at once so you can see which brand has the closest match for your skin. Screen representations are approximate — always test in person before buying.
Upload any image to extract its dominant color palette. Returns 6 key colors as HEX, RGB, and HSL codes — useful for design projects, branding, or matching colors from photos.
Extracted Palette
Uses: Match paint colors from a sunset photo · Pull brand colors from a logo · Find accent colors from interior design photos · Create cohesive palettes from nature shots
Convert any photo into ASCII text art. Adjust the width and character density to get the look you want. Copy the result to use in comments, READMEs, or terminal art.
ASCII Art
Tips: Lower width = smaller art · Works best with high-contrast images · Portraits and silhouettes produce the clearest results
Convert between PDF and Word document formats. Extract text from PDFs into editable .txt, or convert Word documents (.docx) into plain text. All processing happens in your browser — no files are uploaded to any server.
Extracted Text
Supported: PDF files (text-based, not scanned images) · Word .docx files · All processing is private and happens entirely in your browser