Pixel Converter
Convert pixels to inches, cm, mm, pt, and more
JSON Formatter
Format, validate, and minify JSON data
Diff Checker
Compare text and find differences
Regex Tester
Test and debug regular expressions
UUID Generator
Generate unique identifiers (v1, v4)
Timestamp Converter
Convert Unix timestamps to dates
Base64 Encoder
Encode and decode Base64 strings
URL Encoder
Encode and decode URL components
Hash Generator
Generate MD5, SHA-1, SHA-256 hashes
JWT Decoder
Decode and inspect JSON Web Tokens
HTML to Markdown
Convert HTML code to Markdown syntax
Markdown to HTML
Convert Markdown to HTML code
CSS Minifier
Minify CSS code for production
CSS Formatter
Format and beautify CSS code
JavaScript Minifier
Minify JavaScript for production
JavaScript Formatter
Format and beautify JavaScript code
SQL Formatter
Format and beautify SQL queries
XML Formatter
Format and validate XML code
YAML to JSON Converter
Convert YAML to JSON format
JSON to YAML Converter
Convert JSON to YAML format
JSON to CSV Converter
Convert JSON data to CSV format
CSV to JSON Converter
Convert CSV data to JSON format
XML to JSON Converter
Convert XML to JSON format
Cron Expression Generator
Generate cron schedule expressions
Cron Expression Parser
Parse and explain cron expressions
htaccess Generator
Generate .htaccess configuration
robots.txt Generator
Create robots.txt file
HTML Entity Encoder
Encode/decode HTML entities
Unicode Converter
Convert to/from Unicode
Password Generator
Generate secure passwords
Password Strength Checker
Check password strength
HMAC Generator
Generate HMAC signatures
Checksum Calculator
Calculate file checksums
SSL Certificate Decoder
Decode SSL certificates
CSR Decoder
Decode certificate signing requests
IP Address Lookup
Lookup IP address information
Subnet Calculator
Calculate subnet masks and ranges
DNS Lookup
Lookup DNS records
WHOIS Lookup
Domain WHOIS information
HTTP Header Checker
Check HTTP response headers from any URL
User Agent Parser
Parse user agent strings to detect browser and OS
QR Code Generator
Generate QR codes from text or URLs
Barcode Generator
Generate barcodes in various formats
Inches to Centimeters Converter
Convert inches to centimeters
Feet to Meters Converter
Convert feet to meters
Miles to Kilometers Converter
Convert miles to kilometers
Yards to Meters Converter
Convert yards to meters
Millimeters to Inches Converter
Convert millimeters to inches
Nautical Miles Converter
Convert nautical miles
Light Years Converter
Convert light years to other units
Microns to Inches Converter
Convert microns to inches
Pounds to Kilograms Converter
Convert pounds to kilograms
Ounces to Grams Converter
Convert ounces to grams
Tons to Kilograms Converter
Convert tons to kilograms
Stone to Pounds Converter
Convert stone to pounds
Milligrams to Grams Converter
Convert milligrams to grams
Troy Ounces Converter
Convert troy ounces
Carats to Grams Converter
Convert carats to grams
Gallons to Liters Converter
Convert gallons to liters
Cups to Milliliters Converter
Convert cups to milliliters
Quarts to Liters Converter
Convert quarts to liters
Pints to Liters Converter
Convert pints to liters
Fluid Ounces to Milliliters Converter
Convert fluid ounces to milliliters
Cubic Feet to Cubic Meters Converter
Convert cubic feet to cubic meters
Cubic Yards to Cubic Meters Converter
Convert cubic yards to cubic meters
Barrel to Gallons Converter
Convert barrels to gallons
Square Feet to Square Meters Converter
Convert square feet to square meters
Acres to Hectares Converter
Convert acres to hectares
Square Yards to Square Meters Converter
Convert square yards to square meters
Square Miles to Square Kilometers Converter
Convert square miles to square kilometers
Hectares to Acres Converter
Convert hectares to acres
Fahrenheit to Celsius Converter
Convert Fahrenheit to Celsius
Kelvin Converter
Convert Kelvin temperature
Rankine Converter
Convert Rankine temperature
MPH to KPH Converter
Convert miles per hour to kilometers per hour
Knots Converter
Convert knots to other speed units
Mach Number Converter
Convert Mach number to speed
Feet per Second Converter
Convert feet per second
PSI to Bar Converter
Convert PSI to bar pressure
Atmospheres Converter
Convert atmospheric pressure
Pascal Converter
Convert Pascal pressure units
mmHg to kPa Converter
Convert mmHg to kilopascals
Joules to Calories Converter
Convert joules to calories
BTU to Joules Converter
Convert BTU to joules
Kilowatt Hours Converter
Convert kilowatt hours
Electron Volts Converter
Convert electron volts
Bytes Converter
Convert bytes to KB, MB, GB
Bits to Bytes Converter
Convert bits to bytes
Megabits to Megabytes Converter
Convert megabits to megabytes
Data Transfer Speed Converter
Convert data transfer speeds
Horsepower to Watts Converter
Convert horsepower to watts
Torque Converter
Convert torque units
Density Converter
Convert density units
Force Converter
Convert force units
Angle Converter
Convert degrees, radians, gradians
Character Counter
Count characters in text
Word Counter
Count words in text
Lorem Ipsum Generator
Generate placeholder text
Text Case Converter
Convert text case (upper, lower, title)
String Reverser
Reverse text strings
Duplicate Line Remover
Remove duplicate lines from text
Text to Binary Converter
Convert text to binary
Text to Hex Converter
Convert text to hexadecimal
Slug Generator
Generate URL-friendly slugs
Random String Generator
Generate random strings
Mortgage Calculator
Calculate monthly mortgage payments
Amortization Calculator
Generate loan amortization schedules
Loan Calculator
Calculate loan payments and interest
Personal Loan Calculator
Calculate personal loan payments
Auto Loan Calculator
Calculate car loan payments
Student Loan Calculator
Calculate student loan payments
Refinance Calculator
Calculate mortgage refinance savings
Home Equity Loan Calculator
Calculate home equity loan payments
HELOC Calculator
Calculate home equity line of credit
Down Payment Calculator
Calculate down payment requirements
Interest Calculator
Calculate simple and compound interest
Compound Interest Calculator
Calculate compound interest growth
APR Calculator
Calculate annual percentage rate
Credit Card Payoff Calculator
Calculate credit card payoff time
Debt Payoff Calculator
Plan debt payoff with snowball/avalanche
Debt-to-Income Calculator
Calculate your DTI ratio
Salary Calculator
Convert hourly/weekly/monthly/annual salary
Take-Home Paycheck Calculator
Calculate net pay after taxes
Commission Calculator
Calculate sales commission earnings
Budget Calculator
Plan and manage your budget
Savings Calculator
Calculate savings growth over time
Investment Calculator
Calculate investment returns
ROI Calculator
Calculate return on investment
IRR Calculator
Calculate internal rate of return
Retirement Calculator
Plan your retirement savings
401(k) Calculator
Calculate 401(k) growth and contributions
IRA Calculator
Calculate Traditional IRA growth
Roth IRA Calculator
Calculate Roth IRA growth
Inflation Calculator
Calculate inflation impact over time
Currency Calculator
Convert between currencies
Scientific Calculator
Advanced scientific calculations
Percentage Calculator
Calculate percentages easily
Probability Calculator
Calculate probability of events
Statistics Calculator
Calculate mean, variance, and more
Standard Deviation Calculator
Calculate standard deviation
Mean Median Mode Calculator
Calculate central tendency measures
Z-Score Calculator
Calculate z-scores and probabilities
Confidence Interval Calculator
Calculate confidence intervals
P-Value Calculator
Calculate p-values for hypothesis tests
Sample Size Calculator
Calculate required sample size
Triangle Calculator
Calculate triangle properties
Right Triangle Calculator
Solve right triangle problems
Circle Calculator
Calculate circle properties
Area Calculator
Calculate area of various shapes
Distance Calculator
Calculate distance between points
Fraction Calculator
Add, subtract, multiply, divide fractions
Square Root Calculator
Calculate square roots and nth roots
Exponent Calculator
Calculate powers and exponents
Logarithm Calculator
Calculate logarithms (log, ln, log10)
Factorial Calculator
Calculate factorials (n!)
Permutation Calculator
Calculate permutations (nPr)
Combination Calculator
Calculate combinations (nCr)
Prime Number Checker
Check if a number is prime
GCD LCM Calculator
Calculate greatest common divisor and LCM
Modulo Calculator
Calculate remainder (modulo operation)
Binary Calculator
Perform binary arithmetic operations
Hex Calculator
Perform hexadecimal calculations
Matrix Calculator
Matrix operations (add, multiply, determinant)
Quadratic Equation Solver
Solve ax² + bx + c = 0
Polynomial Solver
Solve and evaluate polynomials
Derivative Calculator
Calculate derivatives of functions
Integral Calculator
Calculate integrals of functions
Limit Calculator
Calculate limits as x approaches a value
Ohms Law Calculator
Calculate V = IR (voltage, current, resistance)
Force Calculator
Calculate F = ma (force, mass, acceleration)
Kinetic Energy Calculator
Calculate KE = ½mv²
Potential Energy Calculator
Calculate PE = mgh
Momentum Calculator
Calculate p = mv
Wavelength Calculator
Calculate λ = v/f
Acceleration Calculator
Calculate a = Δv/t
Density Calculator
Calculate ρ = m/v
Pressure Calculator
Calculate P = F/A
Work Calculator
Calculate W = Fd
Molar Mass Calculator
Calculate molecular weight from formula
Molarity Calculator
Calculate solution concentration (M = mol/L)
Dilution Calculator
Calculate dilutions (C1V1 = C2V2)
pH Calculator
Calculate pH from H+ concentration
Ideal Gas Law Calculator
Calculate PV = nRT
Stoichiometry Calculator
Calculate reaction ratios and yields
Half Life Calculator
Calculate radioactive decay
Electronegativity Calculator
Calculate bond polarity
Horsepower Calculator
Calculate HP from torque and RPM
0-60 Calculator
Estimate acceleration time
Quarter Mile Calculator
Calculate drag racing ET and trap speed
Tire Size Calculator
Compare tire sizes and speedometer error
Gear Ratio Calculator
Calculate final drive ratio and RPM
Fuel Cost Calculator
Calculate trip fuel expenses
Gas Mileage Calculator
Calculate actual MPG
Engine Displacement Calculator
Calculate CC from bore and stroke
Compression Ratio Calculator
Calculate engine compression ratio
Air Fuel Ratio Calculator
Calculate AFR and lambda
Speedometer Correction Calculator
Calculate actual speed after tire change
Towing Capacity Calculator
Calculate safe towing limits
Payload Calculator
Calculate truck payload capacity
Oil Change Calculator
Track oil change intervals
Car Depreciation Calculator
Calculate vehicle value over time
BMI Calculator
Calculate body mass index
TDEE Calculator
Total daily energy expenditure
Calorie Calculator
Daily calorie needs
Macro Calculator
Calculate protein/carbs/fat needs
Body Fat Calculator
Estimate body fat percentage
Ideal Weight Calculator
Calculate healthy weight range
Lean Body Mass Calculator
Calculate fat-free mass
BMR Calculator
Basal metabolic rate
Waist-to-Hip Ratio Calculator
Health risk indicator
Body Surface Area Calculator
BSA for medical dosing
One Rep Max Calculator
Estimate 1RM from reps
Heart Rate Zone Calculator
Training zones
Pace Calculator
Running/walking pace converter
Calories Burned Calculator
Exercise calorie burn
Steps to Miles Calculator
Convert step count
Running Pace Calculator
Min/mile or min/km
Cycling Calorie Calculator
Biking energy burn
Swimming Calorie Calculator
Pool workout calories
Weightlifting Volume Calculator
Sets x reps x weight
Workout Split Generator
Training schedule creator
Protein Intake Calculator
Daily protein needs
Water Intake Calculator
Daily hydration needs
Intermittent Fasting Calculator
Eating window planner
Keto Macro Calculator
Ketogenic diet macros
Carb Cycling Calculator
Carb rotation planner
Meal Prep Calculator
Portions and servings
Caffeine Calculator
Safe daily intake
Alcohol Unit Calculator
Drink units tracker
Sodium Calculator
Daily salt intake
Fiber Calculator
Daily fiber needs
Blood Alcohol Calculator
BAC estimator
Medication Dosage Calculator
Weight-based dosing
IV Drip Rate Calculator
Medical drip calculations
Blood Pressure Category Tool
BP classification
A1C to Blood Sugar Calculator
Diabetes conversion
Creatinine Clearance Calculator
Kidney function
Anion Gap Calculator
Metabolic assessment
Corrected Calcium Calculator
Albumin adjustment
Glasgow Coma Scale Calculator
Consciousness assessment
APGAR Score Calculator
Newborn health score
Pregnancy Due Date Calculator
Estimate delivery date
Ovulation Calculator
Fertile window predictor
Conception Calculator
Estimate conception date
Baby Growth Percentile Calculator
Track baby development
Pregnancy Weight Gain Calculator
Healthy weight targets
Baby Name Generator
Random name suggestions
Child Height Predictor
Estimate adult height
Breastfeeding Calculator
Feeding schedule/amounts
Diaper Cost Calculator
Estimate diaper expenses
Baby Sleep Calculator
Age-appropriate sleep needs
Paint Calculator
Calculate paint needed for walls
Flooring Calculator
Calculate flooring materials needed
Fence Calculator
Calculate fence materials and cost
Lumber Calculator
Calculate board feet and lumber needs
Drywall Calculator
Calculate drywall sheets needed
Deck Calculator
Calculate deck materials and cost
Brick Calculator
Calculate bricks needed for a project
Room Size Calculator
Calculate room square footage
AC Size Calculator
Calculate BTU requirements for AC
Water Heater Size Calculator
Calculate water heater capacity needed
Concrete Calculator
Cubic yards needed
Gravel Calculator
Tons/yards for coverage
Mulch Calculator
Cubic yards for beds
Tile Calculator
Tiles and adhesive needed
Roofing Calculator
Squares and materials
Insulation Calculator
R-value and coverage
Sod Calculator
Square feet of grass
Wallpaper Calculator
Rolls needed
Stain Calculator
Gallons for deck/fence
Asphalt Calculator
Tons for driveway
Rebar Calculator
Linear feet needed
Cement Calculator
Bags needed
Sand Calculator
Tons for project
Topsoil Calculator
Cubic yards needed
Paver Calculator
Pavers and sand needed
Stone Calculator
Tons of landscaping stone
Epoxy Calculator
Gallons for floor coating
Stair Calculator
Rise, run, and stringers
Retaining Wall Calculator
Block and materials
Beam Size Calculator
Load-bearing requirements
Joist Span Calculator
Floor joist sizing
Rafter Calculator
Roof framing dimensions
Footing Size Calculator
Foundation requirements
Column Load Calculator
Support capacity
Deck Load Calculator
Weight capacity
Header Size Calculator
Opening support
Truss Calculator
Roof truss design
Wire Gauge Calculator
Ampacity and sizing
Conduit Fill Calculator
Wire capacity
Electrical Load Calculator
Service size needs
Circuit Breaker Size Calculator
Amperage requirements
Voltage Drop Calculator
Wire length limits
Conduit Size Calculator
Wire fill capacity
Lighting Calculator
Lumens per room
Solar Panel Calculator
System size needs
Generator Size Calculator
Wattage requirements
Outlet Spacing Calculator
Code requirements
LED Equivalent Calculator
Bulb replacement
Electrical Cost Calculator
Monthly usage estimate
Pipe Size Calculator
Flow rate sizing
Water Pressure Calculator
PSI requirements
Drain Slope Calculator
Proper drainage angle
Hot Water Recovery Calculator
Tank sizing
Septic Tank Size Calculator
Household capacity
Well Pump Size Calculator
GPM requirements
Irrigation Calculator
Sprinkler coverage
Pool Volume Calculator
Gallons in pool
Hot Tub Chemical Calculator
Treatment amounts
Water Flow Calculator
GPM through pipes
BTU Calculator
Heating/cooling needs
Aspect Ratio Calculator
Calculate and convert aspect ratios
Print Size Calculator
Calculate print dimensions and DPI
Color Contrast Checker
Check WCAG color contrast ratios
DPI Calculator
Calculate dots per inch for printing
Video Bitrate Calculator
Calculate optimal video bitrate
Video File Size Calculator
Estimate video file size
Frame Rate Converter
Convert between frame rates
Screen Resolution Comparison
Compare screen resolutions
GPA Calculator
Calculate grade point average
Cumulative GPA Calculator
Calculate cumulative GPA
Final Grade Calculator
Calculate grade needed on final
Test Score Calculator
Calculate test scores and percentages
Reading Time Calculator
Estimate reading time for text
Study Time Calculator
Plan study sessions effectively
Student Budget Calculator
Plan student finances and expenses
Trip Cost Calculator
Estimate total trip expenses
Road Trip Cost Calculator
Calculate road trip gas and costs
MPG Calculator
Calculate miles per gallon
Flight Time Calculator
Estimate flight duration
Vacation Budget Calculator
Plan vacation budget and expenses
Car Lease vs Buy Calculator
Compare leasing vs buying a car
Rent vs Buy Calculator
Compare renting vs buying
Home Affordability Calculator
How much house can you afford
Closing Cost Calculator
Estimate closing costs
Property Tax Calculator
Calculate property taxes
Mortgage Points Calculator
Calculate discount point savings
Real Estate Commission Calculator
Calculate agent commissions
Cap Rate Calculator
Capitalization rate for properties
Cash on Cash Return Calculator
Calculate cash ROI
Rental Property Cash Flow Calculator
Analyze rental income
House Hacking Calculator
House hacking profitability
Appreciation Calculator
Property value growth
LTV Calculator
Loan-to-Value ratio
DSCR Calculator
Debt Service Coverage Ratio
Gross Rent Multiplier Calculator
GRM for property analysis
Operating Expense Ratio Calculator
OER for rentals
Price Per Square Foot Calculator
Cost per sq ft analysis
Prorated Rent Calculator
Calculate partial month rent
Security Deposit Calculator
Estimate security deposits
Rental Yield Calculator
Annual rental return
Vacancy Rate Calculator
Property vacancy analysis
BRRRR Calculator
Buy Rehab Rent Refinance Repeat
Biweekly Mortgage Calculator
Biweekly payment savings
Profit Margin Calculator
Calculate profit margins
Markup Calculator
Calculate product markup
Discount Calculator
Calculate sale discounts
Sales Tax Calculator
Calculate sales tax amounts
Tip Calculator
Calculate gratuity amounts
Break-Even Calculator
Find break-even point
Cost Per Unit Calculator
Unit cost analysis
Equipment Loan Calculator
Equipment financing
Working Capital Calculator
Working capital analysis
Inventory Turnover Calculator
Inventory efficiency
Accounts Receivable Calculator
AR turnover analysis
Quick Ratio Calculator
Liquidity ratio analysis
Current Ratio Calculator
Current ratio analysis
Benefits Cost Calculator
Employee benefits cost
Amazon FBA Calculator
FBA fees and profit
eBay Fee Calculator
Calculate eBay fees
Etsy Fee Calculator
Calculate Etsy fees
Shipping Cost Calculator
Estimate shipping costs
Dropshipping Calculator
Dropshipping profits
Conversion Rate Calculator
Calculate conversion rate
Customer Acquisition Cost Calculator
CAC calculation
Age Calculator
Calculate exact age
Date Calculator
Add/subtract dates
Time Zone Converter
Convert time zones
Work Hours Calculator
Calculate work hours
Time Card Calculator
Timesheet calculations
Business Days Calculator
Count business days
Week Number Calculator
Find week number
Julian Date Converter
Convert Julian dates
Unix Epoch Converter
Convert Unix timestamps
Time Addition Calculator
Add time durations
Meeting Time Finder
Find optimal meeting times across time zones
Age Difference Calculator
Calculate age difference between dates
Birthday Calculator
Calculate birthday information
Zodiac Sign Calculator
Find zodiac sign by date
Chinese Zodiac Calculator
Find Chinese zodiac animal
Moon Phase Calculator
Calculate current moon phase
Sunrise Sunset Calculator
Calculate sunrise and sunset times
Day of Year Calculator
Find day number of year
Leap Year Calculator
Check if year is leap year
Working Days Left Calculator
Calculate working days remaining
Retirement Age Calculator
Calculate retirement age and date