🎉 100% COMPLETE - 51+ Professional Calculators
FacileCalc Calculator Suite
The most comprehensive calculator suite available online. 51+ professional calculators for all your calculation needs.
51+
Calculators
8
Categories
100%
Complete
Free
Always
Standard Calculator
Basic arithmetic operations with memory functions
Percentage Calculator
Calculate percentages, add/remove percentages
Average Calculator
Calculate mean, median, and statistical values
VAT/TVA Calculator
Calculate VAT forward and reverse with precision
Power Calculator
Calculate powers, roots, and exponents
Square Calculator
Calculate squares and analyze number properties
Square Root Calculator
Calculate square roots with precision
Prime Number Checker
Check if numbers are prime and find factors
Equation Solver
Solve linear and quadratic equations step-by-step
Time Calculator
Add and subtract time durations
Time Converter
Convert between time formats and decimal hours
Date Difference
Calculate differences between dates
Work Time Calculator
Calculate work hours and overtime
Chronometer
High-precision stopwatch with lap timing
Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, Rankine
Binary Converter
Convert between binary, decimal, hex, octal
Unit Converter
Convert length, weight, volume, area units
Area Calculator
Calculate area of various shapes
Length Converter
Convert between metric and imperial length units
Trapezoid Calculator
Calculate trapezoid area, perimeter, and properties
Losange Calculator
Calculate diamond/rhombus area, perimeter, and properties
Parallelogram Calculator
Calculate parallelogram area, perimeter, and properties
Thermal Resistance Calculator
Calculate thermal resistance for conduction, convection, and composite materials
Volume Calculator
Calculate volume of 3D shapes
Electrical Calculator
Ohm's Law and electrical power calculations
Triangle Calculator
Calculate triangle properties and solve triangles
Perimeter Calculator
Calculate perimeter of various shapes
Color Code Calculator
Decode resistor color bands
Auto-Entrepreneur Simulator
French freelancer tax calculator with ACRE and versement libératoire
Stock Trading Calculator
Calculate profits, losses, and ROI on stock trades with fees
Currency Converter
Convert between 25+ currencies and cryptocurrencies
Salary Calculator
Calculate gross/net salary with French tax system
Loan Calculator
Calculate loan payments and interest
Interest Calculator
Calculate simple and compound interest
Text Encryption
Encrypt/decrypt text with 5 algorithms (AES, DES, etc.)
Password Generator
Generate secure passwords with custom options
Hash Calculator
Calculate MD5, SHA-1, SHA-256 hashes
Network Calculator
Calculate IP subnets and CIDR notation
Power Converter
Convert between kW, horsepower, CV, and other power units
Speed Converter
Convert between km/h, mph, knots, Mach, and other speed units
Mass Converter
Convert between kg, pounds, ounces, stones, and other mass units
Volume Converter
Convert between liters, gallons, cups, milliliters, and other volume units
Timestamp Converter
Convert between Unix timestamps and human-readable dates
Hexadecimal Operations
Perform hex arithmetic, bitwise operations, and base conversions
Leap Year Checker
Check if a year is a leap year or find leap years in a range
Text Space Removal
Remove unwanted spaces and whitespace from text with various options
Duration Calculator
Multiply, divide, add, subtract durations with format conversion
Electricity Tariff Calculator
Compare electricity tariffs and find the best energy deals
Markdown Converter
Convert between Markdown and HTML formats
Character Counter
Count characters, words, and analyze text
Fraction Calculator
Calculate with fractions and mixed numbers
Why Choose FacileCalc?
Professional-grade features designed for accuracy and ease of use
Precision Math
All calculations use decimal.js library to avoid floating-point precision errors, ensuring accurate results for financial and scientific calculations.
Accessibility
Full keyboard navigation, screen reader support, high contrast design, and WCAG 2.1 compliance for users with disabilities.
History & Export
Save calculation history locally, export results to CSV or JSON formats, and maintain calculation records for future reference.
Mobile Friendly
Responsive design optimized for all device sizes, touch-friendly interface, and progressive web app capabilities for offline use.