Math & Utility Calculators
Precision calculations, algebraic solvers, statistical analytics, and everyday utilities.
Mathematics & Statistics Solvers
Percentage Calculator
Calculate Percentages & Discounts
Open Calculator →Basic Calculator
Basic arithmetic calculator
Open Calculator →Average Calculator
Calculate the average of numbers
Open Calculator →Fraction Calculator
Add, subtract, multiply, and divide fractions and mixed numbers
Open Calculator →GPA Calculator
Calculate high school or college Grade Point Average
Open Calculator →Logarithm Calculator
Calculate natural (ln), binary (log2), and common (log10) logs
Open Calculator →Matrix Calculator
Matrix addition, multiplication, determinants, and inverses
Open Calculator →Probability Calculator
Calculate single, independent, dependent & conditional probabilities
Open Calculator →Quadratic Formula Calculator
Solve quadratic equations ax² + bx + c = 0 with step-by-step roots
Open Calculator →Scientific Calculator
Advanced scientific calculator with trigonometry, exponents & logs
Open Calculator →Scientific Notation Calculator
Convert between decimal, scientific, and engineering notation
Open Calculator →Slope Calculator
Find slope, line equation (y=mx+b), angle & distance between points
Open Calculator →Standard Deviation Calculator
Calculate sample and population standard deviation & variance
Open Calculator →Statistics Calculator
Calculate mean, median, mode, range, variance & quartiles
Open Calculator →Triangle Calculator
Solve Triangle Sides & Angles
Open Calculator →Distance Calculator
Calculate Distance Between Points
Open Calculator →Time Calculator
Add & Subtract Time / Durations
Open Calculator →Random Number Generator
Generate Random Numbers
Open Calculator →Construction, Science & Everyday Utilities
Age Calculator
Calculate Exact Age in Years/Months/Days
Open Calculator →Password Generator
Generate Secure Strong Passwords
Open Calculator →Length Converter
Convert Meters, Feet, Inches & Miles
Open Calculator →Weight Converter
Convert Kilograms, Pounds, Ounces & Grams
Open Calculator →Temperature Converter
Convert Celsius, Fahrenheit & Kelvin
Open Calculator →Volume Converter
Convert Liters, Gallons, Milliliters & Cups
Open Calculator →Area Converter
Convert Sq Meters, Sq Feet, Acres & Hectares
Open Calculator →Tip Calculator
Calculate tip and split the bill among people
Open Calculator →Bra Size Calculator
Find your accurate bra size with snug and bust measurements
Open Calculator →BTU Calculator
Calculate heating and cooling BTU requirements for rooms
Open Calculator →Concrete Calculator
Calculate concrete volume and bags for slabs, footings & columns
Open Calculator →Date Difference Calculator
Calculate exact days, months, and years between two dates
Open Calculator →Dew Point Calculator
Calculate dew point temperature and relative humidity comfort
Open Calculator →Fuel Cost Calculator
Calculate trip fuel cost, mileage, and consumption
Open Calculator →Gravel Calculator
Estimate gravel, stone, and aggregate tonnage for landscaping
Open Calculator →Heat Index Calculator
Calculate "feels like" temperature from heat and humidity
Open Calculator →Horsepower Calculator
Calculate engine horsepower from torque and RPM or ET
Open Calculator →IP Subnet Calculator
IPv4 subnetting, CIDR prefix, netmask, and host ranges
Open Calculator →Love Calculator
Fun name compatibility and relationship affinity tester
Open Calculator →Mulch Calculator
Estimate mulch volume and bags for garden beds and landscaping
Open Calculator →Ohm's Law Calculator
Calculate voltage, current, resistance, and electrical power
Open Calculator →Resistor Color Code Calculator
Decode 4-band and 5-band resistor color codes to resistance values
Open Calculator →Roofing Calculator
Calculate roof squares, pitch, area, and shingle bundles needed
Open Calculator →Square Footage Calculator
Calculate square footage and area for rooms, flooring, and projects
Open Calculator →Tile Calculator
Calculate tiles needed for floors, walls, backsplashes and waste factor
Open Calculator →Wind Chill Calculator
Calculate wind chill temperature and frostbite risk from wind speed
Open Calculator →