Math & Conversion
Solve percentages, fractions, averages, equations and conversions with free, easy math calculators.
Percentage Calculator
Solve any percentage problem - what is X% of Y and more
Percentage Increase Calculator
Calculate percent increase between two numbers
Percentage Change Calculator
Calculate the percent change and difference between values
Discount Calculator
Calculate the sale price and amount saved
Fraction Calculator
Add, subtract, multiply and divide fractions
Scientific Calculator
A full scientific calculator with trig, logs and more
GPA Calculator
Calculate your grade point average (weighted or unweighted)
Quadratic Formula Calculator
Solve quadratic equations with the quadratic formula
Average Calculator
Calculate the mean, median and mode of numbers
Ratio Calculator
Simplify, scale and solve ratios and proportions
Exponent Calculator
Raise numbers to any power
Square Root Calculator
Find the square root of any number
Standard Deviation Calculator
Calculate standard deviation, variance and mean
Slope Calculator
Find the slope and equation of a line from two points
Distance Calculator
Calculate the distance between two coordinate points
Area Calculator
Calculate the area of common shapes
Grade Calculator
Calculate your class grade and final exam score needed
Unit Converter
Convert length, weight, temperature, volume and more
GCF Calculator
Find the greatest common factor of numbers
LCM Calculator
Find the least common multiple of numbers
Scientific Notation Calculator
Convert numbers to and from scientific notation
Rounding Calculator
Round numbers to any decimal place
Significant Figures Calculator
Count and round to significant figures
Decimal to Fraction Calculator
Convert a decimal to a simplified fraction
Long Division Calculator
Solve long division with step-by-step work
Logarithm Calculator
Calculate log and natural log of any number
Pythagorean Theorem Calculator
Solve for any side of a right triangle
Triangle Calculator
Solve triangle sides, angles and area
Circle Calculator
Calculate area, circumference, radius and diameter
Volume Calculator
Calculate the volume of common 3D shapes
Perimeter Calculator
Calculate the perimeter of common shapes
Factorial Calculator
Calculate the factorial of a number (n!)
Permutation & Combination Calculator
Calculate nPr and nCr
Prime Factorization Calculator
Break a number into its prime factors
Binary Calculator
Convert and do math with binary numbers
Percent Error Calculator
Calculate percent error between values
Z-Score Calculator
Calculate the z-score of a value
Probability Calculator
Calculate the probability of events
Midpoint Calculator
Find the midpoint between two points
Trigonometry Calculator
Calculate sine, cosine, tangent and inverse
kg to Pounds Converter
Convert kilograms to pounds and back
cm to Feet Converter
Convert centimeters to feet and inches
Miles to km Converter
Convert miles to kilometers and back
Celsius to Fahrenheit Converter
Convert temperature between C and F
Feet to Meters Converter
Convert feet to meters and back