Math & Algebra Calculators
Solve percentages, fractions, algebra, statistics, and geometry with focused calculators that show the underlying result.
Percentage Calculator
Solve common percentage problems, including finding a percentage of a value, the percentage one value is of another, and the change between values.
Open Tool →Average Calculator (Mean, Median, Mode)
Calculate the mathematical average (mean), median, mode, and range of any dataset instantly.
Open Tool →Percentage Increase Calculator
Calculate the absolute and relative percentage increase from an initial value to a final value. Works for both positive increases and negative decreases.
Open Tool →Fraction Calculator
Add, subtract, multiply, or divide two fractions and view the simplified result with validation for zero denominators.
Open Tool →Random Number Generator
Generate random integers from a range, roll virtual dice, or use supported lottery number presets with optional duplicate prevention.
Open Tool →Quadratic Equation Solver
Solve ax² + bx + c = 0, calculate the discriminant, and return real or complex roots.
Open Tool →Prime Number Checker
Check whether an integer is prime, list its factors, and find the next prime number.
Open Tool →Ratio Calculator
Simplify a two-number ratio or solve the missing value in a proportion A:B = C:D.
Open Tool →Gpa Calculator
Calculate semester or cumulative GPA from course grades and credit values using a 4.0 grade-point scale.
Open Tool →Grade Calculator
Calculate a weighted course grade from scores, weights, and optional target-grade assumptions.
Open Tool →Number Base Converter
Convert non-negative safe integers between bases 2 and 36 or display decimal, binary, octal, hexadecimal, base32, and numeric base64 forms.
Open Tool →Standard Deviation Calculator
Calculate mean, variance, and standard deviation from a numeric data set using population or sample assumptions.
Open Tool →Permutation Combination Calculator
Calculate permutations and combinations for selecting r items from n distinct items without repetition.
Open Tool →Matrix Calculator
Perform supported matrix operations such as addition, subtraction, multiplication, and other matrix calculations.
Open Tool →Scientific Calculator
Evaluate supported arithmetic, trigonometric, logarithmic, and scientific expressions in the browser.
Open Tool →Midpoint Calculator
Find the midpoint between two points in a number line or coordinate plane.
Open Tool →Perimeter Calculator
Calculate the perimeter or circumference of a square, rectangle, circle, triangle, parallelogram, or trapezoid and convert units.
Open Tool →Volume Calculator
Calculate and analyze your volume calculator with our free tool.
Open Tool →Square Footage Calculator
Calculate area in square feet from room dimensions and supported shapes or measurement units.
Open Tool →Area Calculator
Calculate the exact area of rectangles, triangles, circles, trapezoids, and irregular polygons with square feet, meters, and acreage conversions.
Open Tool →Circumference Calculator
Calculate the circumference, radius, diameter, and area of any circle instantly with high-precision Pi calculations and worked geometry examples.
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