682 calculators covering algebra, geometry, trigonometry, statistics, and more
Calculate percentages easily. Find what percent one number is of another, or find a percentage of a number.
Calculate the logarithm of a number with any base
Convert any number to scientific notation (coefficient Ć 10^exponent)
Calculate base raised to an exponent with step-by-step breakdown
Calculate hypotenuse or missing side using aĀ² + bĀ² = cĀ²
Calculate the square root of any number. Get the exact value and handle negative inputs with error handling.
Calculate the circumference, radius, and area of a circle from its diameter.
Calculate the slope, y-intercept, and line equation between two points on a coordinate plane.
Round any number to a specified number of significant figures.
Calculate percentage increase between two numbers. Find how much a value has grown and the percentage change.
Calculate the absolute value of any real number. |x| = distance from zero on the number line.
Calculate the inverse tangent (arctan) of a value in degrees or radians.
Calculate the area of rectangles, triangles, and circles using standard geometric formulas.
Calculate the arithmetic mean (average) of up to 8 numbers.
Convert numbers between any two bases from 2 to 36 (binary, octal, decimal, hex, and more).
Perform addition, subtraction, multiplication, and division on binary numbers.
Calculate the cosine of an angle in degrees or radians.
Calculate the cube root of any real number. Supports negative inputs.
Calculate the volume of a cylinder using V = ĻrĀ²h.
Convert a decimal number to its simplest fractional form.
Calculate the Euclidean distance between two points in 2D space.
Calculate the factorial of a non-negative integer n. n! = n Ć (nā1) Ć ... Ć 1.
Add, subtract, multiply, and divide fractions with step-by-step simplification.
Calculate the Greatest Common Factor (GCF) of two or more numbers, also known as the greatest common divisor (GCD).
Calculate the Least Common Multiple (LCM) of up to 4 numbers using the GCD method.
Solve linear equations in the form ax + b = c. Find x step by step.
Multiply two 2x2 matrices. Compute the product matrix entry by entry.
Calculate the mean (average), median, and mode of a set of numbers.
Calculate the midpoint between two points in 2D space.
Find the prime factorization of any positive integer up to 10 million.
Generate random integers or decimals within a specified range.
Simplify ratios, compare ratios, and find missing values in proportions.
Calculate the volume of a sphere using V = 4/3 Ļ rĀ³.
Calculate the population and sample standard deviation of a set of numbers.
Calculate the surface area of cubes, spheres, and cylinders.
Calculate the tangent of an angle in degrees or radians.
Calculate triangle area using base & height (A = Ā½bh) or Heron's formula with three sides.
Calculate volume for cubes, cylinders, spheres, cones, and rectangular prisms.
Calculate the z-score (standardized score) using z = (x - Ī¼) / Ļ. Find how many standard deviations a value is from the mean.
Calculate combinations (nCr) and permutations (nPr) for choosing and ordering items.
Calculate the area of an annulus (ring) using A = pi(RĀ² - rĀ²).
Calculate the area of an ellipse using A = Ļab, where a and b are the semi-major and semi-minor axes.
Calculate area, side length, and perimeter of a regular hexagon.
Calculate the area of a kite using A = dādā/2, where dā and dā are the diagonals.
Calculate area, side length, and perimeter of a regular octagon.
Calculate the area of a parallelogram using A = bh.
Calculate the area of a regular polygon using A = (n x sĀ²) / (4 x tan(pi/n)).
Calculate the area of a rhombus using A = dādā/2, where dā and dā are the diagonals.
Calculate the area of a circular sector using A = (theta / 360) x pirĀ².
Calculate the area of a trapezoid using A = (a + b)h / 2.
Calculate the length of a circular arc using s = r * theta (radians) or s = (theta / 360) * 2pir.
Calculate the central angle of a circle given arc length and radius: theta = s / r.
Calculate the chord length of a circle using c = 2r sin(theta/2).
Calculate the tangent length from an external point to a circle using t = sqrt(dĀ² - rĀ²).
Calculate the surface area of a cone using SA = pirĀ² + pirl.
Calculate the volume of a cone using V = 1/3pirĀ²h.
Calculate volume, surface area, and space diagonal of a cube.
Calculate the volume of a conical frustum using V = 1/3pih(RĀ² + Rr + rĀ²).
Calculate volume and surface area of a hemisphere.
Calculate the inscribed angle given the central angle subtending the same arc.
Calculate the volume of any prism using V = Bh, where B is the base area.
Calculate the volume of a pyramid using V = 1/3Bh, where B is the base area.
Solve quadratic equations using the quadratic formula x = (-b Ā± ā(bĀ² - 4ac)) / 2a
Calculate the diagonal of a rectangle using d = sqrt(lĀ² + wĀ²).
Calculate volume and surface area of a rectangular prism (cuboid).
Calculate slant height, volume, and surface area of a right circular cone.
Convert between Roman numerals and Arabic numbers
Round a number to a specified number of decimal places
Calculate the area of a circular segment using A = rĀ²/2 (theta - sin(theta)).
Calculate the slant height of a cone or pyramid using l = sqrt(hĀ² + rĀ²).
Calculate volume and surface area of a sphere.
Calculate the volume of a torus (donut shape) using V = 2piĀ²RrĀ².
Calculate volume and surface area of a triangular prism.
Solve absolute value equations of the form |ax + b| = c
Convert between decimal, binary, hexadecimal, and octal number systems
Calculate cosine (cos) and inverse cosine (arccos) of an angle
Calculate cotangent (cot) and inverse cotangent (arccot) of an angle
Calculate cosecant (csc) and inverse cosecant (arccsc) of an angle
Solve direct variation problems using y = kx ā find k from known values or find y from k and x
Calculate sin(2Īø), cos(2Īø), and tan(2Īø) with identity forms shown
Front-end estimation by rounding to the highest place value
Evaluate a polynomial function f(x) at a given x ā supports linear, quadratic, and cubic functions
Solve linear inequalities of the form ax + b <op> 0
Solve inverse variation problems using y = k/x ā find k from known values or find y from k and x
Solve triangles using the law of cosines: cĀ² = aĀ² + bĀ² - 2abĀ·cos(C)
Solve triangles using the law of sines: a/sin(A) = b/sin(B) = c/sin(C)
Compute the remainder of a divided by b
Round a number to the nearest arbitrary value
Calculate the percentage increase or decrease between two values
Calculate the percentage difference between two numbers
Evaluate a polynomial aā + aāx + aāxĀ² + aāxĀ³ + ... at a given x value
Verify sinĀ²Īø + cosĀ²Īø = 1 and explore related Pythagorean identities
Solve the quadratic equation axĀ² + bx + c = 0 with step-by-step discriminant and roots
Convert a number to and from scientific notation
Calculate secant (sec) and inverse secant (arcsec) of an angle
Round a number to a specified number of significant figures
Combine like terms: ax^n + bx^n = (a+b)x^n
Calculate sine (sin) and inverse sine (arcsin) of an angle
Solve a 2x2 system of linear equations: aāx + bāy = cā, aāx + bāy = cā
Calculate tangent (tan) and inverse tangent (arctan) of an angle