Math & Calculators

Standard digital four-function calculator

Advanced scientific math calculator with trigonometry (sin, cos, tan), logarithms, powers, roots, and factorial.

Solve "X is what % of Y", percentage increases, decreases, and percentage differences.

Add, subtract, multiply, and divide fractions with mixed numbers and step-by-step simplification.

Simplify ratios (A:B), find equivalent ratios, scale ratios up or down, and divide quantities in given ratios.

Solve direct and inverse proportions (A/B = C/D) to find missing variable X.

Calculate arithmetic average, sum, count, minimum, and maximum for any series of numbers.

Calculate arithmetic mean, geometric mean, and harmonic mean with step-by-step statistical formulas.

Find the statistical middle value (median) of sorted odd or even numerical datasets.

Identify the most frequently occurring value(s) in a dataset with unimodal, bimodal, and multimodal detection.

Calculate sample standard deviation, population standard deviation, variance, and margin of error.

Calculate single event probability, independent/dependent events, union, intersection, and odds.

Calculate number of ordered arrangements (permutations) of r elements from a set of n items.

Calculate number of unordered selections (combinations) of r items chosen from n total items.

Generate cryptographically random integers, decimals, multiple non-repeating numbers in customizable ranges.

Check whether any integer is a prime number and find the nearest preceding and succeeding primes.

Break down any integer into its unique prime factor tree and exponential prime decomposition.

Find the Least Common Multiple (LCM / LCD) of two, three, or more integers with step-by-step factorization.

Calculate the Greatest Common Divisor (GCD) / Highest Common Factor (HCF) using Euclidean algorithm.

Calculate exact square roots, cube roots, nth roots, and simplified radical expressions.

Calculate powers (x^y), negative exponents, fractional powers, and large scientific notations.

Calculate natural log (ln), common log base 10 (log10), binary log (log2), and custom base logarithms.

Solve ax² + bx + c = 0 quadratic equations to find real and complex roots, discriminant, and vertex coordinates.

Calculate surface area of circles, rectangles, triangles, trapezoids, ellipses, and regular polygons.

Calculate volume and total surface area of spheres, cylinders, cones, cubes, rectangular prisms, and pyramids.

Calculate side lengths, angles, area, perimeter, and hypotenuse of right and oblique triangles.

Enter radius, diameter, area, or circumference to instantly solve all remaining circle geometric parameters.

Calculate rectangle area, perimeter, diagonal length, and aspect ratio from length and width.

Calculate Cartesian Euclidean distance, slope, and midpoint coordinates between two points (x1, y1) and (x2, y2).

Calculate speed, distance traveled, or travel duration using classic physics motion kinematics.