Free online calculators & tools

Math & Science Calculators

Solve arithmetic, fractions, ratios, statistics, grades, geometry, and science problems.

9 tools · no registration required

Calculate the average, sum, count, median, mode, range, minimum, maximum, and weighted average for a list of numbers.

Calculate density, mass, or volume using the equation ρ = m/V. Supports multiple units and includes common material densities.

Find exact and decimal distances between two points in 2D or 3D with coordinate differences, midpoint, and step-by-step formulas.

Add, subtract, multiply, and divide fractions. Simplify fractions, convert decimals, and work with mixed numbers easily.

Calculate your grade based on your assignments and weights. Perfect for calculating your grade based on your assignments and weights.

Find the least common multiple of two or more integers with exact BigInt results, GCF, prime factorization, formulas, and calculation steps.

Evaluate mathematical expressions with this free online tool. Perfect for solving complex equations, calculating values, and more.

Calculate the missing side of a right triangle using the Pythagorean theorem (a² + b² = c²). Free online calculator with step-by-step solutions.

Solve A:B = C:D, find missing ratio values, simplify equivalent ratios, scale proportions, calculate percentages, and view ratio diagrams.

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