Math Calculators - Free Online Mathematical Tools

Math Calculators

Solve complex math problems, equations, and conversions instantly.

Scientific Calculator

Advanced calculator with trigonometry, logarithms, and exponents.

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Percentage Calculator

Calculate percentage increases, decreases, and common ratios for everyday math.

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Fraction Calculator

Add, subtract, multiply, and divide fractions with ease. Results are simplified instantly.

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Triangle Calculator

Calculate angles, area, perimeter, and classify a triangle given its three sides.

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Standard Deviation Calculator

Calculate standard deviation, variance, and mean for a set of numbers.

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Volume Calculator

Calculate the volume of common 3D shapes like cubes, spheres, cylinders, and cones.

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Random Number Generator

Generate random numbers within a custom range with advanced options like no duplicates.

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Number Sequence Calculator

Generate terms and find the sum of arithmetic and geometric sequences.

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Exponent Calculator

Calculate the result of a base raised to a power (exponent), including negative and fractional exponents.

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Percent Error Calculator

Calculate the percentage error between an observed and a true value for scientific accuracy.

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Binary Calculator

Perform binary arithmetic (add, subtract, multiply, divide) and convert between binary and decimal.

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Hex Calculator

Perform arithmetic and conversions between Hexadecimal, Decimal, and Binary number systems.

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Quadratic Formula Calculator

Solve quadratic equations (ax² + bx + c = 0) and find the roots, including complex solutions.

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Half-Life Calculator

Solve for half-life, initial quantity, remaining quantity, or time elapsed in exponential decay.

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Slope Calculator

Calculate the slope, distance, and angle of a line from two points in the Cartesian plane.

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Log Calculator

Calculate logarithms for any base, including natural (ln) and common (log₁₀) logarithms.

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Sample Size Calculator

Determine the number of respondents needed for a survey with a given confidence level and margin of error.

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Area Calculator

Calculate the area of common 2D shapes like rectangles, squares, triangles, and circles.

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Probability Calculator

Calculate the probability of single and multiple events, with results as fractions, decimals, and percentages.

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Statistics Calculator

Perform a full descriptive statistical analysis on a set of data (mean, median, mode, SD, etc.).

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Permutation & Combination

Calculate permutations (nPr) and combinations (nCr) for a given set and subset.

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Mean, Median, Mode, Range

Calculate the core measures of central tendency and spread for a data set.

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Z-score Calculator

Calculate the Z-score of a data point given the mean and standard deviation of the population.

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Confidence Interval

Calculate the confidence interval for a sample mean given the standard deviation and sample size.

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Distance Calculator

Calculate the Euclidean distance between two points in 2D or 3D coordinate space.

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Ratio Calculator

Simplify ratios, find missing values in proportions, and calculate aspect ratios for images or video.

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Circle Calculator

Calculate area, circumference, radius, and diameter of a circle from any single known value.

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Surface Area

Calculate the total surface area of 3D shapes like spheres, cylinders, and prisms with visual diagrams.

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Right Triangle

Solve a right-angled triangle by entering any two values like sides or angles.

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Pythagorean Theorem

Calculate the length of any side of a right triangle using the formula a² + b² = c².

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Root Calculator

Calculate the nth root (square, cube, etc.) of any number with high-quality estimations.

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Least Common Multiple

Find the LCM of two or more numbers instantly with step-by-step logic.

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Factor Calculator

Find all factors, factor pairs, and prime factorization of any positive integer.

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Greatest Common Factor

Find the GCF (GCD) of two or more numbers instantly with a detailed mathematical analysis.

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Rounding Calculator

Round numbers to the nearest decimal place, whole number, or significant figure with various modes.

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Matrix Calculator

Perform matrix addition, subtraction, and multiplication with custom dimensions.

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Big Number Calculator

Perform arithmetic operations on extremely large integers without losing numerical precision.

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Scientific Notation Calculator

Perform arithmetic and conversions using scientific notation (e.g., 1.2 x 10^5).

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Prime Factorization Calculator

Break down any positive integer into its unique prime factor components with exponential notation.

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Common Factor Calculator

Identify all common factors for a set of numbers and highlight the Greatest Common Factor (GCF).

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Long Division Calculator

Calculate the quotient and remainder of a division with a visual step-by-step manual process.

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Basic Calculator

A clean, modern, and easy-to-use digital calculator for everyday arithmetic tasks.

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Average Calculator

Calculate the simple arithmetic mean or a weighted average for any set of numbers.

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P-value Calculator

Calculate the P-value from a Z-score and significance level for hypothesis testing.

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