Scientific Calculator

Full trig, log, memory

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Percentage Calculator

6 percentage scenarios

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Volume Calculator

Volume of 3D shapes

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Random Number Generator

Numbers, dice, lottery

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Fraction Calculator

Add, subtract, simplify

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Triangle Calculator

SSS, SAS, ASA & more

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Standard Deviation Calculator

Population & sample SD

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Number Sequence Calculator

Arithmetic & geometric

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Exponent Calculator

Powers, roots & scientific notation

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Hex Calculator

Hex, binary, octal & bitwise

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Quadratic Formula Calculator

Solve ax²+bx+c=0

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Log Calculator

log₁₀, ln, custom base

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Sample Size Calculator

Survey sample size & margin of error

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Statistics Calculator

Mean, median, mode, SD

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Permutation and Combination Calculator

P(n,r) and C(n,r)

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Percent Error Calculator

Calculate percent error between experimental and theoretical values

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Binary Calculator

Convert between binary, decimal, hex, and octal, plus binary arithmetic

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Half-Life Calculator

Calculate radioactive decay and remaining quantity over time

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Slope Calculator

Find slope, distance, and line equation from two points

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Area Calculator

Calculate area of square, rectangle, circle, triangle, and more

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Probability Calculator

Calculate probability of single and combined events

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Mean, Median, Mode, Range Calculator

Calculate mean, median, mode, range, and standard deviation

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Z-score Calculator

Calculate Z-score and percentile using the normal distribution

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Ratio Calculator

Simplify ratios and solve for missing values

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Circle Calculator

Find radius, diameter, circumference, and area of a circle

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Pythagorean Theorem Calculator

Find a missing side of a right triangle

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Root Calculator

Calculate square root, cube root, or nth root of a number

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Greatest Common Factor Calculator

Find the GCF and LCM of two or more numbers

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Rounding Calculator

Round numbers to decimal places, significant figures, or nearest value

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Scientific Notation Calculator

Convert numbers to and from scientific notation

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Prime Factorization Calculator

Find the prime factors and factor pairs of a number

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Basic Calculator

A simple on-screen calculator for everyday math

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Average Calculator

Calculate simple average and weighted average from a list of numbers

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Confidence Interval Calculator

Calculate a confidence interval for a sample mean

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Distance Calculator

Calculate distance between two points in 2D or 3D space

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Surface Area Calculator

Calculate surface area of cubes, spheres, cylinders, and cones

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Right Triangle Calculator

Find hypotenuse, angles, area, and perimeter of a right triangle

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Least Common Multiple Calculator

Find the LCM and GCF of two or more numbers

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Factor Calculator

Find all factors, factor pairs, and check if a number is prime

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Matrix Calculator

Add, subtract, and multiply matrices, with determinant

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Big Number Calculator

Add, subtract, and multiply extremely large numbers

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Common Factor Calculator

Find all common factors and the GCF of multiple numbers

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Long Division Calculator

See step-by-step long division with quotient and remainder

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P-value Calculator

Calculate p-value from a Z-score for hypothesis testing

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