Calculator Directory

Mathematics Scientific Calculators

You can use these calculators to calculate equations, area, angle, arch, Bernoulli and Euler numbers, Fibonacci numbers, binomial, expression, and more..

Statistics Standard Deviation Equations Formulas Calculator - Population
Solving for population standard deviation.

Area Calculator
Take a look at all shapes, enter the dimensions and this tool will calculate the area.

Angle Conversion Table
Convert between angle units.

Arch Calculator
The arch calculator calculates the distance between the focus points (F) and the arch's center (C). This distance is calculated based on the arch's height and width.

Area Conversion Table
Perform conversions between Area units.

Area conversion online.
Metric conversion, British and U.S., Japanese, Chinese, Thai, old French, old Spanish, old Russian, etc.

Area unit converter - Chemistry Online Education
Area unit converter (area unit calculator) allows one to convert between different units of area.

Bernoulli Numbers Generator
Bernoulli Numbers Generator computes nth Bernoulli number for a given integer n. Bernoulli numbers are a sequence Bn of rational numbers defined by the following Taylor expansion.

Binomial Calculator
The calculator above takes the place of the traditional textbook table.

Calculator for General Math & Science on Ohm's Law

Circle Calculator. Find Angles, Areas and Distances for any part of a Circle
Calculate circles.

Combinatorial Calculator
Combinatorial calculator solves combinatorial problems involving selecting M items from N items.

Distance and Length Conversion Table
Perform conversions between Distance and Length units.

Euler Numbers Generator
Euler Numbers Generator computes nth Euler number for a given integer n. Euler numbers are a sequence En of integers defined by the following Taylor expansion

Expression Calculator - Expression Evaluator
Expression Calculator evaluates an expression in given context.

Factorial Calculator
Factorial calculator computes factorial for a given integer. Factorial of a non-negative integer n is the product of all positive integers less than or equal to n

Fibonacci Numbers Generator
Fibonacci Numbers Generator computes nth Fibonacci number for a given integer n. Fibonacci numbers are a sequence Fn of integer number defined by a recurrence relation.

Flow Conversion Table
Perform batch conversions between Flow units.

Flow rate by mass conversion online.
Conversions of flow rate (transfer rate) units based on mass.

Fractions and Percent conversion online.
Dozen, baker's dozen, gross, percent, permille, ppm, fractions, etc.

Gamma Function Calculator
Gamma function calculator computes gamma function of a given number.

Inverse Function Calculator
Inverse function calculator inverts function with respect to a given variable.

LaTeX Online Equation Editor
Type your LaTeX equation in the box above and click Render Equation to see it displayed here.

Length unit converter - Chemistry Online Education
Length unit converter (length unit calculator) allows one to convert between different units of length.

Numbers Conversion Table
Perform batch conversions between Numbers units.

Online Complex Numbers Calculator
Complex Numbers Calculator evaluates expresions with complex numbers and returns complex numbers in rectangular and polar forms.

Online Definite Integral Calculator
Definite Integral Calculator computes definite integral of a function over an interval using numerical integration. Definite integral could be represented as the signed area in the XY-plane bounded by the function graph.

Online Derivative Calculator
Derivative Calculator computes derivative of a function with respect to given variable using analytical differentiation. Derivatives up to 10th order are supported. Derivative calculator also allows to draw graphs of the function and its derivative.

Online Equation Solver
Equation Solver solves a system of equations with respect to a given set of variables. Equation solver finds roots of polynomial equations. It can also compute solutions of equations with exponents, logarithms and trigonometric functions.

Online Expression Simplification
Expression simplifier transforms given expression to a simpler form. This process usually involves expansion, adding terms of the same order and transforming them to the common denominator. Expression simplifier can also simplify expressions with logarithms and exponents.

Online Factoring - Number Factorizer
Number factorizer (a.k.a. interger factorization calculator) computes prime factors of a natural number or an expresssion involving + - * / ^ ! operators that evaluates to a natural number.

Online Factoring Calculator
Factoring calculator transforms a complex expression into a product of simple factors. This factoring calculator can factor an expressions with polynomials involving any number of variables as well as more complex function.

Online Fractions Calculator
Fractions Calculator evaluates an expression with fractions (rational numbers). It allows one to add fractions, subtract fractions, multiply fractions, divide fractions, raise a fraction to a power as well as combine these operators. Numbers and simple expressions could be used as numerator and denominator of the fraction.

Online Graphing Calculator
Graphing calculator (graph plotter tool) draws graphs of the functions.

Online Integral Calculator
Integral Calculator computes an indefinite integral (antiderivative) of a function with respect to a given variable using analytical integration. It also allows to draw graphs of the function and its integral.

Online Limit Calculator
Limit Calculator computes a limit of a function with respect to a variable at a given point. One-sided and two-sided limits are supported. Point at which limit is computed could be specified by a number or by a simple expression e.g. %pi/4. Computing limits at positive (inf), negative (minf) and complex (infinity) infinities is also supported.

Online Matrix Binary Calculator (Multiplication, Addition, Subtraction)
Matrix Binary Calculator allows to multiply, add and subtract matrices.

Online Matrix Calculator
Matrix Calculator computes a number of matrix properties: rank, determinant, trace, transpose matrix, inverse matrix and square matrix.

Online Series Calculator
Series calculator computes sum of a series over the given interval. It is capable of computing sums of finite and infinite sequences.

Online Statistics Calculator: standard deviation, variance, skewness ...
Statistics Calculator allows to compute a number of statistical properties of a sample: mean, median, harmonic mean, geometric mean, minimum, maximum, range, variance, corrected variance, standard deviation, corrected standard deviation, relative standard deviation, mean deviation, median deviation and skewness of a series.

Online Taylor Series Expansion Calculator
Taylor Series Expansion Calculator computes a Taylor series expansion for a function at a point up to a given power.

Polygon Calculator
Calculates the area of a polygon.

Prefix Conversion Calculator
The main purpose of this calculator is for when a figure is given for a unit with one prefix in place, and it is desired to see if another prefix might not be more appropriate.

Prime Numbers Generator and Checker
Prime Numbers Generator and Checker (a.k.a prime number calculator) supports following operations on natural numbers or expressions with + - * / ^ ! operators that evaluate to natural numbers: Check - determines if the given number is prime, Find next - finds the smallest prime number greater than the provided number, Find previous - finds the largest prime number smaller than the given number.

Rectangle Calculator with explanation.
Input two values you know and the value you want to find.

Roman Numerals
Handy Roman numeral converter. Type a number (like 14) or a Roman number (like XIV), and click 'Convert'.

Square Calculator
Use this square calculator to find the side length, diagonal length, perimeter or area of a geometric square. Given any 1 variable you can calculate the other 3 unknowns.

Triangle Calculator
Uses trigonometry to calculate various dimensions of any triangle.

Trigonometry Calculator - Find Angles, Sides, Areas and Trig Formulas for Right Triangles
Calculate triangles.

Trigonometry Calculator - Measure Isosceles Triangle Angles and Sides
Calculate angles.

Convert between area units.

Volume of a cylinder calculator
The following volume of a cylinder calculator will help you find the volume for any cylinder when the radius and the height are given.

Yards to Meters Conversion Calculator
Use the following calculator to convert between yards and meters.

iPhone and iPod calculators

A fully unit-aware, scientific and engineering RPN (reverse polish notation) calculator. Great for anything from basic math in the supermarket to evaluating the ground state energy of a simple harmonic oscillator on your Quantum Mechanics final (if they let you in with an iPhone, of course). TouchRPN knows most basic physical constants and units, as well as household, cooking, and "imperial" units. A built-in tutorial will show you how to use RPN if you're stuck, as well as how to access the advanced features.

powerOne® combines an algebraic and RPN calculator with simple, customizable, spreadsheet-like templates, giving you hundreds to choose from. Create your own, keep a history and share with others.

RPNCalc is a four function calculator with simple trig functions. The calculator uses Reverse Polish Notation, has the ability to store multiple values, and includes functions to modify the order of values in the stack.