Math Calculators

Our math calculators are interactive and unique. These calculators are best used to check your work, or to compute a complicated problem. Remember that math calculators are a problem-solving tool, and should not replace conventional math skills. Choose one of the calculators below to get started.

Online Free Calculator for Arithmetic Operations

Description:
This calculator allows you to perform simple arithmetic operations.

Online Circle Area Calculator

Description:
Our circle solver lets you enter the area, diameter or circumference of a circle and then solves for the other two. It is three calculators in one.

Circumference Calculator

Description:
Find the circumference of a circle by entering its radius.

Random Number Generator

Description:
Generate a random number between one and a number of your choice instantly.

Official Random Number Generator

Description:
Generate an instant random number between two numbers of your choice.

Length Converter

Description:
Easily convert between the seven most popular length units- centimeters, meters, kilometers, miles, inches, feet and yards.

Loan Payment

Description:
Compute your monthly loan payment after entering the principal, interest rate and number of years.

Math Functions Grapher

Description:
This powerful tool is used for graphing math functions such as sine, cosine, and tangent.

Description:
Find the roots of a quadratic equation with this handy calculator.

Roman Numeral Converter

Description:
Convert a whole number into a Roman Numeral with this handy tool.

Online Scientific Calculator

Description:
This comprehensive suite of calculators includes a scientific calculator. It also has is a molecular weight calculator and the tables with various physical and chemical constants.

Square Roots Calculator

Description:
Find the square root of a number you enter.

Temperature Converter

Description:
Convert between Fahrenheit and Centigrade temperatures.

Triangular Numbers

Description:
Find any triangular number interactively.

Compound Interest Calculator

Description:
Calculating future value with compound interest.

Fraction Calculator

Description:
Use this fraction calculator for adding, subtracting, multiplying and dividing fractions. Answers are fractions in lowest terms or mixed numbers in reduced form.