# Online Calculators & Conversion Tools

## Free Calculators and Math Tools

Scientific Calculator - 16 Function

This 16 function scientific calculator is great for general math, algebra, trigonometry, calculus, engineering, and more. It includes trig functions and logariths and displays functions in degrees, radians, and even gradients!

This amazing tool will factor any quadratic equation with real number solutions. It will also solve for both values of x! Great for double checking homework answers or quick calculations.

Area Calculator

This simple but handy tool will quickly calculate the area of any square, rectangle, triangle, circle, or sphere.

Area / Volume Generator - (Circles, Cylinders)

Area/Volume Generator (Circles, Cylinders) Find the area or circumference of a circle, the volume of a cylinder, or the area of a rectangle in seconds with this slick calculator. In addition to the answer, it also gives all the steps needed to solve the equation!

Note that to find the volume of a cylinder, you must enter a radius measurement in the first text box. Radius is half the diameter.

GCF / LCM Calculator

Find the greatest common factor and least common multiple quickly with this calculator. Enter up to three numbers.

Fraction Calculator

This calculator will add, subtract, multiply, or divide two simple fractions. It can also give the result in reduced (or lowest) terms.

Pythagorean Theorem Calculator

Use this simple tool to apply one of geometry's most useful formulas, the pythagorean thoerem.  Enter the sides of a right triangle (A and B) and this tool will calculate the hypotenuse (side C).

Units of Length Converter

Convert to and from centimeters, inches, feet, yards, meters, chains, kilometers, and miles with this great little length conversion tool.

Units of Area Converter

Convert to and from square meters, square inches, square yards, square rods, square chains, roods, acres, and square miles in this area conversion tool.

Units of Volume / Capacity Converter

Convert to and from cubic inches, cubic feet, cubic yards, US fluid ounces, US liquid quarts, US gallons, US bushels, and liters in this area volume/capacity conversion tool.