Math Calculators

Find the area of a space by entering the length and width. Area can be found by multiplying length times width.

Compare fractions with different denominators using the fraction comparison calculator. The calculator shows all of the work so you can see all of the steps.

Convert a decimal value to a fraction using the decimal to fraction calculator. The calculator shows all of the work so you can see the steps.

A list of equivalent fractions for common fractions. For example, see that 3/4 is the equivalent of 6/8 and 12/16.

Add, subtract, multiply, and divide fractions using the fractions calculator. The calculator shows all of the steps so you can show your work.

See the decimal equivalents for common fractions in a simple chart.

See percent equivalents for common fractions in a simple chart.

Convert a fraction to a decimal using the fraction to decimal calculator. The calculator shows all of the steps so you can show your work. Learn 2 methods for converting a fraction to a decimal.

Convert fractions to percentages using the fraction to percent calculator. The calculator shows the work so you can see the steps.

Find the greatest common factor and all factors for a set of numbers. The calculator shows the steps to find the greatest common factor so you can show your work.

Convert inch fractions to decimal and decimal inches to fractions. Convert inches and inch fractions to millimeters and centimeters. Convert inches and centimeters to feet.

Find the greatest common denominator for a set of numbers using the common denominator calculator. The calculator shows the work so you can see the all of the steps.

Calculate the perimeter of many different polygons and shapes, such as a square, rectangle, trapezoid, parallelogram, triangle, or circle.

Find the prime factors of a number using the prime factor calculator. The calculator will also indicate if the number itself is a prime factor.

Find the ratio of two numbers, reduce a ratio, scale numbers, evaluate if 2 sets of numbers are equally proportional, or solve for the missing value.

Reduce a fraction using our reduce fractions calculator. The calculator shows all of the steps so you can show your work.

Solve for x in an equation with a fraction using our solve unknown numerator or denominator calculator. The calculator shows all of the steps so you can show your work.

Find the surface area of an object, including a cube, rectangular prism, cone, cylinder, and capsule.

Calculate volume of common three-dimensional shapes, such as a cube, prism, cone, cylinder, pyramid, or capsule, and see formulas. Learn about finding the volume of an irregular shape.