Calculators

Calculates the percentage of a number, or what percentage one number is of another.

Calculates the Least Common Multiple (LCM) of two numbers. The LCM is the smallest positive integer that is a multiple of both numbers.

Finds the greatest common factor (GCF) of two numbers.

This calculator determines if a given year is a leap year and lists all leap years within a specified range.

Converts between decimal degrees and degrees-minutes-seconds (DMS) formats.

Performs addition or subtraction on two fractions, displaying the result as a simplified fraction.

Converts numbers between decimal (base-10) and octal (base-8) number systems.

Calculates the arithmetic mean (average) of a set of numbers.

Performs the product of two or more numbers.

Performs the difference between two numbers.