The Greatest Common Factor (GCF) calculator is a powerful tool for finding the greatest common factor of two or more numbers.

The calculator converts Julian calendar date to Gregorian calendar date taking in account the calendar era.

The calculator converts Gregorian date to the 365 day calendar date. The calendar has 12 months with 30 days each and 1 month with 5 days.

The calculator shows the Hindu mean lunisolar calendar date for an input Gregorian date

The calculator shows the Hindu mean solar calendar date for an input Gregorian date

The calculator converts a Gregorian date to a Julian date

The calculator gives number of days since the Kali Yuga beginning.

Auxiliary calculator for other date conversion calculators. By Calendrical calculations of Dershowitz and Reingold.

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Sandbox for experimenting with the Handlebars templating engine. Allows you to set a text template, JSON object and display the result processed by the handlebars js library

The Hartley Information Calculator determines the amount of information contained in a message with length n using Hartley's formula.

This calculator calculates the heat index or apparent temperature.

The calculator converts dates from Hebrew calendar to Gregorian and vice versa.

This calculator computes height expressed in the old Russian measure system units: arshins and vershoks

This online calculator calculates the Herfindahl-Hirschman Index (HHI), which is used to estimate the concentration of production in a product market.

This calculator calculates the area of a triangle using Heron's formula. This formula gives the area of a triangle from the lengths of all three sides. The formula can be found below the calculator.

This calculator uses Hill cipher to encrypt/decrypt a block of text.

The calculator converts the Hindu mean lunisolar calendar date to the Gregorian date.

The calculator converts the Hindu mean solar calendar date to the Gregorian date.