Calculator & Converter

Pi Calculator is a user-friendly online tool designed to calculate the value of Pi (π) to a specified number of decimal places. Simply enter the number of start decimal places and the number of digits you need, and the calculator will generate the value of Pi (π) instantly.

Mathematical Formula Editor is an online mathematical expression editor that provides an easy-to-use interface for editing math formulas.

Geo Coordinate Format Converter supports the conversion of latitude and longitude coordinates between Degrees Minutes Seconds (DMS) format, Degrees Minutes (DM) format, and Decimal Degrees (DD) format, facilitating their direct use in mapping services like Google Maps.

Moon Illumination Calculator is a geographic tool designed to provide accurate and detailed information about the moon's phases for any given date and time.

Moon Times Calculator is a geographic tool that can calculate the moon's rise and set times for a given date, latitude/longitude. The calculator provides detailed information about the moon's rise and set times and accounts for geographical latitude and longitude, as well as local time zones, ensuring highly accurate predictions.

Moon Position Calculator can calculate moon position (altitude and azimuth, etc.) for a given date, time and latitude/longitude.

Sunlight Times Calculator can calculate sun times for a given date, latitude/longitude, and the observer's height (in meters) relative to the horizon. It is an indispensable tool for anyone interested in understanding or predicting the exact times of sunrise and sunset for any location on Earth.

Sun Position Calculator can calculates sun position (Solar Elevation Angle and Solar Azimuth Angle, etc.) for a given date and latitude/longitude.

Antipode Calculator: Click any city name or location on the map or entering the latitude and longitude coordinates, you can easily find its antipode (the opposite side of the world).

Location Coordinates Picker is a latitude and longitude coordinates picker that allows you to quickly pinpoint geographic locations by selecting precise latitude and longitude coordinates.

Logarithm Calculator is a online math calculator designed to compute logarithms for any given number with customizable bases. This calculator not only handles common logarithms (base 10) but also allows you to specify their own base, making it ideal for a wide range of applications in mathematics, science, and engineering.

Factorial Calculator is a free math calculator to compute the factorial of a given non-negative integer efficiently.