All online calculators

  • Count the number of words

    The calculator counts word number in a given text. It can be used for rough calculation of translation cost. Can be used for word number calculation in software resources.

  • Counting pipes from the end face

    The approach to the calculation of the number of nested circles of smaller radius at a known length of the describing circle of a larger radius. Created by user request

  • Course angle and the distance between the two points on loxodrome (rhumb line).

    Calculation of a distance on loxodrome (rhumb line) and course angle (azimuth) between two points with a given geographical coordinates.

  • Course angles and distance between the two point on the orthodrome(great circle)

    Calculates the distance between two point of the Earth specified geodesic (geographical) coordinates along the shortest path - the great circle (orthodrome). Calculates the initial and final course angles and azimuth at intermediate points between the two given.

  • Cramer's Rule

    This online calculator solves system of linear equations using Cramer's rule and shows detailed steps of the solution

  • Cryptarithmetic puzzle solver

    This calculator is a solver of cryptarithmetic puzzles. Cryptarithmetic puzzle is a number puzzle in which a group of arithmetical operations has some or all of its digits replaced by letters or symbols, and where the original digits must be found. In such a puzzle, each letter represents a unique digit.

  • Cuba World Development Indicators 2016 - in memory of Fidel Castro

    This calculator provides access to 752 world development indicators for Cuba imported from World Bank data at 2016. In memory of Fidel Castro.

  • Cube
  • Cubic equation

    Solution of cubic equation using Vieta's formulae. Created by user request

  • Cylinder
  • Cylindrical tank volume

    Cylindrical tank volume

  • Cylindrical Tank Volume Calculator

    Use this calculator to determine your cylindrical tank volume in cubic inches and gallons even if one or both ends are rounded. Especially useful if you've cut the tank in length. If you've got a flat end just leave it blank or enter 0.

  • Daily

    Calculator of the daily calorie rate, taking into account the level of physical activity.

  • Daily Needs Calorie Rate
  • Date and interval

    Adds and subtracts a specified time interval to the specified date

  • Date and number of working days (for Russia)

    Calculator calculates the date of the initial date and the number of working days. Taking into account weekends, holidays and weekend shifts at work days, according to the published decrees of the government of the Russian Federation. Created by user's request.

  • Date by the Julian Day Number

    Displays Gregorian calendar date corresponding to Julian Day Number

  • Date plus days

    This online calculator adds or subtracts given number of days to or from the given date.

  • Date to timestamp converter

    This calculator converts date to epoch timestamp in milliseconds, that is, milliseconds since standard epoch of 1/1/1970, as used, for example, in Javascript.

  • Day of week by date

    This online calculator outputs day of week for given date