All online calculators

  • Acceleration of gravity

    Acceleration of gravity calculation on the surface of a planet. It's possible to calculate the acceleration above the surface by setting the sea level. But it won't be possible under thesurface - this is a wrong formula.

  • Age

    Calculate your age with minute precision

  • Altitude of a triangle

    This online calculator computes the length of a altitude of a triangle, given the lengths of edges of a triangle.

  • Altitude Pressure

    This calculator uses barometric formula to find out the pressure at the given altitude

  • Angular size, linear size and distance

    These calculators computes value of angular size or linear size or distance from the other two's

Angle bisector of a triangle

This online calculator computes length of angle bisector given the lengths of triangle edges

Angle bisector of a triangle Creative Commons Attribution/Share-Alike License 3.0 (Unported)

Ball radius calculated by volume

Ball radius calculated by volumeCreative Commons Attribution/Share-Alike License 3.0 (Unported)
  • Area of a quadrilateral

    This article lists several calculators for area of a quadrilateral

  • Area of triangle by coordinates

    This calculator determines area of triangle, using its vertex coordinates in cartesian coordinate system

  • Arithmetic progression

    This online calculator computes last nth term of arithmetic progression and sum of the members

  • Azimuth and solar elevation angle

    Calculation of azimuth and solar elevation angle by given the coordinates and time of observation. It's possible to input coordinates manually or by selecting from the directory of cities.

  • Bank card number validation

    The calculator checks a bank card number using Luhn algorithm, it also determines the card issuer according to Issuers handbook.

  • Barometric leveling
  • Base 64 encoding and decoding

    The calculators encode string to base64 string and decode back to original string. Special characters (+/) , generally produced by base64 algorithm, can be replaced by the data provided in additional parameter.

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