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

  • Angle bisector of a triangle

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

  • Angular size, linear size and distance

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

Bank card number validation

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

Bank card numberCreative Commons Attribution/Share-Alike License 3.0 (Unported)

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.

Base 64 encoderCreative Commons Attribution/Share-Alike License 3.0 (Unported)

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