All online calculators

Day of week by date

This online calculator outputs day of week for given date

PLANETCALC, Day of week by Date

Day of week by 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.

  • Days between dates. The historical version.

    Calculates number of days between two dates taking in account the date of transition to Gregorian calendar.

  • Days count in several date spans

    The calculator gives total number of days in date span list. Each date span is defined by start date and end date. The calculator can exclude multiple date date span intersections.

  • Density of oil

    Recalculation of density of oil for different temperature and pressure values. Formulas are taken from Russia's GOST R 8.610-2004. "State system for ensuring the uniformity of measurements. Density of oil. The tables for recalculation" standard

  • Derivative

    It finds one variable function derivative. Step by step differentiation solution is also provided.

Distance across the surface vs distance through the Earth

This calculator calculates distance across the surface of the Earth and distance through the Earth for given two points, then compares them.

PLANETCALC, Distance across the surface vs distance through the Earth

Distance across the surface vs distance through the Earth

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Digits after the decimal point: 3