All online calculators

• Inverse trigonometric functions

  This calculator determines values of inverse trigonometric functions (arcsine, arccosine, arctangent, arccotangent, arcsecant, arccosecant) and outputs it with different measurement units (degrees, radians, minutes, etc)

• Involute of an angle

  Involute of an angle calculator and finding an angle by the given involute.

• Is a point in a triangle?

  The calculator determines if an arbitrary point lies inside 2D triangle. The triangle is defined by 3 cartesian coordinate pairs.

• Isogram checker

  This online calculator can check if a word/phrase is an isogram.

• Issue number generator

  Issue Number Generator for unnumbered magazines & comics & newspapers. If magazine did not print issue numbers, only dates, it can number them all, f.e. all Sundays starting with specified date up to specified date

• Jaccard / Tanimoto Coefficient

  This online calculator measures the similarity of two sample sets using Jaccard / Tanimoto coefficient

• Julian and Gregorian calendars

  Julian and Gregorian calendars date conversion

• Julian Day

  Calculation of Julian day for given date plus some information about it

• Keyboard layout and password

  Converts the word, typed in Russian letters into a set of symbols corresponding to these letters in English keyboard layout which is often used to create a Russian-speaking user passwords.

• Kinematic Equations for Uniform Acceleration

  This calculator will help you to solve uniform acceleration problems using kinematic equations

• Kinematics. Throwing body up problem

  Kinematics problem from the Svetozarov's book for MEPI matriculates

• Labor retirement pension amount (for Russia)

  Calculates labor retirement pension amount in accordance with the law.

• Lagged scatterplot

  This online calculator builds scatterplot of the time series against itself offset in time

• Laminate flooring. The calculation of the number of planks

  The calculation of the number of planks requiered

• Land tax

  Calculates the land tax

• Large breed puppy weight gain recommendations

  Large breed puppy weight gain recommendations

• Least Common Denominator for several fractions

  Least Common Denominator for several fractions

• Length of service calculation

  Length of service calculation for several periods of work

• Lengths of triangle sides given one side and two angles

  This online calculator determines lengths of triangle sides given one side and two angles

• Level of liquid in the cylindrical tank, AKA Quarter-Tank Problem

  This online calculator finds the height above the bottom of a horizontal cylinder (such as a cylindrical gas tank) to which the it must be filled for it to be full at specified percentage (for example, one quarter full amounts)