All online calculators

• RGB - HSV and HSV - RGB converter

  This calculator converts RGB color to HSV color and vise versa

• Roman numerals

  Converter of Roman numbers and decimal numbers

• Root and power

  This calculator outputs desired root and power of entered number

• Russian Central Bank Currency Rates

  Russian Central Bank Currency Rates

• Russian non-working days

  The calculator displays official day offs for the current year and the weekends adjacent to them. The calculator takes into account weekends shifts according to Russian Federation Government Decrees.

• Russian text typed in English letters

  Restores the Russian phrase, accidentally typed on the English keyboard layout.

• Saturation vapour pressure

  This online calculator computes saturation vapour pressure for given temperature and atmospheric (barometric) pressure

• Seasonal fluctuations. Seasonal indices. Constant mean method.

  The study of periodic (seasonal) fluctuations. Calculation of average seasonal index by constant mean method.

• Seating chart

  This calculator tries to find seating chart combinations taking into account preferences of students.

• Secant method

  The secant method is a root-finding algorithm that uses a succession of roots of secant lines to better approximate a root of a function f.

• Second, third and other derivatives

  Evaluates first, second third and other derivatives of a single argument function

• Select a phone number from the text

  This calculator uses regular expressions to select phone numbers from a large block of text

• Shadow length

  Gives a vertical object shadow length for given coordinates and time. Also calculates shadow growth during whole day.

• Shannon coding

  This online calculator generates Shannon coding based on a set of symbols and their probabilities

• Shannon Entropy

  This online calculator computes Shannon entropy for a given event probability table and for a given message

• Shannon-Fano coding

  This online calculator generates Shannon-Fano coding based on a set of symbols and their probabilities

• Shipment weight

  Calculating the weight by the volume of shipment. Created by user's request.

• Shoe size comparison

  This calculator converts european shoe size to its english and US counterparts.

• Side length of a triangle

  This calculator computes side length of a triangle given two sides and angle between them (law of cosines)

• Side length of the regular polygon

  Calculates the side length of the regular polygon circumscribed or inscribed to a circle. Created by user's request