These calculators convert entered number of flagstones to area size and vice versa - calculate number of flagstones needed to cover entered ara size. Metric and imperial units are supported
Calculator calculates the number of days between the two entered dates. Taking into account weekends, holidays and weekend shifts to work days, according to the published decrees of the government of the Russian Federation.
To calculate definite integral by the rectangle method, trapezoid method, Simpson method or other Newton-Cotes quadrature methods.
Old Russian calendar - years since world creation
This online calculator plots one-variable function graph given function formula and range of variable
Petroleum product density conversion, according to GOST 3900-85
This online calculator checks lines' slopes to see if they are parallel or perpendicular
Calculates number of PBX telecommunications channels for given traffic load using Erlang B and Engset algorithms
Calculates the section flexure depth with pipe bender or bending machine to obtain given parameters.
Online calculator which calculates area of a polygon given lengths of polygon sides and diagonals which split polygon to nonoverlapping triangles
This online calculator turns power into torque and vise versa
This online calculator computes pressure, cause by given mass over given surface in gravity field. Result is displayed using different units of pressure
Power units converter.
Calculator which converts units of pressure
This online calculator calculates the price of certain area based on price of running or linear meter
Gives probability of k success outcomes in n Bernoulli trials with given success event probability.
Calculation of unknown parameters of projection using known parameters. Parameters are duration, maximum height, distance, initial velocity and angle.
This online calculator finds unknown member of proportion. Created by user's request
Calculates the prospect distance from height at observer and line of sight distance between two observers.