This calculator will help you to estimates number of flagstones needed for paving
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
This online calculator plots one-variable function graph given function formula and range of variable
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
Petroleum product density conversion, according to GOST 3900-85
The calculation of the correlation coefficient of two random variables
This online calculator gives the percentage of the value. It also calculates the percentage of the sum (e.g. the income tax of the net salary) and the percentage of the difference (e.g. VAT of the gross amount).
Calculates the section flexure depth with pipe bender or bending machine to obtain given parameters.
This online calculator outputs compass point given direction angle in degrees. Different compass roses (4, 8, 16, 32, 128-wind compass roses) are supported.
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.
Calculates progressive tax according to tax rate table.
Calculates the prospect distance from height at observer and line of sight distance between two observers.
This online calculator allows user to experiment with regular expressions.
This calculator outputs desired root and power of entered number
The study of periodic (seasonal) fluctuations. Calculation of average seasonal index by constant mean method.