Using this calculator you can calculate the percentage concentration, also called the percentage by weight of chemical substances in mixtures and solutions.

This calculator is a complete tool to calculate the heat loss of your home Whit this calculator, we will find out what the heat losses are, e.g. through the ceiling, external walls, windows, floor in each room of our house, depending on the type of building material, number of layers, insulation and external temperature.

Using the calculator, you will calculate the resting metabolic rate (RMR) and the amount of calories needed to supplement, i.e. burned by the body while resting.

You can calculate any system of linear equations, both homogeneous and heterogeneous with any number of unknowns Using the Inverse of a Matrix method.

Rectangle calculator will help you calculate the diagonal of the rectangle, the side length, height, area of the rectangle.

You can easily and quickly calculate the roots of a cubic function or cubic equation otherwise known as a third degree equation.

Calculate the diagonals of a concave deltoid, kite, side lengths, surface area, perimeter and radius of the inscribed circle. Each size can be calculated using many formulas, just indicate what data we have.

The calculator is used to calculate the coverage of bills by profit before paying off the tax bill.

With this calculator you can calculate the HB hardness or the hardness of metals based on the Brinell hardness test.

The calculator is designed to calculate the amount of bricks or blocks needed. How many bricks do we need to build a wall of the given size, including wall openings and joints, how many bricks should we order, taking into account waste and what will be their weight.

Calculate how much you spend smoking, so how much you could save after quitting smoking.

Thanks to the calculator you can calculate the number of letters, the number of words, the number of characters and the number of paragraphs in any text.

The Body Fat percentage calculator will help you calculate the amount of fat stored in your body. It uses a method of measuring skin folds in seven different places on the body.

With this calculator you can quickly calculate the kinetic energy of an object. You will also calculate mass from energy and velocity and speed given kinetic energy and mass.

With this calculator you can calculate the density of the substance, i.e. specific mass. The calculator will also help to determine the mass of the substance and the volume it occupies.

The reactive power calculator in AC circuits will help you easily calculate reactive power, voltage and current.

With the Fractions Calculator, you can subtract any two mixed numbers or proper and improper fractions.
Fractions Calculator will show you the result of operations on fractions step by step and will give you explanations of the operations performed to subtracting fractions. You will learn how to simplify fractions, how to find a common denominator, how to find the least common multiple and the greatest common divisor.

With this calculator you will calculate the geometric mean, also called the power mean of the zero order.

Using this translator / converter you can quickly and easily check how to spell each word using the international (and not only) phonetic alphabet.

AtBash cipher online encoder and decoder. Encrypt and decrypt any cipher created in a AtBash cipher.