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

Rail Fence, Zig-Zag cipher online encoder and decoder. Encrypt and decrypt any cipher created in a Rail Fence, Zig-Zag cipher.

With the Fractions Calculator, you can add 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 add 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.

How to convert a dog's age to human age? How old is a dog in human years? How long will my dog live? Dog Age Calculator will help you with these and many other questions.

With this statistical calculator, you will learn how to calculate the arithmetic mean of a distribution point series (grouped data).

Using this calculator, you can calculate the total volume of the solution after dilution and the volume of solvent added during dilution.

With this calculator you will learn how to add in columns. You can check if the addition you have made is correct

Four-square cipher online encoder and decoder. Encrypt and decrypt any cipher created in a Four-square cipher. You can use any shift and additionally a key for more precise text encoding.

Burrows-Wheeler transform online encoder and decoder. Encrypt and decrypt any cipher created in a Burrows-Wheeler transform.

Using the calculator you can calculate the molecular weight of any chemical compound.

Hexagon calculator will help you calculate the long diagonal of the hexagon, the short diagonal of the hexagon, the side length, height, area of the hexagon, the radius of the circumscribed circle and the radius of the circle inscribed in a regular hexagon.

The calculator will calculate the estimated number of heartbeats and breaths you have given since birth.

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

Using this calculator, you will calculate the pulse duration of the output pulse of the NE555 IC in monostable or astable mode of operation.

ROT13 cipher online encoder and decoder. Encrypt and decrypt any cipher created in a ROT13 cipher. You can use any shift and additionally a key for more precise text encoding.

With this calculator you will calculate the mean square or arithmetic mean of the squares also known as the power mean of the second order.

Use this calculator to calculate the molecular weight of gas.

Pentagon calculator will help you calculate the long diagonal of the pentagon, the medium diagonal of the pentagon, the shorter diagonal of the pentagon, the side length, height, area of the pentagon, circumference and radius of the circumscribed circle and the radius of the circle inscribed in the regular pentagon.

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

Using this calculator, you can calculate the volume percent concentration, also called the volume percentage of chemicals in mixtures and solutions.