Choose language

PL, EN, ES, DE, FR, RU


Popular calculators online

Quadratic function - canonical form - analysis

With this calculator you can perform a complete canonical form analysis of the quadratic function with explanations. The calculator will show you how to find the general form of a quadratic function from its canonical form. Moreover, it will determine the zeros of the function, its vertex coordinates, calculate the delta and present the product and general form of our function.

Interest coverage ratio - calculator

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

Vigenère cipher - encoder / decoder

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

Brinell hardness scale

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

Price, discount and discount rate of a treasury bill

This financial calculator will help you calculate the purchase or sale price of Treasury bills, the amount and the annual discount rate.

Ideal gas

Using the calculator, you can calculate the pressure, volume, temperature and volume of moles of ideal gas.

Daltons law of partial volume

Thanks to the calculator, you can calculate the partial volume according to Daltons law.

Four-square cipher - encoder / decoder

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.

Weight and age on the planets

What would your weight be on other planets? How old would you be on another planet in the solar system? When would you have your birthday? You can check it with this calculator. You can also check what the weight of any item would be. The calculator will convert your weight and age into the weight and age you would have if you lived on Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune or Pluto.

Addition in columns

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


New calculators

Text analyzer, number of words, number of letters, number of lines

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.

Morse code translator, encoder-decoder

With the converter, you can quickly translate any sentence into Morse code and vice versa. You can listen to the translated code, see it thanks to the light signals or, using the phone, feel it through vibration. Morse code is used nowadays mainly in amateur radio, it is also useful in many other areas of life.

Online tool for drawing graphs of any function.

With this online function graph plotter, you can draw any function. On one graph you can draw any three functions and compare their parameters. You can create graphs for many equations and functions.

Spelling words with the phonetic alphabet - converter, translator

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

Trifid cipher - encoder / decoder

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

Four-square cipher - encoder / decoder

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 - encoder / decoder

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

Vigenère cipher - encoder / decoder

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

Vernam cipher - encoder / decoder

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

AtBash cipher - encoder / decoder

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



Online calculator