Choose language

PL, EN, ES, DE, FR, RU


Popular calculators

Ventilation efficiency calculator in the bathroom, toilet or kitchen

With this calculator, we will find out what ventilation efficiency should have depending on the size, height and type of room, e.g. in the kitchen, bathroom or toilet. The ventilation calculator will help us choose the right fan for the selected room, e.g. it will facilitate the selection of the hood for the kitchen.

Ideal gas

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

Bike size and bike frame size calculator

The calculator will help you choose the size of the bike, bike frame, wheel size depending on the type of bike, your height, leg length or age.

Cone - volume, area, generatrix, radius of base

The cone calculator will help you calculate the volume of the cone, the total area of the cone, the side area of the cone, the base area of the cone, the generatrix length and the radius of the cone base, and the volume of the sphere described on the cone.

ADFGX / ADFVGX cipher - encoder / decoder

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

Amount of concrete needed for the foundation or ceiling

Calculator of the amount of concrete needed to build a foundation slab or a concrete ceiling.

Leverage, Operating Leverage, Total Leverage, Gearing

The DFL Finacial Leverage Calculator will help us calculate how sensitive the cash flow is to changes in operating profit.
With the DOL Operating Leverage Calculator, we will calculate how sensitive operating revenues are to changes in sales. The DTL Total Leverage Calculator will help us calculate the profit sensitivity to sales growth.

Arithmetic mean of the interval distributive series - calculator

Calculator of the arithmetic mean of a series of distributing class intervals.

Centrifugal force

With this calculator you can quickly calculate the centrifugal force. You will also calculate the mass of the body from velocity, radius and force, the radius of the circle given the mass of the body, the force and speed and the speed of the object moving in the circle given the given force, mass and radius.

Rhombus - diagonals, area, perimeter, sides

Rhombus calculator will help you calculate the long diagonal of the rhombus, the short diagonal of the rhombus, the side length, height, area of the rhombus, radius of the circle inscribed in the rhombus.

Child's blood group

You will calculate with fairly high accuracy the likelihood of your baby having a particular blood group.

Caesar cipher - encoder / decoder

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

Water loss in the body calculator

Using the calculator, we will calculate the water lost from the body and the percentage of weight loss after the exercises.

Vertical projectile motion - speed, time, height

With this calculator, you can calculate the velocity of a body thrown vertically after a specified time and the initial velocity given to the body. You will also calculate the time elapsed from the moment of the throw to reach a certain speed, the time the body flies to the return to the place of the throw and the time after which the body reaches its maximum height. The calculator will also help you calculate the height at which the body is located after a certain time and will calculate the maximum height that the body will reach. The calculator also allows you to estimate the gravitational acceleration which can be useful in determining where the body was thrown.

Child height in the future. Predicted Adult Height calculator

Height calculator will help you calculate what height your child will have in the future, ie when it stops growing. Predicted Adult Height

Burrows-Wheeler transform - encoder / decoder

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

Fraction calculator - dividing fractions step by step with explanation

With the Fractions Calculator, you can dividing 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 divide 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.

HUBBERT curve calculator

With the Hubbert Curve Calculator you will calculate the curve values. In addition to the response results, the calculator will also plot the selected function. You can choose a ready-made function, e.g. hubb(x) or enter your own function, e.g. hubb(x^2), hubb(x+3), etc.

Dilution of solutions

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

Ventilation in the attic/loft

The calculator is used to calculate the ventilation capacity in an attic or loft for the minimum, normal and extreme thermal conditions of the environment depending on the area and height of the room and the roof pitch. The fan removes warm air from the room and should be mounted at the highest possible point for the best efficiency.



Online calculator