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Popular calculators

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.

Home heat loss calculator

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.

Arithmetic mean of the distribution point series (grouped data)

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

Child's blood group

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

Burrows-Wheeler transform - encoder / decoder

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

Solving any Systems with the inverse matrix method

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

How many wallpapers?

With this calculator, you can easily calculate the cost and amount of wallpaper needed to make any room.

Rectangle - diagonals, area, perimeter, sides

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

Geometric mean calculator

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

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.

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.

AtBash cipher - encoder / decoder

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

Bifid cipher - encoder / decoder

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

Floor panels and materials calculator

Flooring Calculator is a complete tool to calculate the costs and materials needed to lay a wooden floor. Thanks to the calculator, we will find out how many packages of panels, underlay, vapor barrier foil under the panels, skirting boards, connectors, corners and plugs will be needed, as well as the cost of all materials including labor.

Molecular weight of compounds and chemical elements.

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

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.

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.

Deltoid, kite concave, dart, arrowhead - diagonals, area, perimeter, sides

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.

Number of breaths and heartbeats - calculator

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

Apparent temperature calculator

Use this calculator to calculate the "wind chill" temperature or apparent temperature, i.e. the temperature equivalent to humans, caused by the combined effects of air temperature and wind speed



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