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Popular calculators

Assessment of readiness to lose weight

Did you know that proper preparation is an essential factor in losing weight successfully? This test will not only help you answer the question of whether you have a chance of successful weight loss, but it will also indicate the factors that are necessary in preparation for this process.

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.

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

Playfair cipher - encoder / decoder

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

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.

Gudermannian function - hyperbolic amplitude

With the GUDERMANN trigonometric function calculator you can calculate the values of the hyperbolic amplitude. In addition to the response results, the calculator will also plot the selected function. You can choose a ready-made function, e.g. gd(x) or arcgd(x) as the inverse of the Gudermann function, or enter your own function, e.g. gd(x^2), gd(x+3), etc.

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

Child's blood group

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

Mode of the series of distributing class intervals

Online calculator calculates the mode of series of distributing class intervals. You learn how to find the Modal value for a grouped data with different intervals between the data classes.

Molecular weight of gas

Use this calculator to calculate the molecular weight of gas.

Solving Systems with Gaussian Elimination calculator

You can calculate with explanations any system of linear equations, both homogeneous and heterogeneous with any number of unknowns by Gaussian elimination method. As a result, apart from the solution, you will also receive a complete analysis and a step-by-step calculation.

Quartiles Q1, Q2, Q3 of the interval series

With this statistical calculator, you will learn how to calculate the lower quartile, middle quartile, and upper quartile of an interval resolution series.

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.

Burning calories

The calculator calculates how much energy we spend by performing selected activities within the given time. This can help you plan your daily calories burned for example.

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.

Centripetal force

With this calculator you can quickly calculate the centripetal 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.

Harmonic mean calculator

With this calculator you will calculate the harmonic mean.

Polygon - diagonals, height, area, perimeter, sides

Regular polygon calculator will help you calculate the diagonals of any regular polygon, side length, height, area, perimeter and radius of the circumscribed circle and the radius of the circle inscribed in a regular polygon.

ROT13 cipher - encoder / decoder

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.



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