Calculate how much you spend smoking, so how much you could save after quitting smoking.

With the percentile calculator you will calculate the percentile position and find the value. Percentile or centile is a measure in statistics that indicates a value for which P Percentage of the Population is equal to or less than that value and 100-P is greater.

With the help of the math calculator you can easily and quickly calculate the slope, the point of intersection with the Y axis.

Isosceles trapezoid calculator will help you calculate diagonal of the isosceles, the side length, height, area, perimeter and the radius of the circumscribed circle of the isosceles.

Using the calculator, you will calculate the resting metabolic rate (RMR) and the amount of calories needed to supplement, i.e. burned by the body while resting.

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

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.

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.

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

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.

You can easily and quickly calculate the sum of an arithmetic sequence, calculate the value and the difference of an arithmetic sequence or find the nth expression.

You can easily and quickly calculate the roots of a cubic function or cubic equation otherwise known as a third degree equation.

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

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

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.

With the Langevin trigonometric function calculator you can calculate the values of the function. In addition to the response results, the calculator will also plot the selected function. You can choose a ready function, e.g. L(x) or enter your own function, e.g. L(x^2), L(x+3) etc.

Thanks to the calculator, you can use several factors to check the degree of risk of a heart attack in the next ten years.

The PV calculator helps us to calculate the current value of an investment, i.e. the PV (present value). The PV calculator calculates the amount we need today to obtain the given value in the future after a certain number of years and calculating the interest due, assuming that they will be capitalized (added to the capital) with the specified frequency (e.g. weekly, monthly, quarterly, semi-annually, annually) ie how much do you need today to get X in the future

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.

With this calculator, you will calculate the exact tire pressure required for your bicycle tires on the front and rear wheels depending on the load, wheel size, bicycle weight, etc.