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.

Using this calculator you can calculate the weight equivalent of acid.

This calculator helps us check whether the planned investment will be profitable and whether the project should be accepted or rejected.
Thanks to the calculator, we can calculate:
NPV (Net Present Value) - sum of discounted net cash flows
PI (Profitability Index) - investment profitability
IRR (Internal Rate of Return) - internal rate of return
DPP (Discounted Payback Period) - discounted payback period
Value of discounted net cash flow for each period.

The CAPM calculator can be used to calculate the cost of equity, to evaluate the investment effectiveness of collective investment funds (open-end investment funds, pension funds, etc.), to study the efficiency of the stock market, etc.
The CAPM model allows to illustrate the relationship between the incurred systematic risk, otherwise known as market or non-diversifiable risk, and the expected rate of return.

The CAPM calculator in the form of CML allows you to calculate the expected rate of return from the so-called the effective portfolio (on the border of Markowitz's effective portfolios).

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.

With this calculator you can calculate voltage drops for single-phase and three-phase AC circuits calculated from the rated current. You will also calculate wire length, wire diameter, wire cross-sectional area, voltage or current.

The calculator will help you calculate deltoid (kite) diagonals, side lengths, area, perimeter and radius of the inscribed circle. Each size can be calculated using many formulas, just indicate what data we have.

With this calculator you can quickly calculate the kinetic energy of an object. You will also calculate mass from energy and velocity and speed given kinetic energy and mass.

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.

With this calculator you can perform a complete product 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 product form. Moreover, it will determine the zeros of the function, its vertex coordinates, calculate the delta and present the canonical and general form of our function.

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

The FV calculator helps us calculate the future value of the investment. The FV calculator calculates the amount we will receive in the future after validating a given amount now for a specified number of years and after calculating the interest due, assuming that they will be capitalized (added to the capital) with a given frequency (e.g. weekly, monthly, quarterly, semi-annually, annually) .

The calculator helps you to calculate the present value of money (PV) and the future value of money (FV) in time.

The Body Fat percentage calculator will help you calculate the amount of fat stored in your body. It uses a method of measuring skin folds in seven different places on the body.

Thanks to the calculator, you can quickly and easily calculate how much money you will accumulate in a given period by putting a monthly fixed amount on your account for a specified period of time, giving the annual interest rate.

Use the Ishihara test to check if you suffer from color blindness, to what extent your defect is Protanopia or Deuteranopia, or maybe just insufficient differentiation between red and green shades. As a result, in addition to the diagnosis, you will have the opportunity to check how each of the Ishihara plates is seen by people with various visual impairments, and if you have a defect, they will allow you to see what is on the plates.

With this statistical calculator You can easily calculate standard deviation, variance of standard deviation, population standard deviation, variance of population standard deviation and arithmetic mean. With this data analysis tool, you will see the calculations performed step by step along with the formulas used.

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

With the help of the calculator you will calculate the determinant of the fourth degree matrix by the Laplace Expansion method. You will learn step by step how the calculations are performed and we will get explanations of each action. A useful tool for learning, consolidating, checking your own calculations and understanding the Laplace method.

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