8706
Math

The center point (mid point)

The calculator calculates the coordinates of the point located exactly halfway between two preset points in the two-dimensional plane.          
8353
Math

The volume of a cube

The calculator allows you to calculate the volume of a cube.
29822
Life

Calculator - dosage of CO2 in the aquarium

Ile co2 w akwarium? Dawkowanie co2 w akwarium.
The online calculator by entering the pH and kH values ​​to calculate the concentration of CO2 in the aquarium.                
13185
Life

How far was struck by lightning

Calculator based on the specified time from seeing lightning until you hear thunder in the distance calculated discharge occurred.          
5041
Building

Metal weight calculator

the calculator calculates the mass of metal parts according to the form of the product and the type of metal