Calculator spending on cigarettes

The calculator calculates the amount of collected rainwater from the roof of the given dimensions. Long description      

On the basis of the data entered, the amount of drink and the percentage of alcohol content calculator calculates pure ethyl alcohol that we consume.

Calculator to the data calculates the estimated time of charging.            

Calculator based on the average salinity of the basin are calculated freezing point of the water content by the formula Krummel.        

Calculator allows to determine the actual distance corresponding to the distance on the map with the specified scale. If the map at 1:500,000 scale the input field, enter the value 500000.