Product manufacturers, in order to mislead the buyer, pack the products in a package in which the weight is not a multiple of kilograms, liters and tens - 180 grams, 900 milliliters, 9 pieces, etc.

To choose the best product in terms of price / quality ratio, you need to know the price of the product per kilo / liter / dozen.

 But in a store it can be difficult in the mind to count the price for a non-standard weight into the price per kg, remember and compare it with the price for another non-standard weight.
What is cheaper - cottage cheese in a pack of 180 gr. for 53 rubles 60 kopecks or cottage cheese per package 210 gr. for 62 rubles 44 kopecks? You won’t tell me
 
The application "Shopping list and price per kilogram calculator" allows you to quickly enter the name, weight and cost of packaging, calculate the price per kilo / liter / dozen by voice or from the keyboard and record for comparison with other products.

Products with calculated prices can be added to shopping lists.

By adding the names of the stores in which you make purchases, you can create shopping lists indicating the store where they need to be made.