Previously limited to just a handful of milk replacers produced by one manufacturer, the calculator now provides a selection of over 50 products, individual lots and supplemental ingredients. The user may select up to 6 products or ingredients concurrently from an easy to use drop-down menu when evaluating a formula. The detailed Typical Nutritional Analysis is also provided for each of the individual products and ingredients. The input may be either in volume (parts) or by weight (in grams). Some users prefer to enter the values in grams to alleviate creating inaccurate results because of measurement error.

If the calculator does not already include a specific product, the user has the option to input up to three custom products. The user will need to have certain data about the composition of the product or ingredient (such as % solids, % protein, etc.) as well as the weight in grams of 1 tablespoon of the product or ingredient.

The calculator includes species-specific research studies that have previously analyzed the composition of the mother animal's milk found in nature for several species commonly rehabilitated in North America. Multiple studies have been included in the calculator for several species. In most of those cases, an average value is also included in the calculator. This feature also calculates the degree to which the formula is balanced in terms of the relationship of the solids, protein, fat and carbs within the formula.

4.) Allows user to input up to 3 custom mother's milk research studies.

If the calculator does not already include a specific study, the user has the option to input up to three research studies of mother's milk composition. The user will need to have certain data about the composition of the milk from the research study (such as % solids, % protein, etc.).