# NRC Calculator — Estimate calf weight gain

> Calf weight gain estimation tool based on feed and environmental factors. (iPhone/iPad app by Milk Products, LLC.)

- Source: https://appshunter.io/ios/app/nrc-calculator/id1515018491 (this page in markdown: same URL + `.md`)
- Developer: [Milk Products, LLC](https://appshunter.io/developer/1488635007)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 4 MB
- Languages: English
- Released: 2020-06-12
- Data updated: 2026-07-19
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/nrc-calculator/id1515018491/reviews.md

## What is NRC Calculator?

The NRC Calculator estimates energy and protein allowable average daily gain of the dairy calf based on user inputs regarding the volume of whole milk and/or milk replacer fed, the percent solids of whole milk or milk replacer solution, whole milk protein, and fat content, milk replacer protein, fat, moisture and ash content, starter grain intake, protein content, and metabolizable energy content, calf body weight, and ambient temperature. Milk replacer, whole milk, or a combination can be analyzed and two strategies can be compared side-by-side on one convenient screen. The calculator reports energy allowable average daily gain and protein allowable average daily gain for each diet thus enabling an easy assessment of the constraint to an increase in potential calf body weight gain. Measurements are available in metric or imperial, and the program is operable in English, Spanish, Portuguese, French, Chinese, and Japanese. This app is available for free globally on a variety of platforms. All formulas are based on Nutrient Requirements of Dairy Cattle, Seventh Revised Edition, 2001, subcommittee on Dairy Cattle Nutrition Board and Natural Resources National Research Council (NRC), National Academy Press, Washington, D.C., U.S.A. The NRC Calculator is a joint project between Milk Products Inc, and Animix LLC of Juneau, Wisconsin.

## Key features

- Estimate energy and protein allowable average daily gain
- Analyze milk replacer, whole milk, or combination diets
- Compare two feeding strategies side-by-side
- Supports metric and imperial measurements
- Operable in multiple languages

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/nrc-calculator/id1515018491/reviews.md

### 5/5 — Nice app

*2020-07-13*

Very easy to use and nice to work with animal science students.

## Frequently asked questions about NRC Calculator

### What is NRC Calculator?

NRC Calculator is a utility app designed to estimate the energy and protein allowable average daily gain for dairy calves based on various feeding inputs and environmental conditions.

### How accurate is NRC Calculator?

The app's formulas are based on the 'Nutrient Requirements of Dairy Cattle, Seventh Revised Edition, 2001' from the National Research Council. It has a 5.0-star rating from 2 reviews.

### What feeding strategies can NRC Calculator analyze?

NRC Calculator can analyze diets using milk replacer, whole milk, or a combination of both. It allows for a side-by-side comparison of two different strategies on a single screen.

### Does NRC Calculator support different units of measurement?

Yes, measurements can be displayed in either metric or imperial units, providing flexibility for users worldwide.

### What languages does NRC Calculator support?

The application is available in English, Spanish, Portuguese, French, Chinese, and Japanese, making it accessible to a global user base.

### Is NRC Calculator free to use?

Yes, NRC Calculator is available for free on a variety of platforms globally.

### When was NRC Calculator last updated?

The latest version, 1.0.6, was released on November 2, 2020. The app was initially released on June 12, 2020.

### What devices is NRC Calculator compatible with?

NRC Calculator is available for iPhone, iPad, and iPod devices.

## Version history (last 4 releases)

### 1.0.6 — 2020-11-02

Fixed issue that prevented user from inputting negative temperatures on iOS.

### 1.0.5 — 2020-08-29

Several bug fixes.
Improved input label clarity.

### 1.0.4 — 2020-08-09

Updated Spanish translations
Fixed bug that was causing average daily gain to calculate incorrectly at certain ambient temperatures

### 1.0 — 2020-06-12

No release notes.

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## More apps by Milk Products, LLC

- [Whole Milk Calculator](https://appshunter.io/ios/app/whole-milk-calculator/id1488635008)

All apps by Milk Products, LLC: https://appshunter.io/developer/1488635007

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-19.*