Grazing Calculator is an iPhone app designed for dairy and beef farmers who need to perform grazing-related calculations quickly and easily. Developed by Louise Hathaway in collaboration with a dairy farmer, his sister, and other farm advisors, this app provides a simple way to calculate a number of common grazing equations.

The app includes calculators for days in paddock, DM/cow/day, crop allocation, pre-grazing cover, and average pasture cover. Each calculator provides an approximate result based on paddock size, cover, residual, number of cows, and other variables. The results can be used to calculate where to put the break fence in a paddock.

Other features include the ability to choose the metric or US system of measurement, share the result of the calculation, and add a note after completing the calculation. The app is designed to be used out on the farm and on the go, making it easy for anyone working on a dairy or beef farm to get the numbers they need when they need them.

Overall, Grazing Calculator is a must-have app for any dairy or beef farmer who needs to perform grazing-related calculations quickly and accurately.