This app was designed to aid small plot researchers. This app contains a unit converter, area calculator and rate calculator. In this app there are multiple ways to preform unit conversion. The app also calculates the amount of fertilizer material needed per plot, rep, and trial. This is done through the input of the fertilizer nutrient concentration, plot size, number of treatments and reps. This project is supported by Oklahoma Fertilizer Checkoff, Oklahoma Agriculture Experiment Stations and the Oklahoma Cooperative Extension.