My name is Chris. I’m a 5th generation farmer in the Columbia Basin, Washington State, farming potatoes, corn, and wheat on an irrigated family operation.
I built MyFarmCalc because I got tired of the patchwork. Before this site existed, every calculation meant switching between my phone calculator, pen and paper, and a handful of spreadsheets that were clunky to use in the field. I could never find a single resource that handled the different types of calculations I actually needed. I’d find a calculator that was close enough, then go back to my phone to finish the math — or build a spreadsheet that worked fine at my desk but was useless standing next to a pivot.
I built the tools I wished already existed.
Every calculator on this site is built from published agronomic references — USDA research, WSU Extension publications, and industry standards. Formulas are cross-checked against known benchmarks. If you find a result that doesn’t match your real-world experience, let me know — accuracy matters and I’ll investigate.
Questions, bugs, or feature requests: myfarmcalc@gmail.com