Soil Test Calculator

Take the guesswork out of soil health. This automated calculator is designed to translate your lab results into an exact, actionable amendment plan tailored to your growing space.

Simply input your soil type and your current test results, and the calculator does the heavy lifting. It instantly identifies exact nutrient deficiencies and provides precise recommendations on the natural inputs needed to unlock your soil's full potential.

Beyond just the numbers, this tool serves as an educational guide. It includes a comprehensive breakdown of the science behind soil health, explaining exactly why and how regenerative methods—like liming, strategic mulching, and biological inoculations—transform your dirt into living soil.

A Purchase With Purpose: When you purchase this calculator, you are directly supporting Bread and Butter Farms—a 13th-generation, family-owned urban farm. Your investment sustains our livelihood and allows us to continue sharing time-tested, zero-chemical agricultural wisdom with the world. Thank you for growing with us, and please share this resource with your farming community.