Lime Requirement Calculator Lime Requirement Calculator Current Soil pH Target Soil pH Buffer pH (BpH) Lime Product Custom / Enter CCE New Enterprise – East Earl Mag Lime (103.5% CCE) New Enterprise – East Earl Cal Lime (90.4% CCE) Calcium Carbonate Equivalent (CCE %) Calculate Lime Needed Enter values to calculate lbs/acre Calculation adjusts lime rate based on product CCE value.