Mud Engineering Calculator is a drilling fluids program for performing mud engineering calculations. This tool is useful to Fluids Supervisors, Fluids Coordinators, Wellsite Mud Engineers, Cement Engineers and Laboratory Technicians. This app among others calculations, performs Mud Checks/ Solids Analysis for OBM/ SBM & WBM, Water Phase Salinity Adjustment, Oil-Water Ratio adjustment, Mud Weight Calculations, Mud Tank Capacity Calculations, Wellbore Volume Calculations and Pump Output Calculations. This program has been tested on different android devices.