Irrigation scheduling is a decision making process that irrigation extension worker/farmer encounter daily or weekly. They can take better decisions if more specific information about crop evapotranspiration and the current soil water status is available in a simplified way for extension to the farmers' fields. The reported computer model of irrigation scheduling is designed to compute the irrigation water requirements for selected crops in the Punjab province of Pakistan, based on weekly intervals of planting dates in appropriate season upon specific Punjab soil, moisture characteristics, crop characteristics such as rooting depth and ratio of actual to potential evaportranspiration as experimentally obtained. The methodology, input data requirements and sample results of irrigation schedules of wheat crop are presented.