Yes, HVAC load calculations can be performed using software tools, such as computer-aided design (CAD) software, building information modeling (BIM) software, and specialized HVAC load calculation software. These tools can simplify the calculation process, reduce errors, and provide detailed reports and outputs. However, it is essential to ensure that the software is based on industry-recognized standards, such as ASHRAE, and that the user has a thorough understanding of the underlying calculation methods and assumptions.