PetroCalc is a free mobile application that provides comprehensive knowledge and industry-relevant calculations to petroleum engineering students and young professionals. It covers topics from geoscience and reservoir engineering to drilling and production engineering, making it an excellent resource for anyone seeking a comprehensive overview of the industry. The app offers 24 specific calculators, including API to Specific Density Converter, Z-Factor Calculation, and Oil and Gas in Place.

In addition, PetroCalc also presents guidelines for those undertaking field development projects. The app provides course-relevant theory and specific calculators for the field of petroleum engineering. Formulae used in the calculators are also presented, making it an excellent student aid. The app has an online component that gives users access to EXCEL spreadsheets that can perform more complex calculations. The spreadsheets can be downloaded to the mobile device or taken to the PC for offline use.