Online Calculators
Make your calculations easy
Free, web-based tools for rock mass properties and rock bolt design — built by engineers, for engineers.
Online tools to streamline your design workflow
Web-based calculators built for working geotechnical engineers.
Rock Mass Properties Calculator
Specialised tool for calculating rock mass strength parameters using the Hoek-Brown criterion.
Launch CalculatorRock Bolt Design Calculator
Streamline repetitive rock bolt and anchor design calculations with a free web-based tool.
Launch CalculatorTutorials
Learn the tools
Rock Mass Calculator — Comparison with RocLab
Detailed comparison PDF showing parameter agreement between our calculator and the industry-standard RocLab software.
Download PDFNeed help applying these calculators to your project?
We offer review services and design support for projects using rock mass properties.