CIBSE's Knowledge Toolbox is a collection of applications, spreadsheets and data files that help you to do your job. Some of these can be downloaded below, and others will link directly to web tools.
Click on the tool you're interested in to find out more.
Energy Benchmarking Dashboard
Relevant and reliable benchmarks, reflecting current trends in energy use
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Embodied Carbon Calculator: UK
Supports consultants, researchers and manufacturers in implementing the TM65 embodied carbon methodology
Embodied Carbon Calculator: United Kingdom (beta v1.2)
Embodied Carbon Calculator: ANZ
Supports implementation of the TM65 embodied carbon methodology in Australia and New Zealand
Embodied Carbon Calculator: Australia and New Zealand (beta v1)
Weather Data
Standard weather files to be used in building performance analysis using simulation tools
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Relative Exposure Index Calculator
Compare the efficacy of various air cleaners with methods of natural ventilation for effective air cleaning
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CEAM Make
Allows manufacturers to fully engage with the depth of detail required to create a fully circular economy-capable product
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CEAM Specify
Allows for the quick comparison of circular economy implications of two or more products
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Standard Drawing Symbols
A standardised set of drawing symbols that can be applied across the building services sector
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Digital Engineering Series Templates
Free templates provided for use alongside the CIBSE Digital Engineering Series
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Public Health Pipe-sizing Tool
Allows public health engineers to quickly and easily calculate required system parameters - COMING SOON!
Energy Assessment Tool
Provided with TM22 'Energy assessment and reporting methodology' (2006)
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IAQ Analysis Tool
Provided with AM10 'Natural ventilation in non-domestic buildings' (2005)
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