About CarbonCalc
CarbonCalc is a simple emissions calculator that gives finance and ESG teams instant, reliable estimates of construction-related carbon emissions, using only your existing P&L or budget data.
Developed by Slattery - Australia’s leading carbon accounting team, our tool leverages a vast evidence base from hundreds of local projects to ensure your Scope 3 reporting is accurate, compliant, and ahead of the market.
With a focus on making sustainability reporting easy and accessible, CarbonCalc is designed for everyday use - no specialist knowledge or complex data required. Whether you’re tracking Net Zero progress or responding to new regulatory requirements, you’ll have the trusted insights you need, right at your fingertips.
About Slattery
Slattery is a property and construction advisory firm specialising in early phase advisory, quantity surveying, and carbon planning. Founded in 1976 and fully Australian owned, Slattery’s reputation is built on a commitment to excellence and innovation, which has seen the delivery of over 16,000 unique public and private sector projects.
With offices in Melbourne, Sydney, Brisbane, Perth, Hobart and Launceston, Slattery’s sector experience spans arts & culture, commercial, education, health & research, residential and transport infrastructure.
Learn more about Carbon Planning at Slattery here.
Frequently Asked Questions
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Nothing! The CarbonCalc tool is entirely free to use.
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We know you don’t always have a detailed breakdown of the construction activities that took place, so CarbonCalc doesn’t need a lot of detailed knowledge. Below is a breakdown of what you should include and exclude from your spend input.:
Include:
Building activity - including labour
Materials - all materials and supplies purchased as part of your activities.
Logistics - including on site works and getting everything to site
Exclude:
Consultant fees
Site purchase
Site preparation costs - including demolition and remediation
Fees associated with approvals and permits
Furnishings
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A dollar-spend-based approach reduces complexity by using readily available financial data (P&L or budgets) instead of detailed inventory tracking. This eliminates the need to gather granular material and project data, streamlines workflows, and minimises errors. It also removes the need for specialist knowledge, making emissions reporting faster, simpler, and more accessible for finance teams without construction expertise.