Scope 3 typically represents 80–90% of total emissions for manufacturers, specifically Category 1 (Purchased Goods & Services). Generic tools use global averages. We use supplier-specific Life Cycle Assessment emission factors — traceable, ISO 14040/44 compliant, specific to your raw materials.
Instead of a generic calculator, we develop a customized Scope 3 carbon model based on your organization's actual value chain and business activities.
We first understand your business structure, products, operations, suppliers, customers and value chain.
Relevant upstream and downstream emission sources are identified and mapped according to your organization's activities.
Based on raw materials and their suppliers' details to get emission factors (EFs) for Scope 3 Category 1 and other categories.
Each purchased material gets an LCA emission factor, cradle-to-gate ISO 14040/44 compliant.
A customized calculation model is developed using your organization's data structure, methodology and LCA-based emission factors.
Receive organization-specific Scope 3 emissions results, ready for reporting and decarbonization planning.
| Feature | Scope 1 & 2 Calculator | Customized Scope 3 Model |
|---|---|---|
| Platform | Web-based calculator | Customized excel-based model/tool |
| Scope | Scope 1 & Scope 2 | Scope 1, Scope 2 & Scope 3 |
| Setup | Standardized | Organization-specific |
| Data structure | Guided forms | Customized data architecture |
| Value-chain mapping | Not required | Included |
| Emission-factor mapping | Built-in/default factors | Customized based on supplier details |
| Calculation logic | Standardized | Organization-specific |
| Suitable for | Organizations starting GHG accounting | Organizations developing detailed Scope 3 inventories & decarbonization pathway |
Scope 1 and Scope 2 emissions using our web-based calculators, and a fully customized Scope 3 model built around your organization's specific value chain.
Typically, fuel consumption, electricity consumption, refrigerant-related data and other applicable operational activity data for Scope 1 and 2; for Scope 3, raw materials and supplier details are key.
Yes. On the Scope 1 and Scope 2 calculator pages, auto-save stores your organisation details and entries in your browser so you can continue later.
Yes. Scope 1 and Scope 2 results can be downloaded as a PDF once your calculation is complete.
No. The Scope 3 model is developed based on your organization's specific value chain, relevant Scope 3 categories, activity data and calculation requirements, using emission factors derived with LCA methodology.
Tell us about your organization and we'll get in touch to scope your customized Scope 3 carbon model.
Use our separate web calculators for operational emissions. For structured learning on LCA, EPD and SimaPro, visit our LMS (separate platform).