Bilan Carbone® measures an organisation's greenhouse gas emissions over a year, whereas LCA measures a product's environmental impacts across its full life cycle. Bilan Carbone® is single-criterion (GHGs in tCO2e, broken down into scopes 1, 2 and 3) and follows the ABC methodology, compatible with the GHG Protocol and ISO 14064. LCA follows ISO 14040/14044 and, in Europe, the PEF method, with 16 indicators expressed per functional unit. In practice, the distinction between organisation and product almost always suffices to choose the tool.
Read the source article: LCA or Bilan Carbone®: how do they differ, which to choose?