The 'Bangladesh 2050 Energy Pathway's Calculator' is an innovative web-based computer model that displays the country's energy demand, supply, and their relationship with the country's greenhouse gas emissions reduction target. Developed by a team of researchers led by Dr. Monjur Mourshed from Cardiff University, this online software model integrates energy generation, usage, carbon emissions, and land use in Bangladesh. It allows policymakers to determine which energy sources should be utilized to minimize climate impacts. The calculator, supported by the UK Department for Energy and Climate Change and Bangladesh's Ministry of Power, Energy and Mineral Resources, is the first of its kind for a least developed country. It is available to the public and enables users to balance energy sources against energy demand up to 2050 to assess their impact on the country. The calculator is designed to facilitate high-level energy, economy, and emission pathway options exploration for the Bangladesh Government and the public. British High Commissioner in Dhaka, Robert Gibson, emphasized the importance of using the calculator in making informed energy investment decisions for the future. Dr. Saleemul Huq, Director of the International Centre for Climate Change and Development, highlighted the significance of developing a low carbon development pathway for Bangladesh and praised the Carbon Calculator as a valuable tool for achieving this goal.