Biogas technology has the potential to achieve at least eight of the Sustainable Development Goals (SDGs). This study assessed household biogas consumption against firewood and its socioeconomic and environmental impacts with regard to achieving the SDGs in the Iganga District, Uganda. In addition, factors hindering the adoption of biogas technology were assessed. Data were collected from 314 respondents using a questionnaire, interview, and observation. A mixed analytical approach combined descriptive analysis, multivariate analysis of variance and one-way analysis of variance tests to compare the impacts of biogas and firewood use and identify factors hindering the adoption of biogas technology. Results show that biogas consumption contributed to higher socioeconomic, health and environmental benefits than firewood. Biogas positively impacted SDG7, and indirectly, SDGs 2, 3, 5, 6, 8, 9, and 13. An estimated 46.9% of households perceive biogas as a clean fuel. The factors motivating biogas consumption include its smoke-free nature, women and children having more time to engage in other development activities and reduced time spent on cooking. In conclusion, biogas offers higher impacts on SDGs compared to firewood. Reviewing the current national renewable energy promotion frameworks to provide biogas subsidies to households and investors can contribute to increasing biogas consumption in households.