Digital literacy is increasingly recognised as a critical skill in contemporary society, particularly among adults who may lack formal education or training in computer usage. A quantitative survey approach was employed, utilising a structured questionnaire to gather data from a representative sample of adult Nigerians across different regions and socio-economic backgrounds. Data were analysed using statistical software to ensure reliability and validity. The analysis revealed that participants who received digital literacy training demonstrated an average increase in computer usage by 50% compared to those who did not receive such training, with significant improvements noted particularly among women and individuals from lower-income households. Digital literacy training programmes have shown promise in enhancing computer usage skills among Nigerian adults, especially when tailored to address specific needs and challenges faced by different demographic groups. Based on the findings, it is recommended that future digital literacy initiatives should be more inclusive and culturally sensitive, with a focus on reaching underserved populations such as women and low-income individuals.