Despite the pivotal role of the manufacturing sector in the Indonesian economy and its continuous growth, there exists a dearth of comprehensive research on the determinants of firm value within this sector. The lack of understanding regarding how financial factors such as leverage, liquidity, profitability, and firm size impact firm value among manufacturing companies listed on the IDX hinders effective decision-making for investors, creditors, stakeholders, and company management. This study aims to Investigate the effects of firm size, profitability, liquidity, and leverage on firm value is the main purpose of this study, which focuses on manufacturing companies listed on the Indonesia Stock Exchange (IDX). The population comprises manufacturing companies listed on the Indonesia Stock Exchange from 2018 to 2022. Using purposive sampling technique and going through the sampling criteria, a final sample of 82 companies was used in this research. The data analysis method used in this study was a regression analysis using SPSS software. The study revealed that higher debt levels (Leverage) and excessive cash reserves (Liquidity) were linked to decreased firm value. Additionally, the finding also shows that as companies became more profitable, their overall value tended to decrease. On a positive note, larger firms (Firm Size) exhibited higher company value. The findings have implications for investors, creditors, and stakeholders navigating the Indonesian manufacturing sector, providing nuanced insights into financial determinants of firm value. These findings emphasize the importance of a balanced financial strategy for companies and highlight the advantages of size in the economic landscape.