Commercially "If Your Girl Only Knew" performed well, peaking at number 11 on the US "Billboard" Hot 100 on the week ending on October 19, 1996. The song was just as successful on the US Hot R&B/Hip-Hop Songs chart topping the charts at number 1 for two consecutive weeks. The song also charted well on the US Rhythmic chart peaking within the top 10 at number 6, during the week ending on November 2, 1996. Towards the end of 1996, it was reported by Billboard that the song had sold over 600,000 copies in the United States.