"Love at First Sight" received generally positive reviews from music critics; majority of the critics commended the song's commercial appeal and composition. Minor criticism was towards the production similarities of Minogue's previous singles from "Fever". "Love at First Sight" was a commercial success worldwide. In her native Australia, it peaked at number three on the ARIA Charts, but found even more success in the United Kingdom, where it debuted and peaked at number two on the UK Singles Chart. It also charted within the top-ten in countries including Canada, Denmark, Ireland, Spain and New Zealand. In the United States, it peaked at number 23 on the "Billboard" Hot 100 and number one on the Dance Club Songs chart.