General satisfaction with life is often measured using single-item measure. Despite widespread use of single-item life satisfaction measure its psychometric properties have been rarely examined. Previous studies showed that single-item measure of satisfaction with life could be sufficient in terms of validity and reliability. The aim of this study was to assess the reliability and validity of single-item life satisfaction measure by comparing single-item measure to the Satisfaction with Life Scale (SWLS). Testing was conducted on a convenient sample of college students (N=687). Reliability of the single-item life satisfaction measure was estimated using two methods of estimation. Both methods suggested adequate reliability; .64 using the correction for attenuation formula and .7 using the factor analytic method. Validity of the single-item life satisfaction measure was estimated in three ways. The result provide support for the validity of single-item life satisfaction measure. Correlation between single-item measure and SWLS was .702. There were no significant differences in correlations patterns of two life satisfaction measures with the measure of general psychological distress and both measures show moderate correlation with the measure of general psychological distress. There were no significant gender differences when life satisfaction was measured by single-item and gender difference was significant when life satisfaction was measured by the SWLS according to which women are more satisfied with life than men and the effect size of gender is small.