Abstract. In moral foundations research, two single-item measures of political orientation – with anchors labeled “liberal-conservative” or “left-right” – have been alternatively used. Using a Finnish representative sample, we employed both measures. High conservatism was associated with binding foundations (loyalty, authority, and sanctity), while the associations with the individualizing foundations (harm and fairness) were practically zero. By contrast, the left-right dimension was not associated with the sanctity foundation, but was associated with all other foundations. The measures of political orientation were interchangeable only for fairness; harm was more strongly associated with the left-right dimension, and all binding foundations were more strongly associated with the liberal-conservative dimension. This suggests that at least in some countries, the liberal-conservative and left-right measures are not interchangeable.