<Dd> male shoe size = 3 × last length in inches − 24 (\ displaystyle (\ mbox (male shoe size)) = 3 \ times (\ mbox (last length in inches)) - 24) </Dd> <P> Women's sizes are almost always determined with the "common" scale, in which women's sizes are equal to men's sizes plus 1.5 (for example, a men's 10.5 is a women's 12). In other words: </P> <Dl> <Dd> female shoe size (common) = 3 × last length in inches − 22 1 2 (\ displaystyle (\ mbox (female shoe size (common))) = 3 \ times (\ mbox (last length in inches)) - 22 (\ frac (1) (2))) </Dd> </Dl> <Dd> female shoe size (common) = 3 × last length in inches − 22 1 2 (\ displaystyle (\ mbox (female shoe size (common))) = 3 \ times (\ mbox (last length in inches)) - 22 (\ frac (1) (2))) </Dd>

Size 41 is equal to what us size