Slip this ruler right onto your sock while it is still on the needles to easily gauge when to start the toe. With inches, centimeters, US Men/Women and Euro shoe sizes etched right on, you'll always get a perfect fit.
Adult socks typically have 10% negative ease and measure approximately 1/2" or 1.3 cm shorter then the foot length and 1" or 2.5 cm smaller then the foot circumference