Go to the web site "Fashionable Canes". They have a section on cane sizing. It's a relatively easy how-to, but the help of another makes it more accurate: Stand upright, feet together, hands at your sides, wearing shoes of a height of sole & heel as usual to you. Have your helper measure the distance from that little protruding bone on the pinky side of your wrist, to the floor. That length, usually between 34" -36" if you are 5'7" - 5'11, is the length your cane should be. Some guides suggest adding 1" to the measured distance. Remember that the rubber crutch tip used on most canes adds about .5" to the cane's length.