How to measure sleeve length. Measure from the center back of your neck at your spine to the end of your shoulder at the top of your arm. Place one end of the measuring tape at the center of the back of the collar just below the collar band. For suit jacket sleeves subtract an additional 12 inch 13 cm so the sleeve will be the correct length and allow your shirt cuff to pop out from underneath. Run the measuring tape along the yoke and down the sleeve to the end of the cuff. Some mostly taller people may have arm lengths over 39 inches 100 cm and should wear dress shirts with extra long sleeves.
More information on the european method. To measure your neck size and sleeve length start by wrapping a measuring tape around your neck so its 1 inch above the base of your neck. In most cases the sleeve length varies from 32 inches 813 cm to 37 inches 94 cm and everything in between. We will do that for you. Run the measuring tape over your shoulder and let it hang down to your hand. Next find your first sleeve measurement by placing the end of the measuring tape right below the nape of your neck and measuring from that point to the stitching at the shoulder.
Record the measurement you got to the nearest 14 inch 06 cm. To measure a dress shirts sleeve length start by spreading the dress shirt out on its front. Pull the sleeve firmly away from the dress shirt body. Round down or up as you normally would. Place one end of the measuring tape at the base of the center of the back of the neck. Take this measurement with you when you shop for new dress shirts.
Do not adjust for shrinkage. Always slightly bend the elbow when measuring to allow for extra ease. Measure from your shoulder to just past your wrist bone to where you would like your shirt cuff to sit. Measure to the center of the meaty part of your palm. Then write down the measurement.